Merge pull request #1548 from brun0ne/add-php-serialization

Add new operation: PHP Serialize

.cspell.json

@@ -0,0 +1,17 @@
+{
+    "version": "0.2",
+    "language": "en,en-gb",
+    "words": [],
+    "dictionaries": [
+      "npm",
+      "softwareTerms",
+      "node",
+      "html",
+      "css",
+      "bash",
+      "en-gb",
+      "misc"
+    ],
+    "ignorePaths": ["package.json", "package-lock.json", "node_modules"]
+  }
+  

.github/workflows/master.yml

@@ -19,6 +19,7 @@ jobs:
 
     - name: Install
       run: |
+        export DETECT_CHROMEDRIVER_VERSION=true
         npm install
         npm run setheapsize
 

.github/workflows/pull_requests.yml

@@ -18,6 +18,7 @@ jobs:
 
     - name: Install
       run: |
+        export DETECT_CHROMEDRIVER_VERSION=true
         npm install
         npm run setheapsize
 

.github/workflows/releases.yml

@@ -25,6 +25,7 @@ jobs:
 
     - name: Install
       run: |
+        export DETECT_CHROMEDRIVER_VERSION=true
         npm ci
         npm run setheapsize
 
@@ -61,12 +62,22 @@ jobs:
         tags: ${{ steps.image-metadata.outputs.tags }}
         labels: ${{ steps.image-metadata.outputs.labels }}
         containerfiles: ./Dockerfile
-        platforms: linux/amd64
+        platforms: linux/amd64,linux/arm64
         oci: true
+        # enable build layer caching between platforms
+        layers: true
         # Webpack seems to use a lot of open files, increase the max open file limit to accomodate.
         extra-args: |
           --ulimit nofile=10000
 
+    - name: Publish to GHCR
+      uses: redhat-actions/push-to-registry@v2
+      with:
+        image: ${{ steps.build-image.outputs.image }}
+        tags: ${{ steps.build-image.outputs.tags }}
+        registry: ${{ env.REGISTRY }}
+        username: ${{ env.REGISTRY_USER }}
+        password: ${{ env.REGISTRY_PASSWORD }}
 
     - name: Upload Release Assets
       id: upload-release-assets
@@ -81,13 +92,6 @@ jobs:
 
     - name: Publish to NPM
       uses: JS-DevTools/npm-publish@v1
+      if: false
       with:
-        token: ${{ secrets.NPM_TOKEN }}
+        token: ${{ secrets.NPM_TOKEN }}
-
-    - name: Publish to GHCR
-      uses: redhat-actions/push-to-registry@v2
-      with:
-        tags: ${{ steps.build-image.outputs.tags }}
-        registry: ${{ env.REGISTRY }}
-        username: ${{ env.REGISTRY_USER }}
-        password: ${{ env.REGISTRY_PASSWORD }}

Dockerfile

@@ -1,9 +1,36 @@
-FROM node:18-alpine AS build
+#####################################
+# Build the app to a static website #
+#####################################
+# Modifier --platform=$BUILDPLATFORM limits the platform to "BUILDPLATFORM" during buildx multi-platform builds
+# This is because npm "chromedriver" package is not compatiable with all platforms
+# For more info see: https://docs.docker.com/build/building/multi-platform/#cross-compilation
+FROM --platform=$BUILDPLATFORM node:18-alpine AS builder
 
+WORKDIR /app
+
+COPY package.json .
+COPY package-lock.json .
+
+# Install dependencies
+# --ignore-scripts prevents postinstall script (which runs grunt) as it depends on files other than package.json
+RUN npm ci --ignore-scripts
+
+# Copy files needed for postinstall and build
 COPY . .
-RUN npm ci
+
+# npm postinstall runs grunt, which depends on files other than package.json
+RUN npm run postinstall
+
+# Build the app
 RUN npm run build
 
-FROM nginx:1.25-alpine3.18 AS cyberchef
+#########################################
+# Package static build files into nginx #
+#########################################
+# We are using Github Actions: redhat-actions/buildah-build@v2 which needs manual selection of arch in base image
+# Remove TARGETARCH if docker buildx is supported in the CI release as --platform=$TARGETPLATFORM will be automatically set
+ARG TARGETARCH
+ARG TARGETPLATFORM
+FROM ${TARGETARCH}/nginx:stable-alpine AS cyberchef
 
-COPY --from=build ./build/prod /usr/share/nginx/html/
+COPY --from=builder /app/build/prod /usr/share/nginx/html/

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cyberchef",
-  "version": "10.19.0",
+  "version": "10.19.4",
   "description": "The Cyber Swiss Army Knife for encryption, encoding, compression and data analysis.",
   "author": "n1474335 <n1474335@gmail.com>",
   "homepage": "https://gchq.github.io/CyberChef",
@@ -55,11 +55,13 @@
     "babel-plugin-dynamic-import-node": "^2.3.3",
     "babel-plugin-transform-builtin-extend": "1.1.2",
     "base64-loader": "^1.0.0",
-    "chromedriver": "^125.0.3",
+    "chromedriver": "^130.0.0",
     "cli-progress": "^3.12.0",
     "colors": "^1.4.0",
+    "compression-webpack-plugin": "^11.1.0",
     "copy-webpack-plugin": "^12.0.2",
     "core-js": "^3.37.1",
+    "cspell": "^8.17.3",
     "css-loader": "7.1.2",
     "eslint": "^9.4.0",
     "eslint-plugin-jsdoc": "^48.2.9",
@@ -121,6 +123,7 @@
     "d3": "7.9.0",
     "d3-hexbin": "^0.2.2",
     "diff": "^5.2.0",
+    "dompurify": "^3.2.5",
     "es6-promisify": "^7.0.0",
     "escodegen": "^2.1.0",
     "esprima": "^4.0.1",
@@ -132,8 +135,8 @@
     "highlight.js": "^11.9.0",
     "ieee754": "^1.2.1",
     "jimp": "^0.22.12",
+    "jq-web": "^0.5.1",
     "jquery": "3.7.1",
-    "js-crc": "^0.2.0",
     "js-sha3": "^0.9.3",
     "jsesc": "^3.0.2",
     "json5": "^2.2.3",
@@ -159,7 +162,7 @@
     "notepack.io": "^3.0.1",
     "ntlm": "^0.1.3",
     "nwmatcher": "^1.4.4",
-    "otp": "0.1.3",
+    "otpauth": "9.3.6",
     "path": "^0.12.7",
     "popper.js": "^1.16.1",
     "process": "^0.11.10",
@@ -192,6 +195,7 @@
     "testui": "npx grunt testui",
     "testuidev": "npx nightwatch --env=dev",
     "lint": "npx grunt lint",
+    "lint:grammar": "cspell ./src",
     "postinstall": "npx grunt exec:fixCryptoApiImports && npx grunt exec:fixSnackbarMarkup && npx grunt exec:fixJimpModule",
     "newop": "node --experimental-modules --experimental-json-modules src/core/config/scripts/newOperation.mjs",
     "minor": "node --experimental-modules --experimental-json-modules src/core/config/scripts/newMinorVersion.mjs",

src/core/config/Categories.json

@@ -72,9 +72,14 @@
             "Avro to JSON",
             "CBOR Encode",
             "CBOR Decode",
+            "YAML to JSON",
+            "JSON to YAML",
             "Caret/M-decode",
             "Rison Encode",
-            "Rison Decode"
+            "Rison Decode",
+            "To Modhex",
+            "From Modhex",
+            "MIME Decoding"
         ]
     },
     {
@@ -164,6 +169,7 @@
         "name": "Public Key",
         "ops": [
             "Parse X.509 certificate",
+            "Parse X.509 CRL",
             "Parse ASN.1 hex string",
             "PEM to Hex",
             "Hex to PEM",
@@ -189,7 +195,9 @@
             "Parse SSH Host Key",
             "Parse CSR",
             "Public Key from Certificate",
-            "Public Key from Private Key"
+            "Public Key from Private Key",
+            "SM2 Encrypt",
+            "SM2 Decrypt"
         ]
     },
     {
@@ -233,9 +241,14 @@
             "Parse User Agent",
             "Parse IP range",
             "Parse IPv6 address",
+            "IPv6 Transition Addresses",
             "Parse IPv4 header",
+            "Strip IPv4 header",
             "Parse TCP",
+            "Strip TCP header",
+            "Parse TLS record",
             "Parse UDP",
+            "Strip UDP header",
             "Parse SSH Host Key",
             "Parse URI",
             "URL Encode",
@@ -268,7 +281,8 @@
             "Unicode Text Format",
             "Remove Diacritics",
             "Unescape Unicode Characters",
-            "Convert to NATO alphabet"
+            "Convert to NATO alphabet",
+            "Convert Leet Speak"
         ]
     },
     {
@@ -320,7 +334,9 @@
             "Unescape string",
             "Pseudo-Random Number Generator",
             "Sleep",
-            "File Tree"
+            "File Tree",
+            "Take nth bytes",
+            "Drop nth bytes"
         ]
     },
     {
@@ -429,9 +445,7 @@
             "Fletcher-64 Checksum",
             "Adler-32 Checksum",
             "Luhn Checksum",
-            "CRC-8 Checksum",
+            "CRC Checksum",
-            "CRC-16 Checksum",
-            "CRC-32 Checksum",
             "TCP/IP Checksum"
         ]
     },
@@ -453,8 +467,10 @@
             "CSS Minify",
             "XPath expression",
             "JPath expression",
+            "Jq",
             "CSS selector",
             "PHP Deserialize",
+            "PHP Serialize",
             "Microsoft Script Decoder",
             "Strip HTML tags",
             "Diff",

src/core/lib/Base32.mjs

@@ -0,0 +1,23 @@
+// import Utils from "../Utils.mjs";
+
+/**
+ * Base32 resources.
+ *
+ * @author Peter C-S [petercs@purelymail.com]
+ * @license Apache-2.0
+ */
+
+/**
+ * Base32 alphabets.
+ */
+export const ALPHABET_OPTIONS = [
+    {
+        name: "Standard", // https://www.rfc-editor.org/rfc/rfc4648#section-6
+        value: "A-Z2-7=",
+    },
+    {
+        name: "Hex Extended", // https://www.rfc-editor.org/rfc/rfc4648#section-7
+        value: "0-9A-V=",
+    },
+];
+

src/core/lib/Extract.mjs

@@ -62,3 +62,9 @@ export const URL_REGEX = new RegExp(protocol + hostname + "(?:" + port + ")?(?:"
  * Domain name regular expression
  */
 export const DOMAIN_REGEX = /\b((?=[a-z0-9-]{1,63}\.)(xn--)?[a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,63}\b/ig;
+
+
+/**
+ * DMARC Domain name regular expression
+ */
+export const DMARC_DOMAIN_REGEX = /\b((?=[a-z0-9_-]{1,63}\.)(xn--)?[a-z0-9_]+(-[a-z0-9_]+)*\.)+[a-z]{2,63}\b/ig;

src/core/lib/JA4.mjs

@@ -44,7 +44,7 @@ export function toJA4(bytes) {
         the TLS version is the value of the Protocol Version. Handshake version (located at the top of the packet)
         should be ignored.
     */
-    let version = tlsr.version.value;
+    let version = tlsr.handshake.value.helloVersion.value;
     for (const ext of tlsr.handshake.value.extensions.value) {
         if (ext.type.value === "supported_versions") {
             version = parseHighestSupportedVersion(ext.value.data);
@@ -189,7 +189,7 @@ export function toJA4S(bytes) {
         the TLS version is the value of the Protocol Version. Handshake version (located at the top of the packet)
         should be ignored.
     */
-    let version = tlsr.version.value;
+    let version = tlsr.handshake.value.helloVersion.value;
     for (const ext of tlsr.handshake.value.extensions.value) {
         if (ext.type.value === "supported_versions") {
             version = parseHighestSupportedVersion(ext.value.data);

src/core/lib/Modhex.mjs

@@ -0,0 +1,165 @@
+/**
+ * @author linuxgemini [ilteris@asenkron.com.tr]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Utils from "../Utils.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import { fromHex, toHex } from "./Hex.mjs";
+
+/**
+ * Modhex alphabet.
+ */
+const MODHEX_ALPHABET = "cbdefghijklnrtuv";
+
+
+/**
+ * Modhex alphabet map.
+ */
+const MODHEX_ALPHABET_MAP = MODHEX_ALPHABET.split("");
+
+
+/**
+ * Hex alphabet to substitute Modhex.
+ */
+const HEX_ALPHABET = "0123456789abcdef";
+
+
+/**
+ * Hex alphabet map to substitute Modhex.
+ */
+const HEX_ALPHABET_MAP = HEX_ALPHABET.split("");
+
+
+/**
+ * Convert a byte array into a modhex string.
+ *
+ * @param {byteArray|Uint8Array|ArrayBuffer} data
+ * @param {string} [delim=" "]
+ * @param {number} [padding=2]
+ * @returns {string}
+ *
+ * @example
+ * // returns "cl bf bu"
+ * toModhex([10,20,30]);
+ *
+ * // returns "cl:bf:bu"
+ * toModhex([10,20,30], ":");
+ */
+export function toModhex(data, delim=" ", padding=2, extraDelim="", lineSize=0) {
+    if (!data) return "";
+    if (data instanceof ArrayBuffer) data = new Uint8Array(data);
+
+    const regularHexString = toHex(data, "", padding, "", 0);
+
+    let modhexString = "";
+    for (const letter of regularHexString.split("")) {
+        modhexString += MODHEX_ALPHABET_MAP[HEX_ALPHABET_MAP.indexOf(letter)];
+    }
+
+    let output = "";
+    const groupingRegexp = new RegExp(`.{1,${padding}}`, "g");
+    const groupedModhex = modhexString.match(groupingRegexp);
+
+    for (let i = 0; i < groupedModhex.length; i++) {
+        const group = groupedModhex[i];
+        output += group + delim;
+
+        if (extraDelim) {
+            output += extraDelim;
+        }
+        // Add LF after each lineSize amount of bytes but not at the end
+        if ((i !== groupedModhex.length - 1) && ((i + 1) % lineSize === 0)) {
+            output += "\n";
+        }
+    }
+
+    // Remove the extraDelim at the end (if there is one)
+    // and remove the delim at the end, but if it's prepended there's nothing to remove
+    const rTruncLen = extraDelim.length + delim.length;
+    if (rTruncLen) {
+        // If rTruncLen === 0 then output.slice(0,0) will be returned, which is nothing
+        return output.slice(0, -rTruncLen);
+    } else {
+        return output;
+    }
+}
+
+
+/**
+ * Convert a byte array into a modhex string as efficiently as possible with no options.
+ *
+ * @param {byteArray|Uint8Array|ArrayBuffer} data
+ * @returns {string}
+ *
+ * @example
+ * // returns "clbfbu"
+ * toModhexFast([10,20,30]);
+ */
+export function toModhexFast(data) {
+    if (!data) return "";
+    if (data instanceof ArrayBuffer) data = new Uint8Array(data);
+
+    const output = [];
+
+    for (let i = 0; i < data.length; i++) {
+        output.push(MODHEX_ALPHABET_MAP[(data[i] >> 4) & 0xf]);
+        output.push(MODHEX_ALPHABET_MAP[data[i] & 0xf]);
+    }
+    return output.join("");
+}
+
+
+/**
+ * Convert a modhex string into a byte array.
+ *
+ * @param {string} data
+ * @param {string} [delim]
+ * @param {number} [byteLen=2]
+ * @returns {byteArray}
+ *
+ * @example
+ * // returns [10,20,30]
+ * fromModhex("cl bf bu");
+ *
+ * // returns [10,20,30]
+ * fromModhex("cl:bf:bu", "Colon");
+ */
+export function fromModhex(data, delim="Auto", byteLen=2) {
+    if (byteLen < 1 || Math.round(byteLen) !== byteLen)
+        throw new OperationError("Byte length must be a positive integer");
+
+    // The `.replace(/\s/g, "")` an interesting workaround: Hex "multiline" tests aren't actually
+    // multiline. Tests for Modhex fixes that, thus exposing the issue.
+    data = data.toLowerCase().replace(/\s/g, "");
+
+    if (delim !== "None") {
+        const delimRegex = delim === "Auto" ? /[^cbdefghijklnrtuv]/gi : Utils.regexRep(delim);
+        data = data.split(delimRegex);
+    } else {
+        data = [data];
+    }
+
+    let regularHexString = "";
+    for (let i = 0; i < data.length; i++) {
+        for (const letter of data[i].split("")) {
+            regularHexString += HEX_ALPHABET_MAP[MODHEX_ALPHABET_MAP.indexOf(letter)];
+        }
+    }
+
+    const output = fromHex(regularHexString, "None", byteLen);
+    return output;
+}
+
+
+/**
+ * To Modhex delimiters.
+ */
+export const TO_MODHEX_DELIM_OPTIONS = ["Space", "Percent", "Comma", "Semi-colon", "Colon", "Line feed", "CRLF", "None"];
+
+
+/**
+ * From Modhex delimiters.
+ */
+export const FROM_MODHEX_DELIM_OPTIONS = ["Auto"].concat(TO_MODHEX_DELIM_OPTIONS);

src/core/lib/Protocol.mjs

@@ -26,6 +26,9 @@ export function objToTable(obj, nested=false) {
         </tr>`;
 
     for (const key in obj) {
+        if (typeof obj[key] === "function")
+            continue;
+
         html += `<tr><td style='word-wrap: break-word'>${key}</td>`;
         if (typeof obj[key] === "object")
             html += `<td style='padding: 0'>${objToTable(obj[key], true)}</td>`;

src/core/lib/SM2.mjs

@@ -0,0 +1,258 @@
+/**
+ * Utilities and operations utilized for SM2 encryption and decryption
+ * @author flakjacket95 [dflack95@gmail.com]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import OperationError from "../errors/OperationError.mjs";
+import { fromHex } from "../lib/Hex.mjs";
+import Utils from "../Utils.mjs";
+import Sm3 from "crypto-api/src/hasher/sm3.mjs";
+import {toHex} from "crypto-api/src/encoder/hex.mjs";
+import r from "jsrsasign";
+
+/**
+ * SM2 Class for encryption and decryption operations
+ */
+export class SM2 {
+    /**
+     * Constructor for SM2 class; sets up with the curve and the output format as specified in user args
+     *
+     * @param {*} curve
+     * @param {*} format
+     */
+    constructor(curve, format) {
+        this.ecParams = null;
+        this.rng = new r.SecureRandom();
+        /*
+        For any additional curve definitions utilized by SM2, add another block like the below for that curve, then add the curve name to the Curve selection dropdown
+        */
+        r.crypto.ECParameterDB.regist(
+            "sm2p256v1", // name / p = 2**256 - 2**224 - 2**96 + 2**64 - 1
+            256,
+            "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", // p
+            "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFC", // a
+            "28E9FA9E9D9F5E344D5A9E4BCF6509A7F39789F515AB8F92DDBCBD414D940E93", // b
+            "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFF7203DF6B21C6052B53BBF40939D54123", // n
+            "1", // h
+            "32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7", // gx
+            "BC3736A2F4F6779C59BDCEE36B692153D0A9877CC62A474002DF32E52139F0A0", // gy
+            []
+        ); // alias
+        this.ecParams = r.crypto.ECParameterDB.getByName(curve);
+
+        this.format = format;
+    }
+
+    /**
+     * Set the public key coordinates for the SM2 class
+     *
+     * @param {string} publicKeyX
+     * @param {string} publicKeyY
+     */
+    setPublicKey(publicKeyX, publicKeyY) {
+        /*
+        * TODO: This needs some additional length validation; and checking for errors in the decoding process
+        * TODO: Can probably support other public key encoding methods here as well in the future
+        */
+        this.publicKey = this.ecParams.curve.decodePointHex("04" + publicKeyX + publicKeyY);
+
+        if (this.publicKey.isInfinity()) {
+            throw new OperationError("Invalid Public Key");
+        }
+    }
+
+    /**
+     * Set the private key value for the SM2 class
+     *
+     * @param {string} privateKey
+     */
+    setPrivateKey(privateKeyHex) {
+        this.privateKey = new r.BigInteger(privateKeyHex, 16);
+    }
+
+    /**
+     * Main encryption function; takes user input, processes encryption and returns the result in hex (with the components arranged as configured by the user args)
+     *
+     * @param {*} input
+     * @returns {string}
+     */
+    encrypt(input) {
+        const G = this.ecParams.G;
+
+        /*
+        * Compute a new, random public key along the same elliptic curve to form the starting point for our encryption process (record the resulting X and Y as hex to provide as part of the operation output)
+        * k: Randomly generated BigInteger
+        * c1: Result of dotting our curve generator point `G` with the value of `k`
+        */
+        const k = this.generatePublicKey();
+        const c1 = G.multiply(k);
+        const [hexC1X, hexC1Y] = this.getPointAsHex(c1);
+
+        /*
+        * Compute p2 (secret) using the public key, and the chosen k value above
+        */
+        const p2 = this.publicKey.multiply(k);
+
+        /*
+        * Compute the C3 SM3 hash before we transform the array
+        */
+        const c3 = this.c3(p2, input);
+
+        /*
+        * Genreate a proper length encryption key, XOR iteratively, and convert newly encrypted data to hex
+        */
+        const key = this.kdf(p2, input.byteLength);
+        for (let i = 0; i < input.byteLength; i++) {
+            input[i] ^= Utils.ord(key[i]);
+        }
+        const c2 = Buffer.from(input).toString("hex");
+
+        /*
+         * Check user input specs; order the output components as selected
+         */
+        if (this.format === "C1C3C2") {
+            return hexC1X + hexC1Y + c3 + c2;
+        } else {
+            return hexC1X + hexC1Y + c2 + c3;
+        }
+    }
+    /**
+     * Function to decrypt an SM2 encrypted message
+     *
+     * @param {*} input
+     */
+    decrypt(input) {
+        const c1X = input.slice(0, 64);
+        const c1Y = input.slice(64, 128);
+
+        let c3 = "";
+        let c2 = "";
+
+        if (this.format === "C1C3C2") {
+            c3 = input.slice(128, 192);
+            c2 = input.slice(192);
+        } else {
+            c2 = input.slice(128, -64);
+            c3 = input.slice(-64);
+        }
+        c2 = Uint8Array.from(fromHex(c2));
+        const c1 = this.ecParams.curve.decodePointHex("04" + c1X + c1Y);
+
+        /*
+        * Compute the p2 (secret) value by taking the C1 point provided in the encrypted package, and multiplying by the private k value
+        */
+        const p2 = c1.multiply(this.privateKey);
+
+        /*
+         * Similar to encryption; compute sufficient length key material and XOR the input data to recover the original message
+         */
+        const key = this.kdf(p2, c2.byteLength);
+
+        for (let i = 0; i < c2.byteLength; i++) {
+            c2[i] ^= Utils.ord(key[i]);
+        }
+
+        const check = this.c3(p2, c2);
+        if (check === c3) {
+            return c2.buffer;
+        } else {
+            throw new OperationError("Decryption Error -- Computed Hashes Do Not Match");
+        }
+    }
+
+
+    /**
+     * Generates a large random number
+     *
+     * @param {*} limit
+     * @returns
+     */
+    getBigRandom(limit) {
+        return new r.BigInteger(limit.bitLength(), this.rng)
+	    .mod(limit.subtract(r.BigInteger.ONE))
+	    .add(r.BigInteger.ONE);
+    }
+
+    /**
+     * Helper function for generating a large random K number; utilized for generating our initial C1 point
+     * TODO: Do we need to do any sort of validation on the resulting k values?
+     *
+     * @returns {BigInteger}
+     */
+    generatePublicKey() {
+        const n = this.ecParams.n;
+        const k = this.getBigRandom(n);
+        return k;
+    }
+
+    /**
+     * SM2 Key Derivation Function (KDF); Takes P2 point, and generates a key material stream large enough to encrypt all of the input data
+     *
+     * @param {*} p2
+     * @param {*} len
+     * @returns {string}
+     */
+    kdf(p2, len) {
+        const [hX, hY] = this.getPointAsHex(p2);
+
+        const total = Math.ceil(len / 32) + 1;
+        let cnt = 1;
+
+        let keyMaterial = "";
+
+        while (cnt < total) {
+            const num = Utils.intToByteArray(cnt, 4, "big");
+            const overall = fromHex(hX).concat(fromHex(hY)).concat(num);
+            keyMaterial += this.sm3(overall);
+            cnt++;
+        }
+        return keyMaterial;
+    }
+
+    /**
+     * Calculates the C3 component of our final encrypted payload; which is the SM3 hash of the P2 point and the original, unencrypted input data
+     *
+     * @param {*} p2
+     * @param {*} input
+     * @returns {string}
+     */
+    c3(p2, input) {
+        const [hX, hY] = this.getPointAsHex(p2);
+
+        const overall = fromHex(hX).concat(Array.from(input)).concat(fromHex(hY));
+
+        return toHex(this.sm3(overall));
+
+    }
+
+    /**
+     * SM3 setup helper function; takes input data as an array, processes the hash and returns the result
+     *
+     * @param {*} data
+     * @returns {string}
+     */
+    sm3(data) {
+        const hashData = Utils.arrayBufferToStr(Uint8Array.from(data).buffer, false);
+        const hasher = new Sm3();
+        hasher.update(hashData);
+        return hasher.finalize();
+    }
+
+    /**
+    * Utility function, returns an elliptic curve points X and Y values as hex;
+    *
+    * @param {EcPointFp} point
+    * @returns {[]}
+    */
+    getPointAsHex(point) {
+        const biX = point.getX().toBigInteger();
+        const biY = point.getY().toBigInteger();
+
+        const charlen = this.ecParams.keycharlen;
+        const hX   = ("0000000000" + biX.toString(16)).slice(- charlen);
+        const hY   = ("0000000000" + biY.toString(16)).slice(- charlen);
+        return [hX, hY];
+    }
+}

src/core/operations/AESDecrypt.mjs

@@ -112,7 +112,7 @@ class AESDecrypt extends Operation {
     run(input, args) {
         const key = Utils.convertToByteString(args[0].string, args[0].option),
             iv = Utils.convertToByteString(args[1].string, args[1].option),
-            mode = args[2].substring(0, 3),
+            mode = args[2].split("/")[0],
             noPadding = args[2].endsWith("NoPadding"),
             inputType = args[3],
             outputType = args[4],

src/core/operations/AESEncrypt.mjs

@@ -66,6 +66,14 @@ class AESEncrypt extends Operation {
                     {
                         name: "ECB",
                         off: [5]
+                    },
+                    {
+                        name: "CBC/NoPadding",
+                        off: [5]
+                    },
+                    {
+                        name: "ECB/NoPadding",
+                        off: [5]
                     }
                 ]
             },
@@ -98,7 +106,8 @@ class AESEncrypt extends Operation {
     run(input, args) {
         const key = Utils.convertToByteString(args[0].string, args[0].option),
             iv = Utils.convertToByteString(args[1].string, args[1].option),
-            mode = args[2],
+            mode = args[2].split("/")[0],
+            noPadding =  args[2].endsWith("NoPadding"),
             inputType = args[3],
             outputType = args[4],
             aad = Utils.convertToByteString(args[5].string, args[5].option);
@@ -114,11 +123,20 @@ The following algorithms will be used based on the size of the key:
 
         input = Utils.convertToByteString(input, inputType);
 
+        // Handle NoPadding modes
+        if (noPadding && input.length % 16 !== 0) {
+            throw new OperationError("Input length must be a multiple of 16 bytes for NoPadding modes.");
+        }
         const cipher = forge.cipher.createCipher("AES-" + mode, key);
         cipher.start({
             iv: iv,
             additionalData: mode === "GCM" ? aad : undefined
         });
+        if (noPadding) {
+            cipher.mode.pad = function(output, options) {
+                return true;
+            };
+        }
         cipher.update(forge.util.createBuffer(input));
         cipher.finish();
 

src/core/operations/AddLineNumbers.mjs

@@ -22,7 +22,13 @@ class AddLineNumbers extends Operation {
         this.description = "Adds line numbers to the output.";
         this.inputType = "string";
         this.outputType = "string";
-        this.args = [];
+        this.args = [
+            {
+                "name": "Offset",
+                "type": "number",
+                "value": 0
+            }
+        ];
     }
 
     /**
@@ -33,10 +39,11 @@ class AddLineNumbers extends Operation {
     run(input, args) {
         const lines = input.split("\n"),
             width = lines.length.toString().length;
+        const offset = args[0] ? parseInt(args[0], 10) : 0;
         let output = "";
 
         for (let n = 0; n < lines.length; n++) {
-            output += (n+1).toString().padStart(width, " ") + " " + lines[n] + "\n";
+            output += (n+1+offset).toString().padStart(width, " ") + " " + lines[n] + "\n";
         }
         return output.slice(0, output.length-1);
     }

src/core/operations/BlowfishDecrypt.mjs

@@ -76,8 +76,8 @@ class BlowfishDecrypt extends Operation {
 Blowfish's key length needs to be between 4 and 56 bytes (32-448 bits).`);
         }
 
-        if (iv.length !== 8) {
+        if (mode !== "ECB" && iv.length !== 8) {
-            throw new OperationError(`Invalid IV length: ${iv.length} bytes. Expected 8 bytes`);
+            throw new OperationError(`Invalid IV length: ${iv.length} bytes. Expected 8 bytes.`);
         }
 
         input = Utils.convertToByteString(input, inputType);

src/core/operations/BlowfishEncrypt.mjs

@@ -72,12 +72,12 @@ class BlowfishEncrypt extends Operation {
 
         if (key.length < 4 || key.length > 56) {
             throw new OperationError(`Invalid key length: ${key.length} bytes
-    
+
 Blowfish's key length needs to be between 4 and 56 bytes (32-448 bits).`);
         }
 
-        if (iv.length !== 8) {
+        if (mode !== "ECB" && iv.length !== 8) {
-            throw new OperationError(`Invalid IV length: ${iv.length} bytes. Expected 8 bytes`);
+            throw new OperationError(`Invalid IV length: ${iv.length} bytes. Expected 8 bytes.`);
         }
 
         input = Utils.convertToByteString(input, inputType);

src/core/operations/CRC16Checksum.mjs

@@ -1,41 +0,0 @@
-/**
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- */
-
-import Operation from "../Operation.mjs";
-import JSCRC from "js-crc";
-
-/**
- * CRC-16 Checksum operation
- */
-class CRC16Checksum extends Operation {
-
-    /**
-     * CRC16Checksum constructor
-     */
-    constructor() {
-        super();
-
-        this.name = "CRC-16 Checksum";
-        this.module = "Crypto";
-        this.description = "A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data.<br><br>The CRC was invented by W. Wesley Peterson in 1961.";
-        this.infoURL = "https://wikipedia.org/wiki/Cyclic_redundancy_check";
-        this.inputType = "ArrayBuffer";
-        this.outputType = "string";
-        this.args = [];
-    }
-
-    /**
-     * @param {ArrayBuffer} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    run(input, args) {
-        return JSCRC.crc16(input);
-    }
-
-}
-
-export default CRC16Checksum;

src/core/operations/CRC32Checksum.mjs

@@ -1,41 +0,0 @@
-/**
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- */
-
-import Operation from "../Operation.mjs";
-import JSCRC from "js-crc";
-
-/**
- * CRC-32 Checksum operation
- */
-class CRC32Checksum extends Operation {
-
-    /**
-     * CRC32Checksum constructor
-     */
-    constructor() {
-        super();
-
-        this.name = "CRC-32 Checksum";
-        this.module = "Crypto";
-        this.description = "A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data.<br><br>The CRC was invented by W. Wesley Peterson in 1961; the 32-bit CRC function of Ethernet and many other standards is the work of several researchers and was published in 1975.";
-        this.infoURL = "https://wikipedia.org/wiki/Cyclic_redundancy_check";
-        this.inputType = "ArrayBuffer";
-        this.outputType = "string";
-        this.args = [];
-    }
-
-    /**
-     * @param {ArrayBuffer} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    run(input, args) {
-        return JSCRC.crc32(input);
-    }
-
-}
-
-export default CRC32Checksum;

src/core/operations/CRC8Checksum.mjs

@@ -1,157 +0,0 @@
-/**
- * @author mshwed [m@ttshwed.com]
- * @copyright Crown Copyright 2019
- * @license Apache-2.0
- */
-
-import Operation from "../Operation.mjs";
-import OperationError from "../errors/OperationError.mjs";
-
-import { toHexFast } from "../lib/Hex.mjs";
-
-/**
- * CRC-8 Checksum operation
- */
-class CRC8Checksum extends Operation {
-
-    /**
-     * CRC8Checksum constructor
-     */
-    constructor() {
-        super();
-
-        this.name = "CRC-8 Checksum";
-        this.module = "Crypto";
-        this.description = "A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data.<br><br>The CRC was invented by W. Wesley Peterson in 1961.";
-        this.infoURL = "https://wikipedia.org/wiki/Cyclic_redundancy_check";
-        this.inputType = "ArrayBuffer";
-        this.outputType = "string";
-        this.args = [
-            {
-                "name": "Algorithm",
-                "type": "option",
-                "value": [
-                    "CRC-8",
-                    "CRC-8/CDMA2000",
-                    "CRC-8/DARC",
-                    "CRC-8/DVB-S2",
-                    "CRC-8/EBU",
-                    "CRC-8/I-CODE",
-                    "CRC-8/ITU",
-                    "CRC-8/MAXIM",
-                    "CRC-8/ROHC",
-                    "CRC-8/WCDMA"
-                ]
-            }
-        ];
-    }
-
-    /**
-     * Generates the pre-computed lookup table for byte division
-     *
-     * @param polynomial
-     */
-    calculateCRC8LookupTable(polynomial) {
-        const crc8Table = new Uint8Array(256);
-
-        let currentByte;
-        for (let i = 0; i < 256; i++) {
-            currentByte = i;
-            for (let bit = 0; bit < 8; bit++) {
-                if ((currentByte & 0x80) !== 0) {
-                    currentByte <<= 1;
-                    currentByte ^= polynomial;
-                } else {
-                    currentByte <<= 1;
-                }
-            }
-
-            crc8Table[i] = currentByte;
-        }
-
-        return crc8Table;
-    }
-
-    /**
-     * Calculates the CRC-8 Checksum from an input
-     *
-     * @param {ArrayBuffer} input
-     * @param {number} polynomial
-     * @param {number} initializationValue
-     * @param {boolean} inputReflection
-     * @param {boolean} outputReflection
-     * @param {number} xorOut
-     */
-    calculateCRC8(input, polynomial, initializationValue, inputReflection, outputReflection, xorOut) {
-        const crcSize = 8;
-        const crcTable = this.calculateCRC8LookupTable(polynomial);
-
-        let crc = initializationValue !== 0 ? initializationValue : 0;
-        let currentByte, position;
-
-        input = new Uint8Array(input);
-        for (const inputByte of input) {
-            currentByte = inputReflection ? this.reverseBits(inputByte, crcSize) : inputByte;
-
-            position = (currentByte ^ crc) & 255;
-            crc = crcTable[position];
-        }
-
-        crc = outputReflection ? this.reverseBits(crc, crcSize) : crc;
-
-        if (xorOut !== 0) crc = crc ^ xorOut;
-
-        return toHexFast(new Uint8Array([crc]));
-    }
-
-    /**
-     * Reverse the bits for a given input byte.
-     *
-     * @param {number} input
-     */
-    reverseBits(input, hashSize) {
-        let reversedByte = 0;
-        for (let i = hashSize - 1; i >= 0; i--) {
-            reversedByte |= ((input & 1) << i);
-            input >>= 1;
-        }
-
-        return reversedByte;
-    }
-
-    /**
-     * @param {ArrayBuffer} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    run(input, args) {
-        const algorithm = args[0];
-
-        switch (algorithm) {
-            case "CRC-8":
-                return this.calculateCRC8(input, 0x7, 0x0, false, false, 0x0);
-            case "CRC-8/CDMA2000":
-                return this.calculateCRC8(input, 0x9B, 0xFF, false, false, 0x0);
-            case "CRC-8/DARC":
-                return this.calculateCRC8(input, 0x39, 0x0, true, true, 0x0);
-            case "CRC-8/DVB-S2":
-                return this.calculateCRC8(input, 0xD5, 0x0, false, false, 0x0);
-            case "CRC-8/EBU":
-                return this.calculateCRC8(input, 0x1D, 0xFF, true, true, 0x0);
-            case "CRC-8/I-CODE":
-                return this.calculateCRC8(input, 0x1D, 0xFD, false, false, 0x0);
-            case "CRC-8/ITU":
-                return this.calculateCRC8(input, 0x7, 0x0, false, false, 0x55);
-            case "CRC-8/MAXIM":
-                return this.calculateCRC8(input, 0x31, 0x0, true, true, 0x0);
-            case "CRC-8/ROHC":
-                return this.calculateCRC8(input, 0x7, 0xFF, true, true, 0x0);
-            case "CRC-8/WCDMA":
-                return this.calculateCRC8(input, 0x9B, 0x0, true, true, 0x0);
-            default:
-                throw new OperationError("Unknown checksum algorithm");
-        }
-    }
-}
-
-export default CRC8Checksum;

src/core/operations/ConvertLeetSpeak.mjs

@@ -0,0 +1,116 @@
+/**
+ * @author bartblaze []
+ * @copyright Crown Copyright 2025
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+
+/**
+ * Convert Leet Speak operation
+ */
+class ConvertLeetSpeak extends Operation {
+    /**
+     * ConvertLeetSpeak constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Convert Leet Speak";
+        this.module = "Default";
+        this.description = "Converts to and from Leet Speak.";
+        this.infoURL = "https://wikipedia.org/wiki/Leet";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Direction",
+                type: "option",
+                value: ["To Leet Speak", "From Leet Speak"],
+                defaultIndex: 0
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const direction = args[0];
+
+        if (direction === "To Leet Speak") {
+            return input.replace(/[a-z]/gi, char => {
+                const leetChar = toLeetMap[char.toLowerCase()] || char;
+                return char === char.toUpperCase() ? leetChar.toUpperCase() : leetChar;
+            });
+        } else if (direction === "From Leet Speak") {
+            return input.replace(/[48cd3f6h1jklmn0pqr57uvwxyz]/gi, char => {
+                const normalChar = fromLeetMap[char] || char;
+                return normalChar;
+            });
+        }
+    }
+}
+
+const toLeetMap = {
+    "a": "4",
+    "b": "b",
+    "c": "c",
+    "d": "d",
+    "e": "3",
+    "f": "f",
+    "g": "g",
+    "h": "h",
+    "i": "1",
+    "j": "j",
+    "k": "k",
+    "l": "l",
+    "m": "m",
+    "n": "n",
+    "o": "0",
+    "p": "p",
+    "q": "q",
+    "r": "r",
+    "s": "5",
+    "t": "7",
+    "u": "u",
+    "v": "v",
+    "w": "w",
+    "x": "x",
+    "y": "y",
+    "z": "z"
+};
+
+const fromLeetMap = {
+    "4": "a",
+    "b": "b",
+    "c": "c",
+    "d": "d",
+    "3": "e",
+    "f": "f",
+    "g": "g",
+    "h": "h",
+    "1": "i",
+    "j": "j",
+    "k": "k",
+    "l": "l",
+    "m": "m",
+    "n": "n",
+    "0": "o",
+    "p": "p",
+    "q": "q",
+    "r": "r",
+    "5": "s",
+    "7": "t",
+    "u": "u",
+    "v": "v",
+    "w": "w",
+    "x": "x",
+    "y": "y",
+    "z": "z"
+};
+
+export default ConvertLeetSpeak;
+

src/core/operations/DESDecrypt.mjs

@@ -22,7 +22,7 @@ class DESDecrypt extends Operation {
 
         this.name = "DES Decrypt";
         this.module = "Ciphers";
-        this.description = "DES is a previously dominant algorithm for encryption, and was published as an official U.S. Federal Information Processing Standard (FIPS). It is now considered to be insecure due to its small key size.<br><br><b>Key:</b> DES uses a key length of 8 bytes (64 bits).<br>Triple DES uses a key length of 24 bytes (192 bits).<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used as a default.";
+        this.description = "DES is a previously dominant algorithm for encryption, and was published as an official U.S. Federal Information Processing Standard (FIPS). It is now considered to be insecure due to its small key size.<br><br><b>Key:</b> DES uses a key length of 8 bytes (64 bits).<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used as a default.";
         this.infoURL = "https://wikipedia.org/wiki/Data_Encryption_Standard";
         this.inputType = "string";
         this.outputType = "string";
@@ -72,8 +72,7 @@ class DESDecrypt extends Operation {
         if (key.length !== 8) {
             throw new OperationError(`Invalid key length: ${key.length} bytes
 
-DES uses a key length of 8 bytes (64 bits).
+DES uses a key length of 8 bytes (64 bits).`);
-Triple DES uses a key length of 24 bytes (192 bits).`);
         }
         if (iv.length !== 8 && mode !== "ECB") {
             throw new OperationError(`Invalid IV length: ${iv.length} bytes

src/core/operations/DESEncrypt.mjs

@@ -22,7 +22,7 @@ class DESEncrypt extends Operation {
 
         this.name = "DES Encrypt";
         this.module = "Ciphers";
-        this.description = "DES is a previously dominant algorithm for encryption, and was published as an official U.S. Federal Information Processing Standard (FIPS). It is now considered to be insecure due to its small key size.<br><br><b>Key:</b> DES uses a key length of 8 bytes (64 bits).<br>Triple DES uses a key length of 24 bytes (192 bits).<br><br>You can generate a password-based key using one of the KDF operations.<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used.";
+        this.description = "DES is a previously dominant algorithm for encryption, and was published as an official U.S. Federal Information Processing Standard (FIPS). It is now considered to be insecure due to its small key size.<br><br><b>Key:</b> DES uses a key length of 8 bytes (64 bits).<br><br>You can generate a password-based key using one of the KDF operations.<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used.";
         this.infoURL = "https://wikipedia.org/wiki/Data_Encryption_Standard";
         this.inputType = "string";
         this.outputType = "string";
@@ -70,8 +70,7 @@ class DESEncrypt extends Operation {
         if (key.length !== 8) {
             throw new OperationError(`Invalid key length: ${key.length} bytes
 
-DES uses a key length of 8 bytes (64 bits).
+DES uses a key length of 8 bytes (64 bits).`);
-Triple DES uses a key length of 24 bytes (192 bits).`);
         }
         if (iv.length !== 8 && mode !== "ECB") {
             throw new OperationError(`Invalid IV length: ${iv.length} bytes

src/core/operations/DropNthBytes.mjs

@@ -0,0 +1,79 @@
+/**
+ * @author Oshawk [oshawk@protonmail.com]
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+
+/**
+ * Drop nth bytes operation
+ */
+class DropNthBytes extends Operation {
+
+    /**
+     * DropNthBytes constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Drop nth bytes";
+        this.module = "Default";
+        this.description = "Drops every nth byte starting with a given byte.";
+        this.infoURL = "";
+        this.inputType = "byteArray";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                name: "Drop every",
+                type: "number",
+                value: 4
+            },
+            {
+                name: "Starting at",
+                type: "number",
+                value: 0
+            },
+            {
+                name: "Apply to each line",
+                type: "boolean",
+                value: false
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const n = args[0];
+        const start = args[1];
+        const eachLine = args[2];
+
+        if (parseInt(n, 10) !== n || n <= 0) {
+            throw new OperationError("'Drop every' must be a positive integer.");
+        }
+        if (parseInt(start, 10) !== start || start < 0) {
+            throw new OperationError("'Starting at' must be a positive or zero integer.");
+        }
+
+        let offset = 0;
+        const output = [];
+        for (let i = 0; i < input.length; i++) {
+            if (eachLine && input[i] === 0x0a) {
+                output.push(0x0a);
+                offset = i + 1;
+            } else if (i - offset < start || (i - (start + offset)) % n !== 0) {
+                output.push(input[i]);
+            }
+        }
+
+        return output;
+    }
+
+}
+
+export default DropNthBytes;

src/core/operations/ExtractDomains.mjs

@@ -5,7 +5,7 @@
  */
 
 import Operation from "../Operation.mjs";
-import { search, DOMAIN_REGEX } from "../lib/Extract.mjs";
+import { search, DOMAIN_REGEX, DMARC_DOMAIN_REGEX } from "../lib/Extract.mjs";
 import { caseInsensitiveSort } from "../lib/Sort.mjs";
 
 /**
@@ -39,6 +39,11 @@ class ExtractDomains extends Operation {
                 name: "Unique",
                 type: "boolean",
                 value: false
+            },
+            {
+                name: "Underscore (DMARC, DKIM, etc)",
+                type: "boolean",
+                value: false
             }
         ];
     }
@@ -49,11 +54,11 @@ class ExtractDomains extends Operation {
      * @returns {string}
      */
     run(input, args) {
-        const [displayTotal, sort, unique] = args;
+        const [displayTotal, sort, unique, dmarc] = args;
 
         const results = search(
             input,
-            DOMAIN_REGEX,
+            dmarc ? DMARC_DOMAIN_REGEX : DOMAIN_REGEX,
             null,
             sort ? caseInsensitiveSort : null,
             unique

src/core/operations/FromBase32.mjs

@@ -6,6 +6,8 @@
 
 import Operation from "../Operation.mjs";
 import Utils from "../Utils.mjs";
+import {ALPHABET_OPTIONS} from "../lib/Base32.mjs";
+
 
 /**
  * From Base32 operation
@@ -27,8 +29,8 @@ class FromBase32 extends Operation {
         this.args = [
             {
                 name: "Alphabet",
-                type: "binaryString",
+                type: "editableOption",
-                value: "A-Z2-7="
+                value: ALPHABET_OPTIONS
             },
             {
                 name: "Remove non-alphabet chars",
@@ -41,6 +43,11 @@ class FromBase32 extends Operation {
                 pattern: "^(?:[A-Z2-7]{8})+(?:[A-Z2-7]{2}={6}|[A-Z2-7]{4}={4}|[A-Z2-7]{5}={3}|[A-Z2-7]{7}={1})?$",
                 flags: "",
                 args: ["A-Z2-7=", false]
+            },
+            {
+                pattern: "^(?:[0-9A-V]{8})+(?:[0-9A-V]{2}={6}|[0-9A-V]{4}={4}|[0-9A-V]{5}={3}|[0-9A-V]{7}={1})?$",
+                flags: "",
+                args: ["0-9A-V=", false]
             }
         ];
     }
@@ -96,3 +103,4 @@ class FromBase32 extends Operation {
 }
 
 export default FromBase32;
+

src/core/operations/FromModhex.mjs

@@ -0,0 +1,84 @@
+/**
+ * @author linuxgemini [ilteris@asenkron.com.tr]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import { FROM_MODHEX_DELIM_OPTIONS, fromModhex } from "../lib/Modhex.mjs";
+
+/**
+ * From Modhex operation
+ */
+class FromModhex extends Operation {
+
+    /**
+     * FromModhex constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "From Modhex";
+        this.module = "Default";
+        this.description = "Converts a modhex byte string back into its raw value.";
+        this.infoURL = "https://en.wikipedia.org/wiki/YubiKey#ModHex";
+        this.inputType = "string";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                name: "Delimiter",
+                type: "option",
+                value: FROM_MODHEX_DELIM_OPTIONS
+            }
+        ];
+        this.checks = [
+            {
+                pattern: "^(?:[cbdefghijklnrtuv]{2})+$",
+                flags: "i",
+                args: ["None"]
+            },
+            {
+                pattern: "^[cbdefghijklnrtuv]{2}(?: [cbdefghijklnrtuv]{2})*$",
+                flags: "i",
+                args: ["Space"]
+            },
+            {
+                pattern: "^[cbdefghijklnrtuv]{2}(?:,[cbdefghijklnrtuv]{2})*$",
+                flags: "i",
+                args: ["Comma"]
+            },
+            {
+                pattern: "^[cbdefghijklnrtuv]{2}(?:;[cbdefghijklnrtuv]{2})*$",
+                flags: "i",
+                args: ["Semi-colon"]
+            },
+            {
+                pattern: "^[cbdefghijklnrtuv]{2}(?::[cbdefghijklnrtuv]{2})*$",
+                flags: "i",
+                args: ["Colon"]
+            },
+            {
+                pattern: "^[cbdefghijklnrtuv]{2}(?:\\n[cbdefghijklnrtuv]{2})*$",
+                flags: "i",
+                args: ["Line feed"]
+            },
+            {
+                pattern: "^[cbdefghijklnrtuv]{2}(?:\\r\\n[cbdefghijklnrtuv]{2})*$",
+                flags: "i",
+                args: ["CRLF"]
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const delim = args[0] || "Auto";
+        return fromModhex(input, delim, 2);
+    }
+}
+
+export default FromModhex;

src/core/operations/GenerateAllHashes.mjs

@@ -27,9 +27,7 @@ import Fletcher16Checksum from "./Fletcher16Checksum.mjs";
 import Fletcher32Checksum from "./Fletcher32Checksum.mjs";
 import Fletcher64Checksum from "./Fletcher64Checksum.mjs";
 import Adler32Checksum from "./Adler32Checksum.mjs";
-import CRC8Checksum from "./CRC8Checksum.mjs";
+import CRCChecksum from "./CRCChecksum.mjs";
-import CRC16Checksum from "./CRC16Checksum.mjs";
-import CRC32Checksum from "./CRC32Checksum.mjs";
 import BLAKE2b from "./BLAKE2b.mjs";
 import BLAKE2s from "./BLAKE2s.mjs";
 import Streebog from "./Streebog.mjs";
@@ -120,9 +118,9 @@ class GenerateAllHashes extends Operation {
             {name: "Fletcher-32", algo: (new Fletcher32Checksum), inputType: "byteArray", params: []},
             {name: "Fletcher-64", algo: (new Fletcher64Checksum), inputType: "byteArray", params: []},
             {name: "Adler-32", algo: (new Adler32Checksum), inputType: "byteArray", params: []},
-            {name: "CRC-8", algo: (new CRC8Checksum), inputType: "arrayBuffer", params: ["CRC-8"]},
+            {name: "CRC-8", algo: (new CRCChecksum), inputType: "arrayBuffer", params: ["CRC-8"]},
-            {name: "CRC-16", algo: (new CRC16Checksum), inputType: "arrayBuffer", params: []},
+            {name: "CRC-16", algo: (new CRCChecksum), inputType: "arrayBuffer", params: ["CRC-16"]},
-            {name: "CRC-32", algo: (new CRC32Checksum), inputType: "arrayBuffer", params: []}
+            {name: "CRC-32", algo: (new CRCChecksum), inputType: "arrayBuffer", params: ["CRC-32"]}
         ];
     }
 

src/core/operations/GenerateHOTP.mjs

@@ -5,16 +5,14 @@
  */
 
 import Operation from "../Operation.mjs";
-import otp from "otp";
+import * as OTPAuth from "otpauth";
-import ToBase32 from "./ToBase32.mjs";
 
 /**
  * Generate HOTP operation
  */
 class GenerateHOTP extends Operation {
-
     /**
-     * GenerateHOTP constructor
+     *
      */
     constructor() {
         super();
@@ -31,11 +29,6 @@ class GenerateHOTP extends Operation {
                 "type": "string",
                 "value": ""
             },
-            {
-                "name": "Key size",
-                "type": "number",
-                "value": 32
-            },
             {
                 "name": "Code length",
                 "type": "number",
@@ -50,21 +43,26 @@ class GenerateHOTP extends Operation {
     }
 
     /**
-     * @param {ArrayBuffer} input
+     *
-     * @param {Object[]} args
-     * @returns {string}
      */
     run(input, args) {
-        const otpObj = otp({
+        const secretStr = new TextDecoder("utf-8").decode(input).trim();
-            name: args[0],
+        const secret = secretStr ? secretStr.toUpperCase().replace(/\s+/g, "") : "";
-            keySize: args[1],
-            codeLength: args[2],
-            secret: (new ToBase32).run(input, []).split("=")[0],
-        });
-        const counter = args[3];
-        return `URI: ${otpObj.hotpURL}\n\nPassword: ${otpObj.hotp(counter)}`;
-    }
 
+        const hotp = new OTPAuth.HOTP({
+            issuer: "",
+            label: args[0],
+            algorithm: "SHA1",
+            digits: args[1],
+            counter: args[2],
+            secret: OTPAuth.Secret.fromBase32(secret)
+        });
+
+        const uri = hotp.toString();
+        const code = hotp.generate();
+
+        return `URI: ${uri}\n\nPassword: ${code}`;
+    }
 }
 
 export default GenerateHOTP;

src/core/operations/GenerateTOTP.mjs

@@ -5,20 +5,17 @@
  */
 
 import Operation from "../Operation.mjs";
-import otp from "otp";
+import * as OTPAuth from "otpauth";
-import ToBase32 from "./ToBase32.mjs";
 
 /**
  * Generate TOTP operation
  */
 class GenerateTOTP extends Operation {
-
     /**
-     * GenerateTOTP constructor
+     *
      */
     constructor() {
         super();
-
         this.name = "Generate TOTP";
         this.module = "Default";
         this.description = "The Time-based One-Time Password algorithm (TOTP) is an algorithm that computes a one-time password from a shared secret key and the current time. It has been adopted as Internet Engineering Task Force standard RFC 6238, is the cornerstone of Initiative For Open Authentication (OAUTH), and is used in a number of two-factor authentication systems. A TOTP is an HOTP where the counter is the current time.<br><br>Enter the secret as the input or leave it blank for a random secret to be generated. T0 and T1 are in seconds.";
@@ -31,11 +28,6 @@ class GenerateTOTP extends Operation {
                 "type": "string",
                 "value": ""
             },
-            {
-                "name": "Key size",
-                "type": "number",
-                "value": 32
-            },
             {
                 "name": "Code length",
                 "type": "number",
@@ -55,22 +47,27 @@ class GenerateTOTP extends Operation {
     }
 
     /**
-     * @param {ArrayBuffer} input
+     *
-     * @param {Object[]} args
-     * @returns {string}
      */
     run(input, args) {
-        const otpObj = otp({
+        const secretStr = new TextDecoder("utf-8").decode(input).trim();
-            name: args[0],
+        const secret = secretStr ? secretStr.toUpperCase().replace(/\s+/g, "") : "";
-            keySize: args[1],
-            codeLength: args[2],
-            secret: (new ToBase32).run(input, []).split("=")[0],
-            epoch: args[3],
-            timeSlice: args[4]
-        });
-        return `URI: ${otpObj.totpURL}\n\nPassword: ${otpObj.totp()}`;
-    }
 
+        const totp = new OTPAuth.TOTP({
+            issuer: "",
+            label: args[0],
+            algorithm: "SHA1",
+            digits: args[1],
+            period: args[3],
+            epoch: args[2] * 1000, // Convert seconds to milliseconds
+            secret: OTPAuth.Secret.fromBase32(secret)
+        });
+
+        const uri = totp.toString();
+        const code = totp.generate();
+
+        return `URI: ${uri}\n\nPassword: ${code}`;
+    }
 }
 
 export default GenerateTOTP;

src/core/operations/IPv6TransitionAddresses.mjs

@@ -0,0 +1,209 @@
+/**
+ * @author jb30795 [jb30795@proton.me]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+
+/**
+ * IPv6 Transition Addresses operation
+ */
+class IPv6TransitionAddresses extends Operation {
+
+    /**
+     * IPv6TransitionAddresses constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "IPv6 Transition Addresses";
+        this.module = "Default";
+        this.description = "Converts IPv4 addresses to their IPv6 Transition addresses. IPv6 Transition addresses can also be converted back into their original IPv4 address. MAC addresses can also be converted into the EUI-64 format, this can them be appended to your IPv6 /64 range to obtain a full /128 address.<br><br>Transition technologies enable translation between IPv4 and IPv6 addresses or tunneling to allow traffic to pass through the incompatible network, allowing the two standards to coexist.<br><br>Only /24 ranges and currently handled. Remove headers to easily copy out results.";
+        this.infoURL = "https://wikipedia.org/wiki/IPv6_transition_mechanism";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+	    {
+                "name": "Ignore ranges",
+                "type": "boolean",
+	        "value": true
+	    },
+            {
+                "name": "Remove headers",
+                "type": "boolean",
+                "value": false
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const XOR = {"0": "2", "1": "3", "2": "0", "3": "1", "4": "6", "5": "7", "6": "4", "7": "5", "8": "a", "9": "b", "a": "8", "b": "9", "c": "e", "d": "f", "e": "c", "f": "d"};
+
+        /**
+	 * Function to convert to hex
+	 */
+        function hexify(octet) {
+            return Number(octet).toString(16).padStart(2, "0");
+        }
+
+        /**
+	 * Function to convert Hex to Int
+	 */
+        function intify(hex) {
+            return parseInt(hex, 16);
+        }
+
+        /**
+	 * Function converts IPv4 to IPv6 Transtion address
+	 */
+        function ipTransition(input, range) {
+            let output = "";
+            const HEXIP = input.split(".");
+
+            /**
+	     * 6to4
+	     */
+            if (!args[1]) {
+                output += "6to4: ";
+            }
+            output += "2002:" + hexify(HEXIP[0]) + hexify(HEXIP[1]) + ":" + hexify(HEXIP[2]);
+            if (range) {
+                output += "00::/40\n";
+            } else {
+                output += hexify(HEXIP[3]) + "::/48\n";
+            }
+
+            /**
+	     * Mapped
+	     */
+            if (!args[1]) {
+                output += "IPv4 Mapped: ";
+            }
+            output += "::ffff:" + hexify(HEXIP[0]) + hexify(HEXIP[1]) + ":" + hexify(HEXIP[2]);
+            if (range) {
+                output += "00/120\n";
+            } else {
+                output += hexify(HEXIP[3]) + "\n";
+            }
+
+            /**
+	     * Translated
+	     */
+            if (!args[1]) {
+                output += "IPv4 Translated: ";
+            }
+            output += "::ffff:0:" + hexify(HEXIP[0]) + hexify(HEXIP[1]) + ":" + hexify(HEXIP[2]);
+            if (range) {
+                output += "00/120\n";
+            } else {
+                output += hexify(HEXIP[3]) + "\n";
+            }
+
+            /**
+	     * Nat64
+	     */
+            if (!args[1]) {
+                output += "Nat 64: ";
+            }
+            output += "64:ff9b::" + hexify(HEXIP[0]) + hexify(HEXIP[1]) + ":" + hexify(HEXIP[2]);
+            if (range) {
+                output += "00/120\n";
+            } else {
+                output += hexify(HEXIP[3]) + "\n";
+            }
+
+            return output;
+        }
+
+        /**
+	 * Convert MAC to EUI-64
+	 */
+        function macTransition(input) {
+            let output = "";
+            const MACPARTS = input.split(":");
+            if (!args[1]) {
+                output += "EUI-64 Interface ID: ";
+            }
+            const MAC = MACPARTS[0] + MACPARTS[1] + ":" + MACPARTS[2] + "ff:fe" + MACPARTS[3] + ":" + MACPARTS[4] + MACPARTS[5];
+            output += MAC.slice(0, 1) + XOR[MAC.slice(1, 2)] + MAC.slice(2);
+
+            return output;
+        }
+
+
+        /**
+	 * Convert IPv6 address to its original IPv4 or MAC address
+	 */
+        function unTransition(input) {
+            let output = "";
+            let hextets = "";
+
+            /**
+	     * 6to4
+	     */
+            if (input.startsWith("2002:")) {
+                if (!args[1]) {
+                    output += "IPv4: ";
+                }
+                output += String(intify(input.slice(5, 7))) + "." + String(intify(input.slice(7, 9)))+ "." + String(intify(input.slice(10, 12)))+ "." + String(intify(input.slice(12, 14))) + "\n";
+            } else if (input.startsWith("::ffff:") || input.startsWith("0000:0000:0000:0000:0000:ffff:") || input.startsWith("::ffff:0000:") || input.startsWith("0000:0000:0000:0000:ffff:0000:") || input.startsWith("64:ff9b::") || input.startsWith("0064:ff9b:0000:0000:0000:0000:")) {
+		/**
+		 * Mapped/Translated/Nat64
+		 */
+                hextets = /:([0-9a-z]{1,4}):[0-9a-z]{1,4}$/.exec(input)[1].padStart(4, "0") + /:([0-9a-z]{1,4})$/.exec(input)[1].padStart(4, "0");
+                if (!args[1]) {
+                    output += "IPv4: ";
+                }
+                output += intify(hextets.slice(-8, -7) +  hextets.slice(-7, -6)) + "." +intify(hextets.slice(-6, -5) +  hextets.slice(-5, -4)) + "." +intify(hextets.slice(-4, -3) +  hextets.slice(-3, -2)) + "." +intify(hextets.slice(-2, -1) +  hextets.slice(-1,)) + "\n";
+            } else if (input.slice(-12, -7).toUpperCase() === "FF:FE") {
+		/**
+		 * EUI-64
+		 */
+                if (!args[1]) {
+                    output += "Mac Address: ";
+                }
+                const MAC = (input.slice(-19, -17) + ":" + input.slice(-17, -15) + ":" + input.slice(-14, -12) + ":" + input.slice(-7, -5) + ":" + input.slice(-4, -2) + ":" + input.slice(-2,)).toUpperCase();
+                output += MAC.slice(0, 1) + XOR[MAC.slice(1, 2)] + MAC.slice(2) + "\n";
+            }
+
+            return output;
+        }
+
+
+        /**
+	 * Main
+	 */
+        let output = "";
+        let inputs = input.split("\n");
+        // Remove blank rows
+        inputs = inputs.filter(Boolean);
+
+        for (let i = 0; i < inputs.length; i++) {
+            // if ignore ranges is checked and input is a range, skip
+            if ((args[0] && !inputs[i].includes("/")) || (!args[0])) {
+                if (/^[0-9]{1,3}(?:\.[0-9]{1,3}){3}$/.test(inputs[i])) {
+                    output += ipTransition(inputs[i], false);
+                } else if (/\/24$/.test(inputs[i])) {
+                    output += ipTransition(inputs[i], true);
+                } else if (/^([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}$/.test(inputs[i])) {
+                    output += macTransition(inputs[i]);
+                } else if (/^((?:[0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|(?:[0-9a-fA-F]{1,4}:){1,7}:|(?:[0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|(?:[0-9a-fA-F]{1,4}:){1,5}(?::[0-9a-fA-F]{1,4}){1,2}|(?:[0-9a-fA-F]{1,4}:){1,4}(?::[0-9a-fA-F]{1,4}){1,3}|(?:[0-9a-fA-F]{1,4}:){1,3}(?::[0-9a-fA-F]{1,4}){1,4}|(?:[0-9a-fA-F]{1,4}:){1,2}(?::[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:(?:(?::[0-9a-fA-F]{1,4}){1,6})|:(?:(?::[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(?::[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(?:ffff(?::0{1,4}){0,1}:){0,1}(?:(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9])|(?:[0-9a-fA-F]{1,4}:){1,4}:(?:(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$/.test(inputs[i])) {
+                    output += unTransition(inputs[i]);
+                } else {
+                    output = "Enter compressed or expanded IPv6 address, IPv4 address or MAC Address.";
+                }
+            }
+        }
+
+        return output;
+    }
+
+}
+
+export default IPv6TransitionAddresses;

src/core/operations/JSONtoYAML.mjs

@@ -0,0 +1,46 @@
+/**
+ * @author ccarpo [ccarpo@gmx.net]
+ * @copyright Crown Copyright 2021
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import YAML from "yaml";
+
+/**
+ * JSON to YAML operation
+ */
+class JSONtoYAML extends Operation {
+
+    /**
+     * JSONtoYAML constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "JSON to YAML";
+        this.module = "Default";
+        this.description = "Format a JSON object into YAML";
+        this.infoURL = "https://en.wikipedia.org/wiki/YAML";
+        this.inputType = "JSON";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {JSON} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        try {
+            return YAML.stringify(input);
+        } catch (err) {
+            throw new OperationError("Test");
+        }
+    }
+
+}
+
+export default JSONtoYAML;

src/core/operations/JWTSign.mjs

@@ -36,6 +36,11 @@ class JWTSign extends Operation {
                 name: "Signing algorithm",
                 type: "option",
                 value: JWT_ALGORITHMS
+            },
+            {
+                name: "Header",
+                type: "text",
+                value: "{}"
             }
         ];
     }
@@ -46,11 +51,12 @@ class JWTSign extends Operation {
      * @returns {string}
      */
     run(input, args) {
-        const [key, algorithm] = args;
+        const [key, algorithm, header] = args;
 
         try {
             return jwt.sign(input, key, {
-                algorithm: algorithm === "None" ? "none" : algorithm
+                algorithm: algorithm === "None" ? "none" : algorithm,
+                header: JSON.parse(header || "{}")
             });
         } catch (err) {
             throw new OperationError(`Error: Have you entered the key correctly? The key should be either the secret for HMAC algorithms or the PEM-encoded private key for RSA and ECDSA.

src/core/operations/JWTVerify.mjs

@@ -22,7 +22,7 @@ class JWTVerify extends Operation {
 
         this.name = "JWT Verify";
         this.module = "Crypto";
-        this.description = "Verifies that a JSON Web Token is valid and has been signed with the provided secret / private key.<br><br>The key should be either the secret for HMAC algorithms or the PEM-encoded private key for RSA and ECDSA.";
+        this.description = "Verifies that a JSON Web Token is valid and has been signed with the provided secret / private key.<br><br>The key should be either the secret for HMAC algorithms or the PEM-encoded public key for RSA and ECDSA.";
         this.infoURL = "https://wikipedia.org/wiki/JSON_Web_Token";
         this.inputType = "string";
         this.outputType = "JSON";

src/core/operations/Jq.mjs

@@ -0,0 +1,57 @@
+/**
+ * @author zhzy0077 [zhzy0077@hotmail.com]
+ * @copyright Crown Copyright 2023
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import jq from "jq-web";
+
+/**
+ * jq operation
+ */
+class Jq extends Operation {
+
+    /**
+     * Jq constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Jq";
+        this.module = "Jq";
+        this.description = "jq is a lightweight and flexible command-line JSON processor.";
+        this.infoURL = "https://github.com/jqlang/jq";
+        this.inputType = "JSON";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Query",
+                type: "string",
+                value: ""
+            }
+        ];
+    }
+
+    /**
+     * @param {JSON} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const [query] = args;
+        let result;
+
+        try {
+            result = jq.json(input, query);
+        } catch (err) {
+            throw new OperationError(`Invalid jq expression: ${err.message}`);
+        }
+
+        return JSON.stringify(result);
+    }
+
+}
+
+export default Jq;

src/core/operations/LuhnChecksum.mjs

@@ -1,5 +1,6 @@
 /**
  * @author n1073645 [n1073645@gmail.com]
+ * @author k3ach [k3ach@proton.me]
  * @copyright Crown Copyright 2020
  * @license Apache-2.0
  */
@@ -20,39 +21,46 @@ class LuhnChecksum extends Operation {
 
         this.name = "Luhn Checksum";
         this.module = "Default";
-        this.description = "The Luhn algorithm, also known as the modulus 10 or mod 10 algorithm, is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers and Canadian Social Insurance Numbers.";
+        this.description = "The Luhn mod N algorithm using the english alphabet. The Luhn mod N algorithm is an extension to the Luhn algorithm (also known as mod 10 algorithm) that allows it to work with sequences of values in any even-numbered base. This can be useful when a check digit is required to validate an identification string composed of letters, a combination of letters and digits or any arbitrary set of N characters where N is divisible by 2.";
-        this.infoURL = "https://wikipedia.org/wiki/Luhn_algorithm";
+        this.infoURL = "https://en.wikipedia.org/wiki/Luhn_mod_N_algorithm";
         this.inputType = "string";
         this.outputType = "string";
-        this.args = [];
+        this.args = [
+            {
+                "name": "Radix",
+                "type": "number",
+                "value": 10
+            }
+        ];
     }
 
     /**
-     * Generates the Luhn Checksum from the input.
+     * Generates the Luhn checksum from the input.
      *
      * @param {string} inputStr
      * @returns {number}
      */
-    checksum(inputStr) {
+    checksum(inputStr, radix = 10) {
         let even = false;
         return inputStr.split("").reverse().reduce((acc, elem) => {
-            // Convert element to integer.
+            // Convert element to an integer based on the provided radix.
-            let temp = parseInt(elem, 10);
+            let temp = parseInt(elem, radix);
 
-            // If element is not an integer.
+            // If element is not a valid number in the given radix.
-            if (isNaN(temp))
+            if (isNaN(temp)) {
-                throw new OperationError("Character: " + elem + " is not a digit.");
+                throw new Error("Character: " + elem + " is not valid in radix " + radix + ".");
+            }
 
             // If element is in an even position
             if (even) {
-                // Double the element and add the quotient and remainder together.
+                // Double the element and sum the quotient and remainder.
-                temp = 2 * elem;
+                temp = 2 * temp;
-                temp = Math.floor(temp/10) + (temp % 10);
+                temp = Math.floor(temp / radix) + (temp % radix);
             }
 
             even = !even;
             return acc + temp;
-        }, 0)  % 10;
+        }, 0) % radix; // Use radix as the modulus base
     }
 
     /**
@@ -63,9 +71,20 @@ class LuhnChecksum extends Operation {
     run(input, args) {
         if (!input) return "";
 
-        const checkSum = this.checksum(input);
+        const radix = args[0];
-        let checkDigit = this.checksum(input + "0");
+
-        checkDigit = checkDigit === 0 ? 0 : (10-checkDigit);
+        if (radix < 2 || radix > 36) {
+            throw new OperationError("Error: Radix argument must be between 2 and 36");
+        }
+
+        if (radix % 2 !== 0) {
+            throw new OperationError("Error: Radix argument must be divisible by 2");
+        }
+
+        const checkSum = this.checksum(input, radix).toString(radix);
+        let checkDigit = this.checksum(input + "0", radix);
+        checkDigit = checkDigit === 0 ? 0 : (radix - checkDigit);
+        checkDigit = checkDigit.toString(radix);
 
         return `Checksum: ${checkSum}
 Checkdigit: ${checkDigit}

src/core/operations/MIMEDecoding.mjs

@@ -0,0 +1,171 @@
+/**
+ * @author mshwed [m@ttshwed.com]
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import Utils from "../Utils.mjs";
+import { fromHex } from "../lib/Hex.mjs";
+import { fromBase64 } from "../lib/Base64.mjs";
+import cptable from "codepage";
+
+/**
+ * MIME Decoding operation
+ */
+class MIMEDecoding extends Operation {
+
+    /**
+     * MIMEDecoding constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "MIME Decoding";
+        this.module = "Default";
+        this.description = "Enables the decoding of MIME message header extensions for non-ASCII text";
+        this.infoURL = "https://tools.ietf.org/html/rfc2047";
+        this.inputType = "byteArray";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const mimeEncodedText = Utils.byteArrayToUtf8(input);
+        const encodedHeaders = mimeEncodedText.replace(/\r\n/g, "\n");
+
+        const decodedHeader = this.decodeHeaders(encodedHeaders);
+
+        return decodedHeader;
+    }
+
+    /**
+     * Decode MIME header strings
+     *
+     * @param headerString
+     */
+    decodeHeaders(headerString) {
+        // No encoded words detected
+        let i = headerString.indexOf("=?");
+        if (i === -1) return headerString;
+
+        let decodedHeaders = headerString.slice(0, i);
+        let header = headerString.slice(i);
+
+        let isBetweenWords = false;
+        let start, cur, charset, encoding, j, end, text;
+        while (header.length > -1) {
+            start = header.indexOf("=?");
+            if (start === -1) break;
+            cur = start + "=?".length;
+
+            i = header.slice(cur).indexOf("?");
+            if (i === -1) break;
+
+            charset = header.slice(cur, cur + i);
+            cur += i + "?".length;
+
+            if (header.length < cur + "Q??=".length) break;
+
+            encoding = header[cur];
+            cur += 1;
+
+            if (header[cur] !== "?") break;
+
+            cur += 1;
+
+            j = header.slice(cur).indexOf("?=");
+            if (j === -1) break;
+
+            text = header.slice(cur, cur + j);
+            end = cur + j + "?=".length;
+
+            if (encoding.toLowerCase() === "b") {
+                text = fromBase64(text);
+            } else if (encoding.toLowerCase() === "q") {
+                text = this.parseQEncodedWord(text);
+            } else {
+                isBetweenWords = false;
+                decodedHeaders += header.slice(0, start + 2);
+                header = header.slice(start + 2);
+            }
+
+            if (start > 0 && (!isBetweenWords || header.slice(0, start).search(/\S/g) > -1)) {
+                decodedHeaders += header.slice(0, start);
+            }
+
+            decodedHeaders += this.convertFromCharset(charset, text);
+
+            header = header.slice(end);
+            isBetweenWords = true;
+        }
+
+        if (header.length > 0) {
+            decodedHeaders += header;
+        }
+
+        return decodedHeaders;
+    }
+
+    /**
+     * Converts decoded text for supported charsets.
+     * Supports UTF-8, US-ASCII, ISO-8859-*
+     *
+     * @param encodedWord
+     */
+    convertFromCharset(charset, encodedText) {
+        charset = charset.toLowerCase();
+        const parsedCharset = charset.split("-");
+
+        if (parsedCharset.length === 2 && parsedCharset[0] === "utf" && charset === "utf-8") {
+            return cptable.utils.decode(65001, encodedText);
+        } else if (parsedCharset.length === 2 && charset === "us-ascii") {
+            return cptable.utils.decode(20127, encodedText);
+        } else if (parsedCharset.length === 3 && parsedCharset[0] === "iso" && parsedCharset[1] === "8859") {
+            const isoCharset = parseInt(parsedCharset[2], 10);
+            if (isoCharset >= 1 && isoCharset <= 16) {
+                return cptable.utils.decode(28590 + isoCharset, encodedText);
+            }
+        }
+
+        throw new OperationError("Unhandled Charset");
+    }
+
+    /**
+     * Parses a Q encoded word
+     *
+     * @param encodedWord
+     */
+    parseQEncodedWord(encodedWord) {
+        let decodedWord = "";
+        for (let i = 0; i < encodedWord.length; i++) {
+            if (encodedWord[i] === "_") {
+                decodedWord += " ";
+            // Parse hex encoding
+            } else if (encodedWord[i] === "=") {
+                if ((i + 2) >= encodedWord.length) throw new OperationError("Incorrectly Encoded Word");
+                const decodedHex = Utils.byteArrayToChars(fromHex(encodedWord.substring(i + 1, i + 3)));
+                decodedWord += decodedHex;
+                i += 2;
+            } else if (
+                (encodedWord[i].charCodeAt(0) >= " ".charCodeAt(0) && encodedWord[i].charCodeAt(0) <= "~".charCodeAt(0)) ||
+                encodedWord[i] === "\n" ||
+                encodedWord[i] === "\r" ||
+                encodedWord[i] === "\t") {
+                decodedWord += encodedWord[i];
+            } else {
+                throw new OperationError("Incorrectly Encoded Word");
+            }
+        }
+
+        return decodedWord;
+    }
+}
+
+export default MIMEDecoding;

src/core/operations/OpticalCharacterRecognition.mjs

@@ -12,9 +12,10 @@ import { isImage } from "../lib/FileType.mjs";
 import { toBase64 } from "../lib/Base64.mjs";
 import { isWorkerEnvironment } from "../Utils.mjs";
 
-import process from "process";
 import { createWorker } from "tesseract.js";
 
+const OEM_MODES = ["Tesseract only", "LSTM only", "Tesseract/LSTM Combined"];
+
 /**
  * Optical Character Recognition operation
  */
@@ -37,6 +38,12 @@ class OpticalCharacterRecognition extends Operation {
                 name: "Show confidence",
                 type: "boolean",
                 value: true
+            },
+            {
+                name: "OCR Engine Mode",
+                type: "option",
+                value: OEM_MODES,
+                defaultIndex: 1
             }
         ];
     }
@@ -47,7 +54,7 @@ class OpticalCharacterRecognition extends Operation {
      * @returns {string}
      */
     async run(input, args) {
-        const [showConfidence] = args;
+        const [showConfidence, oemChoice] = args;
 
         if (!isWorkerEnvironment()) throw new OperationError("This operation only works in a browser");
 
@@ -56,12 +63,13 @@ class OpticalCharacterRecognition extends Operation {
             throw new OperationError("Unsupported file type (supported: jpg,png,pbm,bmp) or no file provided");
         }
 
-        const assetDir = isWorkerEnvironment() ? `${self.docURL}/assets/` : `${process.cwd()}/src/core/vendor/`;
+        const assetDir = `${self.docURL}/assets/`;
+        const oem = OEM_MODES.indexOf(oemChoice);
 
         try {
             self.sendStatusMessage("Spinning up Tesseract worker...");
             const image = `data:${type};base64,${toBase64(input)}`;
-            const worker = createWorker({
+            const worker = await createWorker("eng", oem, {
                 workerPath: `${assetDir}tesseract/worker.min.js`,
                 langPath: `${assetDir}tesseract/lang-data`,
                 corePath: `${assetDir}tesseract/tesseract-core.wasm.js`,
@@ -71,11 +79,6 @@ class OpticalCharacterRecognition extends Operation {
                     }
                 }
             });
-            await worker.load();
-            self.sendStatusMessage(`Loading English language pack...`);
-            await worker.loadLanguage("eng");
-            self.sendStatusMessage("Intialising Tesseract API...");
-            await worker.initialize("eng");
             self.sendStatusMessage("Finding text...");
             const result = await worker.recognize(image);
 

src/core/operations/PHPSerialize.mjs

@@ -0,0 +1,126 @@
+/**
+ * @author brun0ne [brunonblok@gmail.com]
+ * @copyright Crown Copyright 2023
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+
+/**
+ * PHP Serialize operation
+ */
+class PHPSerialize extends Operation {
+
+    /**
+     * PHPSerialize constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "PHP Serialize";
+        this.module = "Default";
+        this.description = "Performs PHP serialization on JSON data.<br><br>This function does not support <code>object</code> tags.<br><br>Since PHP doesn't distinguish dicts and arrays, this operation is not always symmetric to <code>PHP Deserialize</code>.<br><br>Example:<br><code>[5,&quot;abc&quot;,true]</code><br>becomes<br><code>a:3:{i:0;i:5;i:1;s:3:&quot;abc&quot;;i:2;b:1;}<code>";
+        this.infoURL = "https://www.phpinternalsbook.com/php5/classes_objects/serialization.html";
+        this.inputType = "JSON";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {JSON} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        /**
+         * Determines if a number is an integer
+         * @param {number} value
+         * @returns {boolean}
+         */
+        function isInteger(value) {
+            return typeof value === "number" && parseInt(value.toString(), 10) === value;
+        }
+
+        /**
+         * Serialize basic types
+         * @param {string | number | boolean} content
+         * @returns {string}
+         */
+        function serializeBasicTypes(content) {
+            const basicTypes = {
+                "string": "s",
+                "integer": "i",
+                "float": "d",
+                "boolean": "b"
+            };
+            /**
+             * Booleans
+             * cast to 0 or 1
+             */
+            if (typeof content === "boolean") {
+                return `${basicTypes.boolean}:${content ? 1 : 0}`;
+            }
+            /* Numbers */
+            if (typeof content === "number") {
+                if (isInteger(content)) {
+                    return `${basicTypes.integer}:${content.toString()}`;
+                } else {
+                    return `${basicTypes.float}:${content.toString()}`;
+                }
+            }
+            /* Strings */
+            if (typeof content === "string")
+                return `${basicTypes.string}:${content.length}:"${content}"`;
+
+            /** This should be unreachable */
+            throw new OperationError(`Encountered a non-implemented type: ${typeof content}`);
+        }
+
+        /**
+         * Recursively serialize
+         * @param {*} object
+         * @returns {string}
+         */
+        function serialize(object) {
+            /* Null */
+            if (object == null) {
+                return `N;`;
+            }
+
+            if (typeof object !== "object") {
+                /* Basic types */
+                return `${serializeBasicTypes(object)};`;
+            } else if (object instanceof Array) {
+                /* Arrays */
+                const serializedElements = [];
+
+                for (let i = 0; i < object.length; i++) {
+                    serializedElements.push(`${serialize(i)}${serialize(object[i])}`);
+                }
+
+                return `a:${object.length}:{${serializedElements.join("")}}`;
+            } else if (object instanceof Object) {
+                /**
+                 * Objects
+                 * Note: the output cannot be guaranteed to be in the same order as the input
+                 */
+                const serializedElements = [];
+                const keys = Object.keys(object);
+
+                for (const key of keys) {
+                    serializedElements.push(`${serialize(key)}${serialize(object[key])}`);
+                }
+
+                return `a:${keys.length}:{${serializedElements.join("")}}`;
+            }
+
+            /** This should be unreachable */
+            throw new OperationError(`Encountered a non-implemented type: ${typeof object}`);
+        }
+
+        return serialize(input);
+    }
+}
+
+export default PHPSerialize;

src/core/operations/ParseTLSRecord.mjs

@@ -0,0 +1,884 @@
+/**
+ * @author c65722 []
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import {toHexFast} from "../lib/Hex.mjs";
+import {objToTable} from "../lib/Protocol.mjs";
+import Stream from "../lib/Stream.mjs";
+
+/**
+ * Parse TLS record operation.
+ */
+class ParseTLSRecord extends Operation {
+
+    /**
+     * ParseTLSRecord constructor.
+     */
+    constructor() {
+        super();
+
+        this.name = "Parse TLS record";
+        this.module = "Default";
+        this.description = "Parses one or more TLS records";
+        this.infoURL = "https://wikipedia.org/wiki/Transport_Layer_Security";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "json";
+        this.presentType = "html";
+        this.args = [];
+        this._handshakeParser = new HandshakeParser();
+        this._contentTypes = new Map();
+
+        for (const key in ContentType) {
+            this._contentTypes[ContentType[key]] = key.toString().toLocaleLowerCase();
+        }
+    }
+
+    /**
+     * @param {ArrayBuffer} input - Stream, containing one or more raw TLS Records.
+     * @param {Object[]} args
+     * @returns {Object[]} Array of Object representations of TLS Records contained within input.
+     */
+    run(input, args) {
+        const s = new Stream(new Uint8Array(input));
+
+        const output = [];
+
+        while (s.hasMore()) {
+            const record = this._readRecord(s);
+            if (record) {
+                output.push(record);
+            }
+        }
+
+        return output;
+    }
+
+    /**
+     * Reads a TLS Record from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw TLS Record.
+     * @returns {Object} Object representation of TLS Record.
+     */
+    _readRecord(input) {
+        const RECORD_HEADER_LEN = 5;
+
+        if (input.position + RECORD_HEADER_LEN > input.length) {
+            input.moveTo(input.length);
+
+            return null;
+        }
+
+        const type = input.readInt(1);
+        const typeString = this._contentTypes[type] ?? type.toString();
+        const version = "0x" + toHexFast(input.getBytes(2));
+        const length = input.readInt(2);
+        const content = input.getBytes(length);
+        const truncated = content.length < length;
+
+        const recordHeader = new RecordHeader(typeString, version, length, truncated);
+
+        if (!content.length) {
+            return {...recordHeader};
+        }
+
+        if (type === ContentType.HANDSHAKE) {
+            return this._handshakeParser.parse(new Stream(content), recordHeader);
+        }
+
+        const record = {...recordHeader};
+        record.value = "0x" + toHexFast(content);
+
+        return record;
+    }
+
+    /**
+     * Displays the parsed TLS Records in a tabular style.
+     *
+     * @param {Object[]} data - Array of Object representations of the TLS Records.
+     * @returns {html} HTML representation of TLS Records contained within data.
+     */
+    present(data) {
+        return data.map(r => objToTable(r)).join("\n\n");
+    }
+}
+
+export default ParseTLSRecord;
+
+/**
+ * Repesents the known values of type field of a TLS Record header.
+ */
+const ContentType = Object.freeze({
+    CHANGE_CIPHER_SPEC: 20,
+    ALERT: 21,
+    HANDSHAKE: 22,
+    APPLICATION_DATA: 23,
+});
+
+/**
+ * Represents a TLS Record header
+ */
+class RecordHeader {
+    /**
+     * RecordHeader cosntructor.
+     *
+     * @param {string} type - String representation of TLS Record type field.
+     * @param {string} version - Hex representation of TLS Record version field.
+     * @param {int} length - Length of TLS Record.
+     * @param {bool} truncated - Is TLS Record truncated.
+     */
+    constructor(type, version, length, truncated) {
+        this.type = type;
+        this.version = version;
+        this.length = length;
+
+        if (truncated) {
+            this.truncated = true;
+        }
+    }
+}
+
+/**
+ * Parses TLS Handshake messages.
+ */
+class HandshakeParser {
+
+    /**
+     * HandshakeParser constructor.
+     */
+    constructor() {
+        this._clientHelloParser = new ClientHelloParser();
+        this._serverHelloParser = new ServerHelloParser();
+        this._newSessionTicketParser = new NewSessionTicketParser();
+        this._certificateParser = new CertificateParser();
+        this._certificateRequestParser = new CertificateRequestParser();
+        this._certificateVerifyParser = new CertificateVerifyParser();
+        this._handshakeTypes = new Map();
+
+        for (const key in HandshakeType) {
+            this._handshakeTypes[HandshakeType[key]] = key.toString().toLowerCase();
+        }
+    }
+
+    /**
+     * Parses a single TLS handshake message.
+     *
+     * @param {Stream} input - Stream, containing a raw Handshake message.
+     * @param {RecordHeader} recordHeader - TLS Record header.
+     * @returns {Object} Object representation of Handshake.
+     */
+    parse(input, recordHeader) {
+        const output = {...recordHeader};
+
+        if (!input.hasMore()) {
+            return output;
+        }
+
+        const handshakeType = input.readInt(1);
+        output.handshakeType = this._handshakeTypes[handshakeType] ?? handshakeType.toString();
+
+        if (input.position + 3 > input.length) {
+            input.moveTo(input.length);
+
+            return output;
+        }
+
+        const handshakeLength = input.readInt(3);
+
+        if (handshakeLength + 4 !== recordHeader.length) {
+            input.moveTo(0);
+
+            output.handshakeType = this._handshakeTypes[HandshakeType.FINISHED];
+            output.handshakeValue = "0x" + toHexFast(input.bytes);
+
+            return output;
+        }
+
+        const content = input.getBytes(handshakeLength);
+        if (!content.length) {
+            return output;
+        }
+
+        switch (handshakeType) {
+            case HandshakeType.CLIENT_HELLO:
+                return {...output, ...this._clientHelloParser.parse(new Stream(content))};
+            case HandshakeType.SERVER_HELLO:
+                return {...output, ...this._serverHelloParser.parse(new Stream(content))};
+            case HandshakeType.NEW_SESSION_TICKET:
+                return {...output, ...this._newSessionTicketParser.parse(new Stream(content))};
+            case HandshakeType.CERTIFICATE:
+                return {...output, ...this._certificateParser.parse(new Stream(content))};
+            case HandshakeType.CERTIFICATE_REQUEST:
+                return {...output, ...this._certificateRequestParser.parse(new Stream(content))};
+            case HandshakeType.CERTIFICATE_VERIFY:
+                return {...output, ...this._certificateVerifyParser.parse(new Stream(content))};
+            default:
+                output.handshakeValue = "0x" + toHexFast(content);
+        }
+
+        return output;
+    }
+}
+
+/**
+ * Represents the known values of the msg_type field of a TLS Handshake message.
+ */
+const HandshakeType = Object.freeze({
+    HELLO_REQUEST: 0,
+    CLIENT_HELLO: 1,
+    SERVER_HELLO: 2,
+    NEW_SESSION_TICKET: 4,
+    CERTIFICATE: 11,
+    SERVER_KEY_EXCHANGE: 12,
+    CERTIFICATE_REQUEST: 13,
+    SERVER_HELLO_DONE: 14,
+    CERTIFICATE_VERIFY: 15,
+    CLIENT_KEY_EXCHANGE: 16,
+    FINISHED: 20,
+});
+
+/**
+ * Parses TLS Handshake ClientHello messages.
+ */
+class ClientHelloParser {
+
+    /**
+     * ClientHelloParser constructor.
+     */
+    constructor() {
+        this._extensionsParser = new ExtensionsParser();
+    }
+
+    /**
+     * Parses a single TLS Handshake ClientHello message.
+     *
+     * @param {Stream} input - Stream, containing a raw ClientHello message.
+     * @returns {Object} Object representation of ClientHello.
+     */
+    parse(input) {
+        const output = {};
+
+        output.clientVersion =  this._readClientVersion(input);
+        output.random = this._readRandom(input);
+
+        const sessionID = this._readSessionID(input);
+        if (sessionID) {
+            output.sessionID = sessionID;
+        }
+
+        output.cipherSuites = this._readCipherSuites(input);
+        output.compressionMethods = this._readCompressionMethods(input);
+        output.extensions = this._readExtensions(input);
+
+        return output;
+    }
+
+    /**
+     * Reads the client_version field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ClientHello message, with position before client_version field.
+     * @returns {string} Hex representation of client_version.
+     */
+    _readClientVersion(input) {
+        return readBytesAsHex(input, 2);
+    }
+
+    /**
+     * Reads the random field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ClientHello message, with position before random field.
+     * @returns {string} Hex representation of random.
+     */
+    _readRandom(input) {
+        return readBytesAsHex(input, 32);
+    }
+
+    /**
+     * Reads the session_id field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ClientHello message, with position before session_id length field.
+     * @returns {string} Hex representation of session_id, or empty string if session_id not present.
+     */
+    _readSessionID(input) {
+        return readSizePrefixedBytesAsHex(input, 1);
+    }
+
+    /**
+     * Reads the cipher_suites field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ClientHello message, with position before cipher_suites length field.
+     * @returns {Object} Object represention of cipher_suites field.
+     */
+    _readCipherSuites(input) {
+        const output = {};
+
+        output.length = input.readInt(2);
+        if (!output.length) {
+            return {};
+        }
+
+        const cipherSuites = new Stream(input.getBytes(output.length));
+        if (cipherSuites.length < output.length) {
+            output.truncated = true;
+        }
+
+        output.values = [];
+
+        while (cipherSuites.hasMore()) {
+            const cipherSuite = readBytesAsHex(cipherSuites, 2);
+            if (cipherSuite) {
+                output.values.push(cipherSuite);
+            }
+        }
+
+        return output;
+    }
+
+    /**
+     * Reads the compression_methods field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ClientHello message, with position before compression_methods length field.
+     * @returns {Object} Object representation of compression_methods field.
+     */
+    _readCompressionMethods(input) {
+        const output = {};
+
+        output.length = input.readInt(1);
+        if (!output.length) {
+            return {};
+        }
+
+        const compressionMethods = new Stream(input.getBytes(output.length));
+        if (compressionMethods.length < output.length) {
+            output.truncated = true;
+        }
+
+        output.values = [];
+
+        while (compressionMethods.hasMore()) {
+            const compressionMethod = readBytesAsHex(compressionMethods, 1);
+            if (compressionMethod) {
+                output.values.push(compressionMethod);
+            }
+        }
+
+        return output;
+    }
+
+    /**
+     * Reads the extensions field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ClientHello message, with position before extensions length field.
+     * @returns {Object} Object representations of extensions field.
+     */
+    _readExtensions(input) {
+        const output = {};
+
+        output.length = input.readInt(2);
+        if (!output.length) {
+            return {};
+        }
+
+        const extensions = new Stream(input.getBytes(output.length));
+        if (extensions.length < output.length) {
+            output.truncated = true;
+        }
+
+        output.values = this._extensionsParser.parse(extensions);
+
+        return output;
+    }
+}
+
+/**
+ * Parses TLS Handshake ServeHello messages.
+ */
+class ServerHelloParser {
+
+    /**
+     * ServerHelloParser constructor.
+     */
+    constructor() {
+        this._extensionsParser = new ExtensionsParser();
+    }
+
+    /**
+     *  Parses a single TLS Handshake ServerHello message.
+     *
+     * @param {Stream} input - Stream, containing a raw ServerHello message.
+     * @return {Object} Object representation of ServerHello.
+     */
+    parse(input) {
+        const output = {};
+
+        output.serverVersion = this._readServerVersion(input);
+        output.random = this._readRandom(input);
+
+        const sessionID = this._readSessionID(input);
+        if (sessionID) {
+            output.sessionID = sessionID;
+        }
+
+        output.cipherSuite =  this._readCipherSuite(input);
+        output.compressionMethod = this._readCompressionMethod(input);
+        output.extensions = this._readExtensions(input);
+
+        return output;
+    }
+
+    /**
+     * Reads the server_version field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ServerHello message, with position before server_version field.
+     * @returns {string} Hex representation of server_version.
+     */
+    _readServerVersion(input) {
+        return readBytesAsHex(input, 2);
+    }
+
+    /**
+     * Reads the random field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ServerHello message, with position before random field.
+     * @returns {string} Hex representation of random.
+     */
+    _readRandom(input) {
+        return readBytesAsHex(input, 32);
+    }
+
+    /**
+     * Reads the session_id field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ServertHello message, with position before session_id length field.
+     * @returns {string} Hex representation of session_id, or empty string if session_id not present.
+     */
+    _readSessionID(input) {
+        return readSizePrefixedBytesAsHex(input, 1);
+    }
+
+    /**
+     * Reads the cipher_suite field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ServerHello message, with position before cipher_suite field.
+     * @returns {string} Hex represention of cipher_suite.
+     */
+    _readCipherSuite(input) {
+        return readBytesAsHex(input, 2);
+    }
+
+    /**
+     * Reads the compression_method field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ServerHello message, with position before compression_method field.
+     * @returns {string} Hex represention of compression_method.
+     */
+    _readCompressionMethod(input) {
+        return readBytesAsHex(input, 1);
+    }
+
+    /**
+     * Reads the extensions field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw ServerHello message, with position before extensions length field.
+     * @returns {Object} Object representation of extensions field.
+     */
+    _readExtensions(input) {
+        const output = {};
+
+        output.length = input.readInt(2);
+        if (!output.length) {
+            return {};
+        }
+
+        const extensions = new Stream(input.getBytes(output.length));
+        if (extensions.length < output.length) {
+            output.truncated = true;
+        }
+
+        output.values = this._extensionsParser.parse(extensions);
+
+        return output;
+    }
+}
+
+/**
+ * Parses TLS Handshake Hello Extensions.
+ */
+class ExtensionsParser {
+
+    /**
+     * Parses a stream of TLS Handshake Hello Extensions.
+     *
+     * @param {Stream} input - Stream, containing multiple raw Extensions, with position before first extension length field.
+     * @returns {Object[]} Array of Object representations of Extensions contained within input.
+     */
+    parse(input) {
+        const output = [];
+
+        while (input.hasMore()) {
+            const extension = this._readExtension(input);
+            if (extension) {
+                output.push(extension);
+            }
+        }
+
+        return output;
+    }
+
+    /**
+     * Reads a single Extension from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a list of Extensions, with position before the length field of the next Extension.
+     * @returns {Object} Object representation of Extension.
+     */
+    _readExtension(input) {
+        const output = {};
+
+        if (input.position + 4 > input.length) {
+            input.moveTo(input.length);
+            return null;
+        }
+
+        output.type = "0x" + toHexFast(input.getBytes(2));
+        output.length = input.readInt(2);
+        if (!output.length) {
+            return output;
+        }
+
+        const value = input.getBytes(output.length);
+        if (!value || value.length !== output.length) {
+            output.truncated = true;
+        }
+
+        if (value && value.length) {
+            output.value = "0x" + toHexFast(value);
+        }
+
+        return output;
+    }
+}
+
+/**
+ * Parses TLS Handshake NewSessionTicket messages.
+ */
+class NewSessionTicketParser {
+
+    /**
+     * Parses a single TLS Handshake NewSessionTicket message.
+     *
+     * @param {Stream} input - Stream, containing a raw NewSessionTicket message.
+     * @returns {Object} Object representation of NewSessionTicket.
+     */
+    parse(input) {
+        return {
+            ticketLifetimeHint: this._readTicketLifetimeHint(input),
+            ticket: this._readTicket(input),
+        };
+    }
+
+    /**
+     * Reads the ticket_lifetime_hint field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw NewSessionTicket message, with position before ticket_lifetime_hint field.
+     * @returns {string} Lifetime hint, in seconds.
+     */
+    _readTicketLifetimeHint(input) {
+        if (input.position + 4 > input.length) {
+            input.moveTo(input.length);
+            return "";
+        }
+
+        return input.readInt(4) + "s";
+    }
+
+    /**
+     * Reads the ticket field fromt the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw NewSessionTicket message, with position before ticket length field.
+     * @returns {string} Hex representation of ticket.
+     */
+    _readTicket(input) {
+        return readSizePrefixedBytesAsHex(input, 2);
+    }
+}
+
+/**
+ * Parses TLS Handshake Certificate messages.
+ */
+class CertificateParser {
+
+    /**
+     * Parses a single TLS Handshake Certificate message.
+     *
+     * @param {Stream} input - Stream, containing a raw Certificate message.
+     * @returns {Object} Object representation of Certificate.
+     */
+    parse(input) {
+        const output = {};
+
+        output.certificateList = this._readCertificateList(input);
+
+        return output;
+    }
+
+    /**
+     * Reads the certificate_list field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw Certificate message, with position before certificate_list length field.
+     * @returns {string[]} Array of strings, each containing a hex representation of a value within the certificate_list field.
+     */
+    _readCertificateList(input) {
+        const output = {};
+
+        if (input.position + 3 > input.length) {
+            input.moveTo(input.length);
+            return output;
+        }
+
+        output.length = input.readInt(3);
+        if (!output.length) {
+            return output;
+        }
+
+        const certificates = new Stream(input.getBytes(output.length));
+        if (certificates.length < output.length) {
+            output.truncated = true;
+        }
+
+        output.values = [];
+
+        while (certificates.hasMore()) {
+            const certificate = this._readCertificate(certificates);
+            if (certificate) {
+                output.values.push(certificate);
+            }
+        }
+
+        return output;
+    }
+
+    /**
+     * Reads a single certificate from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a list of certificicates, with position before the length field of the next certificate.
+     * @returns {string} Hex representation of certificate.
+     */
+    _readCertificate(input) {
+        return readSizePrefixedBytesAsHex(input, 3);
+    }
+}
+
+/**
+ * Parses TLS Handshake CertificateRequest messages.
+ */
+class CertificateRequestParser {
+
+    /**
+     * Parses a single TLS Handshake CertificateRequest message.
+     *
+     * @param {Stream} input - Stream, containing a raw CertificateRequest message.
+     * @return {Object} Object representation of CertificateRequest.
+     */
+    parse(input) {
+        const output = {};
+
+        output.certificateTypes = this._readCertificateTypes(input);
+        output.supportedSignatureAlgorithms = this._readSupportedSignatureAlgorithms(input);
+
+        const certificateAuthorities = this._readCertificateAuthorities(input);
+        if (certificateAuthorities.length) {
+            output.certificateAuthorities = certificateAuthorities;
+        }
+
+        return output;
+    }
+
+    /**
+     * Reads the certificate_types field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw CertificateRequest message, with position before certificate_types length field.
+     * @return {string[]} Array of strings, each containing a hex representation of a value within the certificate_types field.
+     */
+    _readCertificateTypes(input) {
+        const output = {};
+
+        output.length = input.readInt(1);
+        if (!output.length) {
+            return {};
+        }
+
+        const certificateTypes = new Stream(input.getBytes(output.length));
+        if (certificateTypes.length < output.length) {
+            output.truncated = true;
+        }
+
+        output.values = [];
+
+        while (certificateTypes.hasMore()) {
+            const certificateType = readBytesAsHex(certificateTypes, 1);
+            if (certificateType) {
+                output.values.push(certificateType);
+            }
+        }
+
+        return output;
+    }
+
+    /**
+     * Reads the supported_signature_algorithms field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw CertificateRequest message, with position before supported_signature_algorithms length field.
+     * @returns {string[]} Array of strings, each containing a hex representation of a value within the supported_signature_algorithms field.
+     */
+    _readSupportedSignatureAlgorithms(input) {
+        const output = {};
+
+        output.length = input.readInt(2);
+        if (!output.length) {
+            return {};
+        }
+
+        const signatureAlgorithms = new Stream(input.getBytes(output.length));
+        if (signatureAlgorithms.length < output.length) {
+            output.truncated = true;
+        }
+
+        output.values = [];
+
+        while (signatureAlgorithms.hasMore()) {
+            const signatureAlgorithm = readBytesAsHex(signatureAlgorithms, 2);
+            if (signatureAlgorithm) {
+                output.values.push(signatureAlgorithm);
+            }
+        }
+
+        return output;
+    }
+
+    /**
+     * Reads the certificate_authorities field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw CertificateRequest message, with position before certificate_authorities length field.
+     * @returns {string[]} Array of strings, each containing a hex representation of a value within the certificate_authorities field.
+     */
+    _readCertificateAuthorities(input) {
+        const output = {};
+
+        output.length = input.readInt(2);
+        if (!output.length) {
+            return {};
+        }
+
+        const certificateAuthorities = new Stream(input.getBytes(output.length));
+        if (certificateAuthorities.length < output.length) {
+            output.truncated = true;
+        }
+
+        output.values = [];
+
+        while (certificateAuthorities.hasMore()) {
+            const certificateAuthority = this._readCertificateAuthority(certificateAuthorities);
+            if (certificateAuthority) {
+                output.values.push(certificateAuthority);
+            }
+        }
+
+        return output;
+    }
+
+    /**
+     * Reads a single certificate authority from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a list of raw certificate authorities, with position before the length field of the next certificate authority.
+     * @returns {string} Hex representation of certificate authority.
+     */
+    _readCertificateAuthority(input) {
+        return readSizePrefixedBytesAsHex(input, 2);
+    }
+}
+
+/**
+ * Parses TLS Handshake CertificateVerify messages.
+ */
+class CertificateVerifyParser {
+
+    /**
+     * Parses a single CertificateVerify Message.
+     *
+     * @param {Stream} input - Stream, containing a raw CertificateVerify message.
+     * @returns {Object} Object representation of CertificateVerify.
+     */
+    parse(input) {
+        return {
+            algorithmHash: this._readAlgorithmHash(input),
+            algorithmSignature: this._readAlgorithmSignature(input),
+            signature: this._readSignature(input),
+        };
+    }
+
+    /**
+     * Reads the algorithm.hash field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw CertificateVerify message, with position before algorithm.hash field.
+     * @return {string} Hex representation of hash algorithm.
+     */
+    _readAlgorithmHash(input) {
+        return readBytesAsHex(input, 1);
+    }
+
+    /**
+     * Reads the algorithm.signature field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw CertificateVerify message, with position before algorithm.signature field.
+     * @return {string} Hex representation of signature algorithm.
+     */
+    _readAlgorithmSignature(input) {
+        return readBytesAsHex(input, 1);
+    }
+
+    /**
+     * Reads the signature field from the following bytes in the provided Stream.
+     *
+     * @param {Stream} input - Stream, containing a raw CertificateVerify message, with position before signature field.
+     * @return {string} Hex representation of signature.
+     */
+    _readSignature(input) {
+        return readSizePrefixedBytesAsHex(input, 2);
+    }
+}
+
+/**
+ * Read the following size prefixed bytes from the provided Stream, and reuturn as a hex string.
+ *
+ * @param {Stream} input - Stream to read from.
+ * @param {int} sizePrefixLength - Length of the size prefix field.
+ * @returns {string} Hex representation of bytes read from Stream, empty string is returned if
+ *                   field cannot be read in full.
+ */
+function readSizePrefixedBytesAsHex(input, sizePrefixLength) {
+    const length = input.readInt(sizePrefixLength);
+    if (!length) {
+        return "";
+    }
+
+    return readBytesAsHex(input, length);
+}
+
+/**
+ * Read n bytes from the provided Stream, and return as a hex string.
+ *
+ * @param {Stream} input - Stream to read from.
+ * @param {int} n - Number of bytes to read.
+ * @returns {string} Hex representation of bytes read from Stream, or empty string if field cannot
+ *                   be read in full.
+ */
+function readBytesAsHex(input, n) {
+    const bytes = input.getBytes(n);
+    if (!bytes || bytes.length !== n) {
+        return "";
+    }
+
+    return "0x" + toHexFast(bytes);
+}

src/core/operations/ParseX509CRL.mjs

@@ -0,0 +1,391 @@
+/**
+ * @author robinsandhu
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import r from "jsrsasign";
+import Operation from "../Operation.mjs";
+import { fromBase64 } from "../lib/Base64.mjs";
+import { toHex } from "../lib/Hex.mjs";
+import { formatDnObj } from "../lib/PublicKey.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import Utils from "../Utils.mjs";
+
+/**
+ * Parse X.509 CRL operation
+ */
+class ParseX509CRL extends Operation {
+
+    /**
+     * ParseX509CRL constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Parse X.509 CRL";
+        this.module = "PublicKey";
+        this.description = "Parse Certificate Revocation List (CRL)";
+        this.infoURL = "https://wikipedia.org/wiki/Certificate_revocation_list";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Input format",
+                "type": "option",
+                "value": ["PEM", "DER Hex", "Base64", "Raw"]
+            }
+        ];
+        this.checks = [
+            {
+                "pattern": "^-+BEGIN X509 CRL-+\\r?\\n[\\da-z+/\\n\\r]+-+END X509 CRL-+\\r?\\n?$",
+                "flags": "i",
+                "args": ["PEM"]
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string} Human-readable description of a Certificate Revocation List (CRL).
+     */
+    run(input, args) {
+        if (!input.length) {
+            return "No input";
+        }
+
+        const inputFormat = args[0];
+
+        let undefinedInputFormat = false;
+        try {
+            switch (inputFormat) {
+                case "DER Hex":
+                    input = input.replace(/\s/g, "").toLowerCase();
+                    break;
+                case "PEM":
+                    break;
+                case "Base64":
+                    input = toHex(fromBase64(input, null, "byteArray"), "");
+                    break;
+                case "Raw":
+                    input = toHex(Utils.strToArrayBuffer(input), "");
+                    break;
+                default:
+                    undefinedInputFormat = true;
+            }
+        } catch (e) {
+            throw "Certificate load error (non-certificate input?)";
+        }
+        if (undefinedInputFormat) throw "Undefined input format";
+
+        const crl = new r.X509CRL(input);
+
+        let out = `Certificate Revocation List (CRL):
+    Version: ${crl.getVersion() === null ? "1 (0x0)" : "2 (0x1)"}
+    Signature Algorithm: ${crl.getSignatureAlgorithmField()}
+    Issuer:\n${formatDnObj(crl.getIssuer(), 8)}
+    Last Update: ${generalizedDateTimeToUTC(crl.getThisUpdate())}
+    Next Update: ${generalizedDateTimeToUTC(crl.getNextUpdate())}\n`;
+
+        if (crl.getParam().ext !== undefined) {
+            out += `\tCRL extensions:\n${formatCRLExtensions(crl.getParam().ext, 8)}\n`;
+        }
+
+        out += `Revoked Certificates:\n${formatRevokedCertificates(crl.getRevCertArray(), 4)}
+Signature Value:\n${formatCRLSignature(crl.getSignatureValueHex(), 8)}`;
+
+        return out;
+    }
+}
+
+/**
+ * Generalized date time string to UTC.
+ * @param {string} datetime
+ * @returns UTC datetime string.
+ */
+function generalizedDateTimeToUTC(datetime) {
+    // Ensure the string is in the correct format
+    if (!/^\d{12,14}Z$/.test(datetime)) {
+        throw new OperationError(`failed to format datetime string ${datetime}`);
+    }
+
+    // Extract components
+    let centuary = "20";
+    if (datetime.length === 15) {
+        centuary = datetime.substring(0, 2);
+        datetime = datetime.slice(2);
+    }
+    const year = centuary + datetime.substring(0, 2);
+    const month = datetime.substring(2, 4);
+    const day = datetime.substring(4, 6);
+    const hour = datetime.substring(6, 8);
+    const minute = datetime.substring(8, 10);
+    const second = datetime.substring(10, 12);
+
+    // Construct ISO 8601 format string
+    const isoString = `${year}-${month}-${day}T${hour}:${minute}:${second}Z`;
+
+    // Parse using standard Date object
+    const isoDateTime = new Date(isoString);
+
+    return isoDateTime.toUTCString();
+}
+
+/**
+ * Format CRL extensions.
+ * @param {r.ExtParam[] | undefined} extensions
+ * @param {Number} indent
+ * @returns Formatted string detailing CRL extensions.
+ */
+function formatCRLExtensions(extensions, indent) {
+    if (Array.isArray(extensions) === false || extensions.length === 0) {
+        return indentString(`No CRL extensions.`, indent);
+    }
+
+    let out = ``;
+
+    extensions.sort((a, b) => {
+        if (!Object.hasOwn(a, "extname") || !Object.hasOwn(b, "extname")) {
+            return 0;
+        }
+        if (a.extname < b.extname) {
+            return -1;
+        } else if (a.extname === b.extname) {
+            return 0;
+        } else {
+            return 1;
+        }
+    });
+
+    extensions.forEach((ext) => {
+        if (!Object.hasOwn(ext, "extname")) {
+            throw new OperationError(`CRL entry extension object missing 'extname' key: ${ext}`);
+        }
+        switch (ext.extname) {
+            case "authorityKeyIdentifier":
+                out += `X509v3 Authority Key Identifier:\n`;
+                if (Object.hasOwn(ext, "kid")) {
+                    out += `\tkeyid:${colonDelimitedHexFormatString(ext.kid.hex.toUpperCase())}\n`;
+                }
+                if (Object.hasOwn(ext, "issuer")) {
+                    out += `\tDirName:${ext.issuer.str}\n`;
+                }
+                if (Object.hasOwn(ext, "sn")) {
+                    out += `\tserial:${colonDelimitedHexFormatString(ext.sn.hex.toUpperCase())}\n`;
+                }
+                break;
+            case "cRLDistributionPoints":
+                out += `X509v3 CRL Distribution Points:\n`;
+                ext.array.forEach((distPoint) => {
+                    const fullName = `Full Name:\n${formatGeneralNames(distPoint.dpname.full, 4)}`;
+                    out += indentString(fullName, 4) + "\n";
+                });
+                break;
+            case "cRLNumber":
+                if (!Object.hasOwn(ext, "num")) {
+                    throw new OperationError(`'cRLNumber' CRL entry extension missing 'num' key: ${ext}`);
+                }
+                out += `X509v3 CRL Number:\n\t${ext.num.hex.toUpperCase()}\n`;
+                break;
+            case "issuerAltName":
+                out += `X509v3 Issuer Alternative Name:\n${formatGeneralNames(ext.array, 4)}\n`;
+                break;
+            default:
+                out += `${ext.extname}:\n`;
+                out += `\tUnsupported CRL extension. Try openssl CLI.\n`;
+                break;
+        }
+    });
+
+    return indentString(chop(out), indent);
+}
+
+/**
+ * Format general names array.
+ * @param {Object[]} names
+ * @returns Multi-line formatted string describing all supported general name types.
+ */
+function formatGeneralNames(names, indent) {
+    let out = ``;
+
+    names.forEach((name) => {
+        const key = Object.keys(name)[0];
+
+        switch (key) {
+            case "ip":
+                out += `IP:${name.ip}\n`;
+                break;
+            case "dns":
+                out += `DNS:${name.dns}\n`;
+                break;
+            case "uri":
+                out += `URI:${name.uri}\n`;
+                break;
+            case "rfc822":
+                out += `EMAIL:${name.rfc822}\n`;
+                break;
+            case "dn":
+                out += `DIR:${name.dn.str}\n`;
+                break;
+            case "other":
+                out += `OtherName:${name.other.oid}::${Object.values(name.other.value)[0].str}\n`;
+                break;
+            default:
+                out += `${key}: unsupported general name type`;
+                break;
+        }
+    });
+
+    return indentString(chop(out), indent);
+}
+
+/**
+ * Colon-delimited hex formatted output.
+ * @param {string} hexString Hex String
+ * @returns String representing input hex string with colon delimiter.
+ */
+function colonDelimitedHexFormatString(hexString) {
+    if (hexString.length % 2 !== 0) {
+        hexString = "0" + hexString;
+    }
+
+    return chop(hexString.replace(/(..)/g, "$&:"));
+}
+
+/**
+ * Format revoked certificates array
+ * @param {r.RevokedCertificate[] | null} revokedCertificates
+ * @param {Number} indent
+ * @returns Multi-line formatted string output of revoked certificates array
+ */
+function formatRevokedCertificates(revokedCertificates, indent) {
+    if (Array.isArray(revokedCertificates) === false || revokedCertificates.length === 0) {
+        return indentString("No Revoked Certificates.", indent);
+    }
+
+    let out=``;
+
+    revokedCertificates.forEach((revCert) => {
+        if (!Object.hasOwn(revCert, "sn") || !Object.hasOwn(revCert, "date")) {
+            throw new OperationError("invalid revoked certificate object, missing either serial number or date");
+        }
+
+        out += `Serial Number: ${revCert.sn.hex.toUpperCase()}
+    Revocation Date: ${generalizedDateTimeToUTC(revCert.date)}\n`;
+        if (Object.hasOwn(revCert, "ext") && Array.isArray(revCert.ext) && revCert.ext.length !== 0) {
+            out += `\tCRL entry extensions:\n${indentString(formatCRLEntryExtensions(revCert.ext), 2*indent)}\n`;
+        }
+    });
+
+    return indentString(chop(out), indent);
+}
+
+/**
+ * Format CRL entry extensions.
+ * @param {Object[]} exts
+ * @returns Formatted multi-line string describing CRL entry extensions.
+ */
+function formatCRLEntryExtensions(exts) {
+    let out = ``;
+
+    const crlReasonCodeToReasonMessage = {
+        0: "Unspecified",
+        1: "Key Compromise",
+        2: "CA Compromise",
+        3: "Affiliation Changed",
+        4: "Superseded",
+        5: "Cessation Of Operation",
+        6: "Certificate Hold",
+        8: "Remove From CRL",
+        9: "Privilege Withdrawn",
+        10: "AA Compromise",
+    };
+
+    const holdInstructionOIDToName = {
+        "1.2.840.10040.2.1": "Hold Instruction None",
+        "1.2.840.10040.2.2": "Hold Instruction Call Issuer",
+        "1.2.840.10040.2.3": "Hold Instruction Reject",
+    };
+
+    exts.forEach((ext) => {
+        if (!Object.hasOwn(ext, "extname")) {
+            throw new OperationError(`CRL entry extension object missing 'extname' key: ${ext}`);
+        }
+        switch (ext.extname) {
+            case "cRLReason":
+                if (!Object.hasOwn(ext, "code")) {
+                    throw new OperationError(`'cRLReason' CRL entry extension missing 'code' key: ${ext}`);
+                }
+                out += `X509v3 CRL Reason Code:
+    ${Object.hasOwn(crlReasonCodeToReasonMessage, ext.code) ? crlReasonCodeToReasonMessage[ext.code] : `invalid reason code: ${ext.code}`}\n`;
+                break;
+            case "2.5.29.23": // Hold instruction
+                out += `Hold Instruction Code:\n\t${Object.hasOwn(holdInstructionOIDToName, ext.extn.oid) ? holdInstructionOIDToName[ext.extn.oid] : `${ext.extn.oid}: unknown hold instruction OID`}\n`;
+                break;
+            case "2.5.29.24": // Invalidity Date
+                out += `Invalidity Date:\n\t${generalizedDateTimeToUTC(ext.extn.gentime.str)}\n`;
+                break;
+            default:
+                out += `${ext.extname}:\n`;
+                out += `\tUnsupported CRL entry extension. Try openssl CLI.\n`;
+                break;
+        }
+    });
+
+    return chop(out);
+}
+
+/**
+ * Format CRL signature.
+ * @param {String} sigHex
+ * @param {Number} indent
+ * @returns String representing hex signature value formatted on multiple lines.
+ */
+function formatCRLSignature(sigHex, indent) {
+    if (sigHex.length % 2 !== 0) {
+        sigHex = "0" + sigHex;
+    }
+
+    return indentString(formatMultiLine(chop(sigHex.replace(/(..)/g, "$&:"))), indent);
+}
+
+/**
+ * Format string onto multiple lines.
+ * @param {string} longStr
+ * @returns String as a multi-line string.
+ */
+function formatMultiLine(longStr) {
+    const lines = [];
+
+    for (let remain = longStr ; remain !== "" ; remain = remain.substring(54)) {
+        lines.push(remain.substring(0, 54));
+    }
+
+    return lines.join("\n");
+}
+
+/**
+ * Indent a multi-line string by n spaces.
+ * @param {string} input String
+ * @param {number} spaces How many leading spaces
+ * @returns Indented string.
+ */
+function indentString(input, spaces) {
+    const indent = " ".repeat(spaces);
+    return input.replace(/^/gm, indent);
+}
+
+/**
+ * Remove last character from a string.
+ * @param {string} s String
+ * @returns Chopped string.
+ */
+function chop(s) {
+    if (s.length < 1) {
+        return s;
+    }
+    return s.substring(0, s.length - 1);
+}
+
+export default ParseX509CRL;

src/core/operations/ParseX509Certificate.mjs

@@ -6,7 +6,8 @@
 
 import r from "jsrsasign";
 import { fromBase64 } from "../lib/Base64.mjs";
-import { toHex } from "../lib/Hex.mjs";
+import { runHash } from "../lib/Hash.mjs";
+import { fromHex, toHex } from "../lib/Hex.mjs";
 import { formatByteStr, formatDnObj } from "../lib/PublicKey.mjs";
 import Operation from "../Operation.mjs";
 import Utils from "../Utils.mjs";
@@ -81,7 +82,8 @@ class ParseX509Certificate extends Operation {
         }
         if (undefinedInputFormat) throw "Undefined input format";
 
-        const sn = cert.getSerialNumberHex(),
+        const hex = Utils.strToArrayBuffer(Utils.byteArrayToChars(fromHex(cert.hex))),
+            sn = cert.getSerialNumberHex(),
             issuer = cert.getIssuer(),
             subject = cert.getSubject(),
             pk = cert.getPublicKey(),
@@ -191,6 +193,10 @@ Issuer
 ${issuerStr}
 Subject
 ${subjectStr}
+Fingerprints
+  MD5:            ${runHash("md5", hex)}
+  SHA1:           ${runHash("sha1", hex)}
+  SHA256:         ${runHash("sha256", hex)}
 Public Key
 ${pkStr.slice(0, -1)}
 Certificate Signature

src/core/operations/ROT13.mjs

@@ -59,15 +59,16 @@ class ROT13 extends Operation {
             rot13Upperacse = args[1],
             rotNumbers = args[2];
         let amount = args[3],
-            chr;
+            amountNumbers = args[3];
 
         if (amount) {
             if (amount < 0) {
                 amount = 26 - (Math.abs(amount) % 26);
+                amountNumbers = 10 - (Math.abs(amountNumbers) % 10);
             }
 
             for (let i = 0; i < input.length; i++) {
-                chr = input[i];
+                let chr = input[i];
                 if (rot13Upperacse && chr >= 65 && chr <= 90) { // Upper case
                     chr = (chr - 65 + amount) % 26;
                     output[i] = chr + 65;
@@ -75,7 +76,7 @@ class ROT13 extends Operation {
                     chr = (chr - 97 + amount) % 26;
                     output[i] = chr + 97;
                 } else if (rotNumbers && chr >= 48 && chr <= 57) { // Numbers
-                    chr = (chr - 48 + amount) % 10;
+                    chr = (chr - 48 + amountNumbers) % 10;
                     output[i] = chr + 48;
                 }
             }

src/core/operations/RSASign.mjs

@@ -60,7 +60,7 @@ class RSASign extends Operation {
             const privateKey = forge.pki.decryptRsaPrivateKey(key, password);
             // Generate message hash
             const md = MD_ALGORITHMS[mdAlgo].create();
-            md.update(input, "utf8");
+            md.update(input, "raw");
             // Sign message hash
             const sig = privateKey.sign(md);
             return sig;

src/core/operations/RSAVerify.mjs

@@ -8,6 +8,7 @@ import Operation from "../Operation.mjs";
 import OperationError from "../errors/OperationError.mjs";
 import forge from "node-forge";
 import { MD_ALGORITHMS } from "../lib/RSA.mjs";
+import Utils from "../Utils.mjs";
 
 /**
  * RSA Verify operation
@@ -37,6 +38,11 @@ class RSAVerify extends Operation {
                 type: "text",
                 value: ""
             },
+            {
+                name: "Message format",
+                type: "option",
+                value: ["Raw", "Hex", "Base64"]
+            },
             {
                 name: "Message Digest Algorithm",
                 type: "option",
@@ -51,7 +57,7 @@ class RSAVerify extends Operation {
      * @returns {string}
      */
     run(input, args) {
-        const [pemKey, message, mdAlgo] = args;
+        const [pemKey, message, format, mdAlgo] = args;
         if (pemKey.replace("-----BEGIN RSA PUBLIC KEY-----", "").length === 0) {
             throw new OperationError("Please enter a public key.");
         }
@@ -60,7 +66,8 @@ class RSAVerify extends Operation {
             const pubKey = forge.pki.publicKeyFromPem(pemKey);
             // Generate message digest
             const md = MD_ALGORITHMS[mdAlgo].create();
-            md.update(message, "utf8");
+            const messageStr = Utils.convertToByteString(message, format);
+            md.update(messageStr, "raw");
             // Compare signed message digest and generated message digest
             const result = pubKey.verify(md.digest().bytes(), input);
             return result ? "Verified OK" : "Verification Failure";

src/core/operations/SM2Decrypt.mjs

@@ -0,0 +1,71 @@
+/**
+ * @author flakjacket95 [dflack95@gmail.com]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import OperationError from "../errors/OperationError.mjs";
+import Operation from "../Operation.mjs";
+
+import { SM2 } from "../lib/SM2.mjs";
+
+/**
+ * SM2Decrypt operation
+ */
+class SM2Decrypt extends Operation {
+
+    /**
+     * SM2Decrypt constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "SM2 Decrypt";
+        this.module = "Crypto";
+        this.description = "Decrypts a message utilizing the SM2 standard";
+        this.infoURL = ""; // Usually a Wikipedia link. Remember to remove localisation (i.e. https://wikipedia.org/etc rather than https://en.wikipedia.org/etc)
+        this.inputType = "string";
+        this.outputType = "ArrayBuffer";
+        this.args = [
+            {
+                name: "Private Key",
+                type: "string",
+                value: "DEADBEEF"
+            },
+            {
+                "name": "Input Format",
+                "type": "option",
+                "value": ["C1C3C2", "C1C2C3"],
+                "defaultIndex": 0
+            },
+            {
+                name: "Curve",
+                type: "option",
+                "value": ["sm2p256v1"],
+                "defaultIndex": 0
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {ArrayBuffer}
+     */
+    run(input, args) {
+        const [privateKey, inputFormat, curveName] = args;
+
+        if (privateKey.length !== 64) {
+            throw new OperationError("Input private key must be in hex; and should be 32 bytes");
+        }
+
+        const sm2 = new SM2(curveName, inputFormat);
+        sm2.setPrivateKey(privateKey);
+
+        const result = sm2.decrypt(input);
+        return result;
+    }
+
+}
+
+export default SM2Decrypt;

src/core/operations/SM2Encrypt.mjs

@@ -0,0 +1,77 @@
+/**
+ * @author flakjacket95 [dflack95@gmail.com]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import OperationError from "../errors/OperationError.mjs";
+import Operation from "../Operation.mjs";
+
+import { SM2 } from "../lib/SM2.mjs";
+
+/**
+ * SM2 Encrypt operation
+ */
+class SM2Encrypt extends Operation {
+
+    /**
+     * SM2Encrypt constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "SM2 Encrypt";
+        this.module = "Crypto";
+        this.description = "Encrypts a message utilizing the SM2 standard";
+        this.infoURL = ""; // Usually a Wikipedia link. Remember to remove localisation (i.e. https://wikipedia.org/etc rather than https://en.wikipedia.org/etc)
+        this.inputType = "ArrayBuffer";
+        this.outputType = "string";
+
+        this.args = [
+            {
+                name: "Public Key X",
+                type: "string",
+                value: "DEADBEEF"
+            },
+            {
+                name: "Public Key Y",
+                type: "string",
+                value: "DEADBEEF"
+            },
+            {
+                "name": "Output Format",
+                "type": "option",
+                "value": ["C1C3C2", "C1C2C3"],
+                "defaultIndex": 0
+            },
+            {
+                name: "Curve",
+                type: "option",
+                "value": ["sm2p256v1"],
+                "defaultIndex": 0
+            }
+        ];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const [publicKeyX, publicKeyY, outputFormat, curveName] = args;
+        this.outputFormat = outputFormat;
+
+        if (publicKeyX.length !== 64 || publicKeyY.length !== 64) {
+            throw new OperationError("Invalid Public Key - Ensure each component is 32 bytes in size and in hex");
+        }
+
+        const sm2 = new SM2(curveName, outputFormat);
+        sm2.setPublicKey(publicKeyX, publicKeyY);
+
+        const result = sm2.encrypt(new Uint8Array(input));
+        return result;
+    }
+}
+
+export default SM2Encrypt;

src/core/operations/StripIPv4Header.mjs

@@ -0,0 +1,57 @@
+/**
+ * @author c65722 []
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import Stream from "../lib/Stream.mjs";
+
+/**
+ * Strip IPv4 header operation
+ */
+class StripIPv4Header extends Operation {
+
+    /**
+     * StripIPv4Header constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Strip IPv4 header";
+        this.module = "Default";
+        this.description = "Strips the IPv4 header from an IPv4 packet, outputting the payload.";
+        this.infoURL = "https://wikipedia.org/wiki/IPv4";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "ArrayBuffer";
+        this.args = [];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {ArrayBuffer}
+     */
+    run(input, args) {
+        const MIN_HEADER_LEN = 20;
+
+        const s = new Stream(new Uint8Array(input));
+        if (s.length < MIN_HEADER_LEN) {
+            throw new OperationError("Input length is less than minimum IPv4 header length");
+        }
+
+        const ihl = s.readInt(1) & 0x0f;
+        const dataOffsetBytes = ihl * 4;
+        if (s.length < dataOffsetBytes) {
+            throw new OperationError("Input length is less than IHL");
+        }
+
+        s.moveTo(dataOffsetBytes);
+
+        return s.getBytes().buffer;
+    }
+
+}
+
+export default StripIPv4Header;

src/core/operations/StripTCPHeader.mjs

@@ -0,0 +1,60 @@
+/**
+ * @author c65722 []
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import Stream from "../lib/Stream.mjs";
+
+/**
+ * Strip TCP header operation
+ */
+class StripTCPHeader extends Operation {
+
+    /**
+     * StripTCPHeader constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Strip TCP header";
+        this.module = "Default";
+        this.description = "Strips the TCP header from a TCP segment, outputting the payload.";
+        this.infoURL = "https://wikipedia.org/wiki/Transmission_Control_Protocol";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "ArrayBuffer";
+        this.args = [];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {ArrayBuffer}
+     */
+    run(input, args) {
+        const MIN_HEADER_LEN = 20;
+        const DATA_OFFSET_OFFSET = 12;
+        const DATA_OFFSET_LEN_BITS = 4;
+
+        const s = new Stream(new Uint8Array(input));
+        if (s.length < MIN_HEADER_LEN) {
+            throw new OperationError("Need at least 20 bytes for a TCP Header");
+        }
+
+        s.moveTo(DATA_OFFSET_OFFSET);
+        const dataOffsetWords = s.readBits(DATA_OFFSET_LEN_BITS);
+        const dataOffsetBytes = dataOffsetWords * 4;
+        if (s.length < dataOffsetBytes) {
+            throw new OperationError("Input length is less than data offset");
+        }
+
+        s.moveTo(dataOffsetBytes);
+
+        return s.getBytes().buffer;
+    }
+
+}
+
+export default StripTCPHeader;

src/core/operations/StripUDPHeader.mjs

@@ -0,0 +1,51 @@
+/**
+ * @author c65722 []
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import Stream from "../lib/Stream.mjs";
+import OperationError from "../errors/OperationError.mjs";
+
+/**
+ * Strip UDP header operation
+ */
+class StripUDPHeader extends Operation {
+
+    /**
+     * StripUDPHeader constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Strip UDP header";
+        this.module = "Default";
+        this.description = "Strips the UDP header from a UDP datagram, outputting the payload.";
+        this.infoURL = "https://wikipedia.org/wiki/User_Datagram_Protocol";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "ArrayBuffer";
+        this.args = [];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {ArrayBuffer}
+     */
+    run(input, args) {
+        const HEADER_LEN = 8;
+
+        const s = new Stream(new Uint8Array(input));
+        if (s.length < HEADER_LEN) {
+            throw new OperationError("Need 8 bytes for a UDP Header");
+        }
+
+        s.moveTo(HEADER_LEN);
+
+        return s.getBytes().buffer;
+    }
+
+}
+
+export default StripUDPHeader;

src/core/operations/TakeNthBytes.mjs

@@ -0,0 +1,79 @@
+/**
+ * @author Oshawk [oshawk@protonmail.com]
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+
+/**
+ * Take nth bytes operation
+ */
+class TakeNthBytes extends Operation {
+
+    /**
+     * TakeNthBytes constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Take nth bytes";
+        this.module = "Default";
+        this.description = "Takes every nth byte starting with a given byte.";
+        this.infoURL = "";
+        this.inputType = "byteArray";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                name: "Take every",
+                type: "number",
+                value: 4
+            },
+            {
+                name: "Starting at",
+                type: "number",
+                value: 0
+            },
+            {
+                name: "Apply to each line",
+                type: "boolean",
+                value: false
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const n = args[0];
+        const start = args[1];
+        const eachLine = args[2];
+
+        if (parseInt(n, 10) !== n || n <= 0) {
+            throw new OperationError("'Take every' must be a positive integer.");
+        }
+        if (parseInt(start, 10) !== start || start < 0) {
+            throw new OperationError("'Starting at' must be a positive or zero integer.");
+        }
+
+        let offset = 0;
+        const output = [];
+        for (let i = 0; i < input.length; i++) {
+            if (eachLine && input[i] === 0x0a) {
+                output.push(0x0a);
+                offset = i + 1;
+            } else if (i - offset >= start && (i - (start + offset)) % n === 0) {
+                output.push(input[i]);
+            }
+        }
+
+        return output;
+    }
+
+}
+
+export default TakeNthBytes;

src/core/operations/ToBase32.mjs

@@ -6,6 +6,7 @@
 
 import Operation from "../Operation.mjs";
 import Utils from "../Utils.mjs";
+import {ALPHABET_OPTIONS} from "../lib/Base32.mjs";
 
 /**
  * To Base32 operation
@@ -27,8 +28,8 @@ class ToBase32 extends Operation {
         this.args = [
             {
                 name: "Alphabet",
-                type: "binaryString",
+                type: "editableOption",
-                value: "A-Z2-7="
+                value: ALPHABET_OPTIONS
             }
         ];
     }
@@ -83,3 +84,4 @@ class ToBase32 extends Operation {
 }
 
 export default ToBase32;
+

src/core/operations/ToModhex.mjs

@@ -0,0 +1,55 @@
+/**
+ * @author linuxgemini [ilteris@asenkron.com.tr]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import { TO_MODHEX_DELIM_OPTIONS, toModhex } from "../lib/Modhex.mjs";
+import Utils from "../Utils.mjs";
+
+/**
+ * To Modhex operation
+ */
+class ToModhex extends Operation {
+
+    /**
+     * ToModhex constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "To Modhex";
+        this.module = "Default";
+        this.description = "Converts the input string to modhex bytes separated by the specified delimiter.";
+        this.infoURL = "https://en.wikipedia.org/wiki/YubiKey#ModHex";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Delimiter",
+                type: "option",
+                value: TO_MODHEX_DELIM_OPTIONS
+            },
+            {
+                name: "Bytes per line",
+                type: "number",
+                value: 0
+            }
+        ];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const delim = Utils.charRep(args[0]);
+        const lineSize = args[1];
+
+        return toModhex(new Uint8Array(input), delim, 2, "", lineSize);
+    }
+}
+
+export default ToModhex;

src/core/operations/TripleDESDecrypt.mjs

@@ -22,7 +22,7 @@ class TripleDESDecrypt extends Operation {
 
         this.name = "Triple DES Decrypt";
         this.module = "Ciphers";
-        this.description = "Triple DES applies DES three times to each block to increase key size.<br><br><b>Key:</b> Triple DES uses a key length of 24 bytes (192 bits).<br>DES uses a key length of 8 bytes (64 bits).<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used as a default.";
+        this.description = "Triple DES applies DES three times to each block to increase key size.<br><br><b>Key:</b> Triple DES uses a key length of 24 bytes (192 bits).<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used as a default.";
         this.infoURL = "https://wikipedia.org/wiki/Triple_DES";
         this.inputType = "string";
         this.outputType = "string";
@@ -73,8 +73,7 @@ class TripleDESDecrypt extends Operation {
         if (key.length !== 24 && key.length !== 16) {
             throw new OperationError(`Invalid key length: ${key.length} bytes
 
-Triple DES uses a key length of 24 bytes (192 bits).
+Triple DES uses a key length of 24 bytes (192 bits).`);
-DES uses a key length of 8 bytes (64 bits).`);
         }
         if (iv.length !== 8 && mode !== "ECB") {
             throw new OperationError(`Invalid IV length: ${iv.length} bytes

src/core/operations/TripleDESEncrypt.mjs

@@ -22,7 +22,7 @@ class TripleDESEncrypt extends Operation {
 
         this.name = "Triple DES Encrypt";
         this.module = "Ciphers";
-        this.description = "Triple DES applies DES three times to each block to increase key size.<br><br><b>Key:</b> Triple DES uses a key length of 24 bytes (192 bits).<br>DES uses a key length of 8 bytes (64 bits).<br><br>You can generate a password-based key using one of the KDF operations.<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used.";
+        this.description = "Triple DES applies DES three times to each block to increase key size.<br><br><b>Key:</b> Triple DES uses a key length of 24 bytes (192 bits).<br><br>You can generate a password-based key using one of the KDF operations.<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used.";
         this.infoURL = "https://wikipedia.org/wiki/Triple_DES";
         this.inputType = "string";
         this.outputType = "string";
@@ -72,8 +72,7 @@ class TripleDESEncrypt extends Operation {
         if (key.length !== 24 && key.length !== 16) {
             throw new OperationError(`Invalid key length: ${key.length} bytes
 
-Triple DES uses a key length of 24 bytes (192 bits).
+Triple DES uses a key length of 24 bytes (192 bits).`);
-DES uses a key length of 8 bytes (64 bits).`);
         }
         if (iv.length !== 8 && mode !== "ECB") {
             throw new OperationError(`Invalid IV length: ${iv.length} bytes

src/core/operations/YAMLToJSON.mjs

@@ -0,0 +1,45 @@
+/**
+ * @author ccarpo [ccarpo@gmx.net]
+ * @copyright Crown Copyright 2021
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+import jsYaml from "js-yaml";
+/**
+ * YAML to JSON operation
+ */
+class YAMLToJSON extends Operation {
+
+    /**
+     * YAMLToJSON constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "YAML to JSON";
+        this.module = "Default";
+        this.description = "Convert YAML to JSON";
+        this.infoURL = "https://en.wikipedia.org/wiki/YAML";
+        this.inputType = "string";
+        this.outputType = "JSON";
+        this.args = [];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {JSON}
+     */
+    run(input, args) {
+        try {
+            return jsYaml.load(input);
+        } catch (err) {
+            throw new OperationError("Unable to parse YAML: " + err);
+        }
+    }
+
+}
+
+export default YAMLToJSON;

src/node/config/scripts/generateNodeIndex.mjs

@@ -23,7 +23,7 @@ const dir = path.join(`${process.cwd()}/src/node`);
 if (!fs.existsSync(dir)) {
     console.log("\nCWD: " + process.cwd());
     console.log("Error: generateNodeIndex.mjs should be run from the project root");
-    console.log("Example> node --experimental-modules src/core/config/scripts/generateNodeIndex.mjs");
+    console.log("Example> node --experimental-modules src/node/config/scripts/generateNodeIndex.mjs");
     process.exit(1);
 }
 

src/web/App.mjs

@@ -60,6 +60,7 @@ class App {
 
         this.initialiseSplitter();
         this.loadLocalStorage();
+        this.manager.options.applyPreferredColorScheme();
         this.populateOperationsList();
         this.manager.setup();
         this.manager.output.saveBombe();
@@ -536,6 +537,8 @@ class App {
         // Read in theme from URI params
         if (this.uriParams.theme) {
             this.manager.options.changeTheme(Utils.escapeHtml(this.uriParams.theme));
+        } else {
+            this.manager.options.applyPreferredColorScheme();
         }
 
         window.dispatchEvent(this.manager.statechange);

src/web/waiters/OptionsWaiter.mjs

@@ -160,9 +160,36 @@ class OptionsWaiter {
 
         // Update theme selection
         const themeSelect = document.getElementById("theme");
-        themeSelect.selectedIndex = themeSelect.querySelector(`option[value="${theme}"`).index;
+        let themeOption = themeSelect.querySelector(`option[value="${theme}"]`);
+
+        if (!themeOption) {
+            const preferredColorScheme = this.getPreferredColorScheme();
+            document.querySelector(":root").className = preferredColorScheme;
+            themeOption = themeSelect.querySelector(`option[value="${preferredColorScheme}"]`);
+        }
+
+        themeSelect.selectedIndex = themeOption.index;
     }
 
+    /**
+     * Applies the user's preferred color scheme using the `prefers-color-scheme` media query.
+     */
+    applyPreferredColorScheme() {
+        const themeFromStorage = this.app?.options?.theme;
+        let theme = themeFromStorage;
+        if (!theme) {
+            theme = this.getPreferredColorScheme();
+        }
+        this.changeTheme(theme);
+    }
+
+    /**
+     * Get the user's preferred color scheme using the `prefers-color-scheme` media query.
+     */
+    getPreferredColorScheme() {
+        const prefersDarkScheme = window.matchMedia("(prefers-color-scheme: dark)").matches;
+        return prefersDarkScheme ? "dark" : "classic";
+    }
 
     /**
      * Changes the console logging level.

src/web/waiters/RecipeWaiter.mjs

@@ -8,6 +8,7 @@ import HTMLOperation from "../HTMLOperation.mjs";
 import Sortable from "sortablejs";
 import Utils from "../../core/Utils.mjs";
 import {escapeControlChars} from "../utils/editorUtils.mjs";
+import DOMPurify from "dompurify";
 
 
 /**
@@ -435,7 +436,9 @@ class RecipeWaiter {
         const item = document.createElement("li");
 
         item.classList.add("operation");
-        item.innerHTML = name;
+        const clean = DOMPurify.sanitize(name);
+        item.innerHTML = clean;
+
         this.buildRecipeOperation(item);
         document.getElementById("rec-list").appendChild(item);
 

tests/browser/01_io.js

@@ -675,42 +675,42 @@ module.exports = {
         }
     },
 
-    "Loading from URL": browser => {
+    // "Loading from URL": browser => {
-        utils.clear(browser);
+    //     utils.clear(browser);
 
-        /* Side panel displays correct info */
+    //     /* Side panel displays correct info */
-        utils.uploadFile(browser, "files/TowelDay.jpeg");
+    //     utils.uploadFile(browser, "files/TowelDay.jpeg");
 
-        browser
+    //     browser
-            .waitForElementVisible("#input-text .cm-file-details")
+    //         .waitForElementVisible("#input-text .cm-file-details")
-            .waitForElementVisible("#input-text .cm-file-details .file-details-toggle-shown")
+    //         .waitForElementVisible("#input-text .cm-file-details .file-details-toggle-shown")
-            .waitForElementVisible("#input-text .cm-file-details .file-details-thumbnail")
+    //         .waitForElementVisible("#input-text .cm-file-details .file-details-thumbnail")
-            .waitForElementVisible("#input-text .cm-file-details .file-details-name")
+    //         .waitForElementVisible("#input-text .cm-file-details .file-details-name")
-            .waitForElementVisible("#input-text .cm-file-details .file-details-size")
+    //         .waitForElementVisible("#input-text .cm-file-details .file-details-size")
-            .waitForElementVisible("#input-text .cm-file-details .file-details-type")
+    //         .waitForElementVisible("#input-text .cm-file-details .file-details-type")
-            .waitForElementVisible("#input-text .cm-file-details .file-details-loaded");
+    //         .waitForElementVisible("#input-text .cm-file-details .file-details-loaded");
 
-        /* Complex deep link populates the input correctly (encoding, eol, input) */
+    //     /* Complex deep link populates the input correctly (encoding, eol, input) */
-        browser
+    //     browser
-            .urlHash("recipe=To_Base64('A-Za-z0-9%2B/%3D')&input=VGhlIHNoaXBzIGh1bmcgaW4gdGhlIHNreSBpbiBtdWNoIHRoZSBzYW1lIHdheSB0aGF0IGJyaWNrcyBkb24ndC4M&ienc=21866&oenc=1201&ieol=FF&oeol=PS")
+    //         .urlHash("recipe=To_Base64('A-Za-z0-9%2B/%3D')&input=VGhlIHNoaXBzIGh1bmcgaW4gdGhlIHNreSBpbiBtdWNoIHRoZSBzYW1lIHdheSB0aGF0IGJyaWNrcyBkb24ndC4M&ienc=21866&oenc=1201&ieol=FF&oeol=PS")
-            .waitForElementVisible("#rec-list li.operation");
+    //         .waitForElementVisible("#rec-list li.operation");
 
-        browser.expect.element(`#input-text .cm-content`).to.have.property("textContent").match(/^.{65}$/);
+    //     browser.expect.element(`#input-text .cm-content`).to.have.property("textContent").match(/^.{65}$/);
-        browser.expect.element("#input-text .cm-status-bar .stats-length-value").text.to.equal("66");
+    //     browser.expect.element("#input-text .cm-status-bar .stats-length-value").text.to.equal("66");
-        browser.expect.element("#input-text .cm-status-bar .stats-lines-value").text.to.equal("2");
+    //     browser.expect.element("#input-text .cm-status-bar .stats-lines-value").text.to.equal("2");
 
-        browser.expect.element("#input-text .chr-enc-value").text.that.equals("KOI8-U Ukrainian Cyrillic");
+    //     browser.expect.element("#input-text .chr-enc-value").text.that.equals("KOI8-U Ukrainian Cyrillic");
-        browser.expect.element("#output-text .chr-enc-value").text.that.equals("UTF-16BE");
+    //     browser.expect.element("#output-text .chr-enc-value").text.that.equals("UTF-16BE");
 
-        browser.expect.element("#input-text .eol-value").text.that.equals("FF");
+    //     browser.expect.element("#input-text .eol-value").text.that.equals("FF");
-        browser.expect.element("#output-text .eol-value").text.that.equals("PS");
+    //     browser.expect.element("#output-text .eol-value").text.that.equals("PS");
 
-        utils.bake(browser);
+    //     utils.bake(browser);
 
-        browser.expect.element(`#output-text .cm-content`).to.have.property("textContent").match(/^.{44}$/);
+    //     browser.expect.element(`#output-text .cm-content`).to.have.property("textContent").match(/^.{44}$/);
-        browser.expect.element("#output-text .cm-status-bar .stats-length-value").text.to.equal("44");
+    //     browser.expect.element("#output-text .cm-status-bar .stats-length-value").text.to.equal("44");
-        browser.expect.element("#output-text .cm-status-bar .stats-lines-value").text.to.equal("1");
+    //     browser.expect.element("#output-text .cm-status-bar .stats-lines-value").text.to.equal("1");
-    },
+    // },
 
     "Replace input with output": browser => {
         /* Input is correctly populated */

tests/browser/02_ops.js

@@ -64,9 +64,9 @@ module.exports = {
         testOp(browser, ["From Hex", "Bzip2 Decompress"], "425a68393141592653597b0884b7000003038000008200ce00200021a647a4218013709517c5dc914e14241ec2212dc0", "test_output", [[], [true]]);
     // testOp(browser, "CBOR Decode", "test input", "test output");
     // testOp(browser, "CBOR Encode", "test input", "test output");
-        testOp(browser, "CRC-16 Checksum", "test input", "77c7");
+        testOp(browser, "CRC Checksum", "test input", "77c7", ["CRC-16"]);
-        testOp(browser, "CRC-32 Checksum", "test input", "29822bc8");
+        testOp(browser, "CRC Checksum", "test input", "29822bc8", ["CRC-32"]);
-        testOp(browser, "CRC-8 Checksum", "test input", "9d");
+        testOp(browser, "CRC Checksum", "test input", "9d", ["CRC-8"]);
     // testOp(browser, "CSS Beautify", "test input", "test_output");
     // testOp(browser, "CSS Minify", "test input", "test_output");
         // testOp(browser, "CSS selector", "test input", "test_output");
@@ -236,7 +236,7 @@ module.exports = {
         // testOp(browser, "OR", "test input", "test_output");
         // testOp(browser, "Object Identifier to Hex", "test input", "test_output");
         testOpHtml(browser, "Offset checker", "test input\n\nbest input", ".hl5", "est input");
-    // testOp(browser, "Optical Character Recognition", "test input", "test_output");
+        testOpFile(browser, "Optical Character Recognition", "files/testocr.png", false, /This is a lot of 12 point text to test the/, [], 10000);
         // testOp(browser, "PEM to Hex", "test input", "test_output");
     // testOp(browser, "PGP Decrypt", "test input", "test_output");
     // testOp(browser, "PGP Decrypt and Verify", "test input", "test_output");
@@ -408,7 +408,7 @@ module.exports = {
  * @param {Browser} browser - Nightwatch client
  * @param {string|Array<string>} opName - name of operation to be tested, array for multiple ops
  * @param {string} input - input text for test
- * @param {Array<string>|Array<Array<string>>} args - arguments, nested if multiple ops
+ * @param {Array<string>|Array<Array<string>>} [args=[]] - arguments, nested if multiple ops
  */
 function bakeOp(browser, opName, input, args=[]) {
     browser.perform(function() {
@@ -425,8 +425,8 @@ function bakeOp(browser, opName, input, args=[]) {
  * @param {Browser} browser - Nightwatch client
  * @param {string|Array<string>} opName - name of operation to be tested, array for multiple ops
  * @param {string} input - input text
- * @param {string} output - expected output
+ * @param {string|RegExp} output - expected output
- * @param {Array<string>|Array<Array<string>>} args - arguments, nested if multiple ops
+ * @param {Array<string>|Array<Array<string>>} [args=[]] - arguments, nested if multiple ops
  */
 function testOp(browser, opName, input, output, args=[]) {
     bakeOp(browser, opName, input, args);
@@ -440,8 +440,8 @@ function testOp(browser, opName, input, output, args=[]) {
  * @param {string|Array<string>} opName - name of operation to be tested array for multiple ops
  * @param {string} input - input text
  * @param {string} cssSelector - CSS selector for HTML output
- * @param {string} output - expected output
+ * @param {string|RegExp} output - expected output
- * @param {Array<string>|Array<Array<string>>} args - arguments, nested if multiple ops
+ * @param {Array<string>|Array<Array<string>>} [args=[]] - arguments, nested if multiple ops
  */
 function testOpHtml(browser, opName, input, cssSelector, output, args=[]) {
     bakeOp(browser, opName, input, args);
@@ -459,9 +459,9 @@ function testOpHtml(browser, opName, input, cssSelector, output, args=[]) {
  * @param {Browser} browser - Nightwatch client
  * @param {string|Array<string>} opName - name of operation to be tested array for multiple ops
  * @param {string} filename - filename of image file from samples directory
- * @param {Array<string>|Array<Array<string>>} args - arguments, nested if multiple ops
+ * @param {Array<string>|Array<Array<string>>} [args=[]] - arguments, nested if multiple ops
  */
-function testOpImage(browser, opName, filename, args) {
+function testOpImage(browser, opName, filename, args=[]) {
     browser.perform(function() {
         console.log(`Current test: ${opName}`);
     });
@@ -481,11 +481,12 @@ function testOpImage(browser, opName, filename, args) {
  * @param {Browser} browser - Nightwatch client
  * @param {string|Array<string>} opName - name of operation to be tested array for multiple ops
  * @param {string} filename - filename of file from samples directory
- * @param {string} cssSelector - CSS selector for HTML output
+ * @param {string|boolean} cssSelector - CSS selector for HTML output or false for normal text output
- * @param {string} output - expected output
+ * @param {string|RegExp} output - expected output
- * @param {Array<string>|Array<Array<string>>} args - arguments, nested if multiple ops
+ * @param {Array<string>|Array<Array<string>>} [args=[]] - arguments, nested if multiple ops
+ * @param {number} [waitWindow=1000] - The number of milliseconds to wait for the output to be correct
  */
-function testOpFile(browser, opName, filename, cssSelector, output, args) {
+function testOpFile(browser, opName, filename, cssSelector, output, args=[], waitWindow=1000) {
     browser.perform(function() {
         console.log(`Current test: ${opName}`);
     });
@@ -494,9 +495,14 @@ function testOpFile(browser, opName, filename, cssSelector, output, args) {
     browser.pause(100).waitForElementVisible("#stale-indicator", 5000);
     utils.bake(browser);
 
-    if (typeof output === "string") {
+    if (!cssSelector) {
+        // Text output
+        utils.expectOutput(browser, output, true, waitWindow);
+    } else if (typeof output === "string") {
+        // HTML output - string match
         browser.expect.element("#output-html " + cssSelector).text.that.equals(output);
     } else if (output instanceof RegExp) {
+        // HTML output - RegEx match
         browser.expect.element("#output-html " + cssSelector).text.that.matches(output);
     }
 }

tests/browser/browserUtils.js

@@ -180,15 +180,16 @@ function loadRecipe(browser, opName, input, args) {
  * @param {Browser} browser - Nightwatch client
  * @param {string|RegExp} expected - The expected output value
  * @param {boolean} [waitNotNull=false] - Wait for the output to not be empty before testing the value
+ * @param {number} [waitWindow=1000] - The number of milliseconds to wait for the output to be correct
  */
-function expectOutput(browser, expected, waitNotNull=false) {
+function expectOutput(browser, expected, waitNotNull=false, waitWindow=1000) {
     if (waitNotNull && expected !== "") {
         browser.waitUntil(async function() {
             const output = await this.execute(function() {
                 return window.app.manager.output.outputEditorView.state.doc.toString();
             });
             return output.length;
-        }, 1000);
+        }, waitWindow);
     }
 
     browser.execute(expected => {

tests/node/tests/nodeApi.mjs

@@ -119,7 +119,7 @@ TestRegister.addApiTests([
         assert.strictEqual(result[0].module, "Ciphers");
         assert.strictEqual(result[0].inputType, "string");
         assert.strictEqual(result[0].outputType, "string");
-        assert.strictEqual(result[0].description, "Triple DES applies DES three times to each block to increase key size.<br><br><b>Key:</b> Triple DES uses a key length of 24 bytes (192 bits).<br>DES uses a key length of 8 bytes (64 bits).<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used as a default.");
+        assert.strictEqual(result[0].description, "Triple DES applies DES three times to each block to increase key size.<br><br><b>Key:</b> Triple DES uses a key length of 24 bytes (192 bits).<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used as a default.");
         assert.strictEqual(result[0].args.length, 5);
     }),
 

tests/node/tests/operations.mjs

@@ -305,16 +305,6 @@ Full hash: $2a$10$ODeP1.6fMsb.ENk2ngPUCO7qTGVPyHA9TqDVcyupyed8FjsiF65L6`;
         assert.strictEqual(result.toString(), "2");
     }),
 
-    it("CRC16 Checksum", () => {
-        const result = chef.CRC16Checksum("Rain on Your Parade");
-        assert.strictEqual(result.toString(), "db1c");
-    }),
-
-    it("CRC32 Checksum", () => {
-        const result = chef.CRC32Checksum("Rain on Your Parade");
-        assert.strictEqual(result.toString(), "e902f76c");
-    }),
-
     it("CSS Beautify", () => {
         const result = chef.CSSBeautify("header {color:black;padding:3rem;}");
         const expected = `header {
@@ -575,12 +565,11 @@ Top Drawer`, {
     }),
 
     it("Generate HOTP", () => {
-        const result = chef.generateHOTP("Cut The Mustard", {
+        const result = chef.generateHOTP("JBSWY3DPEHPK3PXP", {
-            name: "colonel",
         });
-        const expected = `URI: otpauth://hotp/colonel?secret=IN2XIICUNBSSATLVON2GC4TE
+        const expected = `URI: otpauth://hotp/?secret=JBSWY3DPEHPK3PXP&algorithm=SHA1&digits=6&counter=0
 
-Password: 034148`;
+Password: 282760`;
         assert.strictEqual(result.toString(), expected);
     }),
 

tests/operations/index.mjs

@@ -20,6 +20,7 @@ import TestRegister from "../lib/TestRegister.mjs";
 import "./tests/AESKeyWrap.mjs";
 import "./tests/AvroToJSON.mjs";
 import "./tests/BaconCipher.mjs";
+import "./tests/Base32.mjs";
 import "./tests/Base45.mjs";
 import "./tests/Base58.mjs";
 import "./tests/Base62.mjs";
@@ -44,7 +45,6 @@ import "./tests/ChaCha.mjs";
 import "./tests/ChangeIPFormat.mjs";
 import "./tests/CharEnc.mjs";
 import "./tests/Charts.mjs";
-import "./tests/Checksum.mjs";
 import "./tests/Ciphers.mjs";
 import "./tests/CipherSaber2.mjs";
 import "./tests/CMAC.mjs";
@@ -54,11 +54,14 @@ import "./tests/Comment.mjs";
 import "./tests/Compress.mjs";
 import "./tests/ConditionalJump.mjs";
 import "./tests/ConvertCoordinateFormat.mjs";
+import "./tests/ConvertLeetSpeak.mjs";
 import "./tests/ConvertToNATOAlphabet.mjs";
+import "./tests/CRCChecksum.mjs";
 import "./tests/Crypt.mjs";
 import "./tests/CSV.mjs";
 import "./tests/DateTime.mjs";
 import "./tests/DefangIP.mjs";
+import "./tests/DropNthBytes.mjs";
 import "./tests/ECDSA.mjs";
 import "./tests/ELFInfo.mjs";
 import "./tests/Enigma.mjs";
@@ -102,6 +105,8 @@ import "./tests/LZNT1Decompress.mjs";
 import "./tests/LZString.mjs";
 import "./tests/Magic.mjs";
 import "./tests/Media.mjs";
+import "./tests/MIMEDecoding.mjs";
+import "./tests/Modhex.mjs";
 import "./tests/MorseCode.mjs";
 import "./tests/MS.mjs";
 import "./tests/MultipleBombe.mjs";
@@ -115,11 +120,13 @@ import "./tests/ParseObjectIDTimestamp.mjs";
 import "./tests/ParseQRCode.mjs";
 import "./tests/ParseSSHHostKey.mjs";
 import "./tests/ParseTCP.mjs";
+import "./tests/ParseTLSRecord.mjs";
 import "./tests/ParseTLV.mjs";
 import "./tests/ParseUDP.mjs";
 import "./tests/PEMtoHex.mjs";
 import "./tests/PGP.mjs";
 import "./tests/PHP.mjs";
+import "./tests/PHPSerialize.mjs";
 import "./tests/PowerSet.mjs";
 import "./tests/Protobuf.mjs";
 import "./tests/PubKeyFromCert.mjs";
@@ -139,18 +146,33 @@ import "./tests/SetIntersection.mjs";
 import "./tests/SetUnion.mjs";
 import "./tests/Shuffle.mjs";
 import "./tests/SIGABA.mjs";
+import "./tests/SM2.mjs";
 import "./tests/SM4.mjs";
 // import "./tests/SplitColourChannels.mjs"; // Cannot test operations that use the File type yet
 import "./tests/StrUtils.mjs";
+import "./tests/StripIPv4Header.mjs";
+import "./tests/StripTCPHeader.mjs";
+import "./tests/StripUDPHeader.mjs";
 import "./tests/Subsection.mjs";
 import "./tests/SwapCase.mjs";
 import "./tests/SymmetricDifference.mjs";
+import "./tests/TakeNthBytes.mjs";
 import "./tests/TextEncodingBruteForce.mjs";
 import "./tests/ToFromInsensitiveRegex.mjs";
 import "./tests/TranslateDateTimeFormat.mjs";
 import "./tests/Typex.mjs";
 import "./tests/UnescapeString.mjs";
 import "./tests/Unicode.mjs";
+import "./tests/RSA.mjs";
+import "./tests/CBOREncode.mjs";
+import "./tests/CBORDecode.mjs";
+import "./tests/JA3Fingerprint.mjs";
+import "./tests/JA3SFingerprint.mjs";
+import "./tests/HASSH.mjs";
+import "./tests/JSONtoYAML.mjs";
+
+// Cannot test operations that use the File type yet
+// import "./tests/SplitColourChannels.mjs";
 import "./tests/YARA.mjs";
 import "./tests/ParseCSR.mjs";
 import "./tests/XXTEA.mjs";

tests/operations/tests/Base32.mjs

@@ -0,0 +1,176 @@
+/**
+ * Base32 Tests
+ *
+ * @author Peter C-S [petercs@purelymail.com]
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+import {ALPHABET_OPTIONS} from "../../../src/core/lib/Base32.mjs";
+
+// Example Standard Base32 Tests
+const STANDARD_INP = "HELLO BASE32";
+const STANDARD_OUT = "JBCUYTCPEBBECU2FGMZA====";
+
+// Example Hex Extended Base32 Tests
+const EXTENDED_INP = "HELLO BASE32 EXTENDED";
+const EXTENDED_OUT = "912KOJ2F41142KQ56CP20HAOAH2KSH258G======";
+
+// All Bytes
+const ALL_BYTES = [
+    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
+    "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
+    "\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f",
+    "\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f",
+    "\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f",
+    "\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f",
+    "\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f",
+    "\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f",
+    "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f",
+    "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f",
+    "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf",
+    "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf",
+    "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf",
+    "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf",
+    "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef",
+    "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
+].join("");
+
+const ALL_BYTES_EXTENDED_OUT = "000G40O40K30E209185GO38E1S8124GJ2GAHC5OO34D1M70T3OFI08924CI2A9H750KIKAPC5KN2UC1H68PJ8D9M6SS3IEHR7GUJSFQ085146H258P3KGIAA9D64QJIFA18L4KQKALB5EM2PB9DLONAUBTG62OJ3CHIMCPR8D5L6MR3DDPNN0SBIEDQ7ATJNF1SNKURSFLV7V041GA1O91C6GU48J2KBHI6OT3SGI699754LIQBPH6CQJEE9R7KVK2GQ58T4KMJAFA59LALQPBDELUOB3CLJMIQRDDTON6TBNF5TNQVS1GE2OF2CBHM7P34SLIUCPN7CVK6HQB9T9LEMQVCDJMMRRJETTNV0S7HE7P75SRJUHQFATFMERRNFU3OV5SVKUNRFFU7PVBTVPVFUVS======";
+const ALL_BYTES_STANDARD_OUT = "AAAQEAYEAUDAOCAJBIFQYDIOB4IBCEQTCQKRMFYYDENBWHA5DYPSAIJCEMSCKJRHFAUSUKZMFUXC6MBRGIZTINJWG44DSOR3HQ6T4P2AIFBEGRCFIZDUQSKKJNGE2TSPKBIVEU2UKVLFOWCZLJNVYXK6L5QGCYTDMRSWMZ3INFVGW3DNNZXXA4LSON2HK5TXPB4XU634PV7H7AEBQKBYJBMGQ6EITCULRSGY5D4QSGJJHFEVS2LZRGM2TOOJ3HU7UCQ2FI5EUWTKPKFJVKV2ZLNOV6YLDMVTWS23NN5YXG5LXPF5X274BQOCYPCMLRWHZDE4VS6MZXHM7UGR2LJ5JVOW27MNTWW33TO55X7A4HROHZHF43T6R2PK5PWO33XP6DY7F47U6X3PP6HZ7L57Z7P674======";
+
+TestRegister.addTests([
+    {
+        name: "To Base32 Standard: nothing",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "To Base32",
+                args: [ALPHABET_OPTIONS[0].value],
+            },
+        ],
+    },
+    {
+        name: "To Base32 Hex Extended: nothing",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "To Base32",
+                args: [ALPHABET_OPTIONS[1].value],
+            },
+        ],
+    },
+    {
+        name: "From Base32 Standard: nothing",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "From Base32",
+                args: [ALPHABET_OPTIONS[0].value, false],
+            },
+        ],
+    },
+    {
+        name: "From Base32 Hex Extended: nothing",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "From Base32",
+                args: [ALPHABET_OPTIONS[1].value, false],
+            },
+        ],
+    },
+    {
+        name: "To Base32 Standard: " + STANDARD_INP,
+        input: STANDARD_INP,
+        expectedOutput: STANDARD_OUT,
+        recipeConfig: [
+            {
+                op: "To Base32",
+                args: [ALPHABET_OPTIONS[0].value],
+            },
+        ],
+    },
+    {
+        name: "To Base32 Hex Extended: " + EXTENDED_INP,
+        input: EXTENDED_INP,
+        expectedOutput: EXTENDED_OUT,
+        recipeConfig: [
+            {
+                op: "To Base32",
+                args: [ALPHABET_OPTIONS[1].value],
+            },
+        ],
+    },
+    {
+        name: "From Base32 Standard: " + STANDARD_OUT,
+        input: STANDARD_OUT,
+        expectedOutput: STANDARD_INP,
+        recipeConfig: [
+            {
+                op: "From Base32",
+                args: [ALPHABET_OPTIONS[0].value, false],
+            },
+        ],
+    },
+    {
+        name: "From Base32 Hex Extended: " + EXTENDED_OUT,
+        input: EXTENDED_OUT,
+        expectedOutput: EXTENDED_INP,
+        recipeConfig: [
+            {
+                op: "From Base32",
+                args: [ALPHABET_OPTIONS[1].value, false],
+            },
+        ],
+    },
+    {
+        name: "To Base32 Hex Standard: All Bytes",
+        input: ALL_BYTES,
+        expectedOutput: ALL_BYTES_STANDARD_OUT,
+        recipeConfig: [
+            {
+                op: "To Base32",
+                args: [ALPHABET_OPTIONS[0].value],
+            },
+        ],
+    },
+    {
+        name: "To Base32 Hex Extended: All Bytes",
+        input: ALL_BYTES,
+        expectedOutput: ALL_BYTES_EXTENDED_OUT,
+        recipeConfig: [
+            {
+                op: "To Base32",
+                args: [ALPHABET_OPTIONS[1].value],
+            },
+        ],
+    },
+    {
+        name: "From Base32 Hex Standard: All Bytes",
+        input: ALL_BYTES_STANDARD_OUT,
+        expectedOutput: ALL_BYTES,
+        recipeConfig: [
+            {
+                op: "From Base32",
+                args: [ALPHABET_OPTIONS[0].value, false],
+            },
+        ],
+    },
+    {
+        name: "From Base32 Hex Extended: All Bytes",
+        input: ALL_BYTES_EXTENDED_OUT,
+        expectedOutput: ALL_BYTES,
+        recipeConfig: [
+            {
+                op: "From Base32",
+                args: [ALPHABET_OPTIONS[1].value, false],
+            },
+        ],
+    },
+]);
+

tests/operations/tests/Checksum.mjs

@@ -1,241 +0,0 @@
-/**
- * Checksum tests.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2018
- * @license Apache-2.0
- */
-import TestRegister from "../../lib/TestRegister.mjs";
-
-const BASIC_STRING = "The ships hung in the sky in much the same way that bricks don't.";
-const UTF8_STR = "ნუ პანიკას";
-const ALL_BYTES = [
-    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
-    "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
-    "\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f",
-    "\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f",
-    "\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f",
-    "\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f",
-    "\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f",
-    "\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f",
-    "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f",
-    "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f",
-    "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf",
-    "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf",
-    "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf",
-    "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf",
-    "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef",
-    "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
-].join("");
-
-TestRegister.addTests([
-    {
-        name: "CRC-8: nothing",
-        input: "",
-        expectedOutput: "00",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: default check",
-        input: "123456789",
-        expectedOutput: "f4",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: CDMA2000",
-        input: "123456789",
-        expectedOutput: "da",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8/CDMA2000"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: DARC",
-        input: "123456789",
-        expectedOutput: "15",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8/DARC"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: DVB-S2",
-        input: "123456789",
-        expectedOutput: "bc",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8/DVB-S2"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: EBU",
-        input: "123456789",
-        expectedOutput: "97",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8/EBU"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: I-CODE",
-        input: "123456789",
-        expectedOutput: "7e",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8/I-CODE"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: ITU",
-        input: "123456789",
-        expectedOutput: "a1",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8/ITU"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: MAXIM",
-        input: "123456789",
-        expectedOutput: "a1",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8/MAXIM"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: ROHC",
-        input: "123456789",
-        expectedOutput: "d0",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8/ROHC"]
-            }
-        ]
-    },
-    {
-        name: "CRC-8: WCDMA",
-        input: "123456789",
-        expectedOutput: "25",
-        recipeConfig: [
-            {
-                "op": "CRC-8 Checksum",
-                "args": ["CRC-8/WCDMA"]
-            }
-        ]
-    },
-    {
-        name: "CRC-16: nothing",
-        input: "",
-        expectedOutput: "0000",
-        recipeConfig: [
-            {
-                "op": "CRC-16 Checksum",
-                "args": []
-            }
-        ]
-    },
-    {
-        name: "CRC-16: basic string",
-        input: BASIC_STRING,
-        expectedOutput: "0c70",
-        recipeConfig: [
-            {
-                "op": "CRC-16 Checksum",
-                "args": []
-            }
-        ]
-    },
-    {
-        name: "CRC-16: UTF-8",
-        input: UTF8_STR,
-        expectedOutput: "dcf6",
-        recipeConfig: [
-            {
-                "op": "CRC-16 Checksum",
-                "args": []
-            }
-        ]
-    },
-    {
-        name: "CRC-16: all bytes",
-        input: ALL_BYTES,
-        expectedOutput: "bad3",
-        recipeConfig: [
-            {
-                "op": "CRC-16 Checksum",
-                "args": []
-            }
-        ]
-    },
-    {
-        name: "CRC-32: nothing",
-        input: "",
-        expectedOutput: "00000000",
-        recipeConfig: [
-            {
-                "op": "CRC-32 Checksum",
-                "args": []
-            }
-        ]
-    },
-    {
-        name: "CRC-32: basic string",
-        input: BASIC_STRING,
-        expectedOutput: "bf4b739c",
-        recipeConfig: [
-            {
-                "op": "CRC-32 Checksum",
-                "args": []
-            }
-        ]
-    },
-    {
-        name: "CRC-32: UTF-8",
-        input: UTF8_STR,
-        expectedOutput: "87553290",
-        recipeConfig: [
-            {
-                "op": "CRC-32 Checksum",
-                "args": []
-            }
-        ]
-    },
-    {
-        name: "CRC-32: all bytes",
-        input: ALL_BYTES,
-        expectedOutput: "29058c73",
-        recipeConfig: [
-            {
-                "op": "CRC-32 Checksum",
-                "args": []
-            }
-        ]
-    }
-]);

tests/operations/tests/ConvertLeetSpeak.mjs

@@ -0,0 +1,55 @@
+/**
+ * @author bartblaze []
+ * @copyright Crown Copyright 2025
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "Convert to Leet Speak: basic text",
+        input: "leet",
+        expectedOutput: "l337",
+        recipeConfig: [
+            {
+                op: "Convert Leet Speak",
+                args: ["To Leet Speak"]
+            }
+        ]
+    },
+    {
+        name: "Convert from Leet Speak: basic leet",
+        input: "l337",
+        expectedOutput: "leet",
+        recipeConfig: [
+            {
+                op: "Convert Leet Speak",
+                args: ["From Leet Speak"]
+            }
+        ]
+    },
+    {
+        name: "Convert to Leet Speak: basic text, keep case",
+        input: "HELLO",
+        expectedOutput: "H3LL0",
+        recipeConfig: [
+            {
+                op: "Convert Leet Speak",
+                args: ["To Leet Speak"]
+            }
+        ]
+    },
+    {
+        name: "Convert from Leet Speak: basic leet, keep case",
+        input: "H3LL0",
+        expectedOutput: "HeLLo",
+        recipeConfig: [
+            {
+                op: "Convert Leet Speak",
+                args: ["From Leet Speak"]
+            }
+        ]
+    }
+]);
+

tests/operations/tests/Crypt.mjs

@@ -580,8 +580,7 @@ Tag: a8f04c4d93bbef82bef61a103371aef9`,
         input: "",
         expectedOutput: `Invalid key length: 0 bytes
 
-DES uses a key length of 8 bytes (64 bits).
+DES uses a key length of 8 bytes (64 bits).`,
-Triple DES uses a key length of 24 bytes (192 bits).`,
         recipeConfig: [
             {
                 "op": "DES Encrypt",
@@ -674,8 +673,7 @@ Triple DES uses a key length of 24 bytes (192 bits).`,
         input: "",
         expectedOutput: `Invalid key length: 0 bytes
 
-Triple DES uses a key length of 24 bytes (192 bits).
+Triple DES uses a key length of 24 bytes (192 bits).`,
-DES uses a key length of 8 bytes (64 bits).`,
         recipeConfig: [
             {
                 "op": "Triple DES Encrypt",
@@ -1300,8 +1298,7 @@ The following algorithms will be used based on the size of the key:
         input: "",
         expectedOutput: `Invalid key length: 0 bytes
 
-DES uses a key length of 8 bytes (64 bits).
+DES uses a key length of 8 bytes (64 bits).`,
-Triple DES uses a key length of 24 bytes (192 bits).`,
         recipeConfig: [
             {
                 "op": "DES Decrypt",
@@ -1394,8 +1391,7 @@ Triple DES uses a key length of 24 bytes (192 bits).`,
         input: "",
         expectedOutput: `Invalid key length: 0 bytes
 
-Triple DES uses a key length of 24 bytes (192 bits).
+Triple DES uses a key length of 24 bytes (192 bits).`,
-DES uses a key length of 8 bytes (64 bits).`,
         recipeConfig: [
             {
                 "op": "Triple DES Decrypt",
@@ -1579,19 +1575,31 @@ DES uses a key length of 8 bytes (64 bits).`,
         from Crypto.Cipher import Blowfish
         import binascii
 
-        input_data = b"The quick brown fox jumps over the lazy dog."
+        # Blowfish cipher parameters - key, mode, iv, segment_size, nonce
         key = binascii.unhexlify("0011223344556677")
-        iv = binascii.unhexlify("0000000000000000")
         mode = Blowfish.MODE_CBC
+        kwargs = {}
+        iv = binascii.unhexlify("ffeeddccbbaa9988")
+        if mode in [Blowfish.MODE_CBC, Blowfish.MODE_CFB, Blowfish.MODE_OFB]:
+            kwargs = {"iv": iv}
+        if mode == Blowfish.MODE_CFB:
+            kwargs["segment_size"] = 64
+        if mode == Blowfish.MODE_CTR:
+            nonce = binascii.unhexlify("0000000000000000")
+            nonce = nonce[:7]
+            kwargs["nonce"] = nonce
 
+        cipher = Blowfish.new(key, mode, **kwargs)
+
+        # Input data and padding
+        input_data = b"The quick brown fox jumps over the lazy dog."
         if mode == Blowfish.MODE_ECB or mode == Blowfish.MODE_CBC:
             padding_len = 8-(len(input_data) & 7)
             for i in range(padding_len):
                 input_data += bytes([padding_len])
 
-        cipher = Blowfish.new(key, mode)  # set iv, nonce, segment_size etc. here
+        # Encrypted text
         cipher_text = cipher.encrypt(input_data)
-
         cipher_text = binascii.hexlify(cipher_text).decode("UTF-8")
 
         print("Encrypted: {}".format(cipher_text))

tests/operations/tests/DropNthBytes.mjs

@@ -0,0 +1,123 @@
+/**
+ * @author Oshawk [oshawk@protonmail.com]
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+/**
+ * Drop nth bytes tests
+ */
+TestRegister.addTests([
+    {
+        name: "Drop nth bytes: Nothing",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Nothing (apply to each line)",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, true],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Basic single line",
+        input: "0123456789",
+        expectedOutput: "1235679",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Basic single line (apply to each line)",
+        input: "0123456789",
+        expectedOutput: "1235679",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, true],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Complex single line",
+        input: "0123456789",
+        expectedOutput: "01234678",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 5, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Complex single line (apply to each line)",
+        input: "0123456789",
+        expectedOutput: "01234678",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 5, true],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Basic multi line",
+        input: "01234\n56789",
+        expectedOutput: "123\n5689",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Basic multi line (apply to each line)",
+        input: "01234\n56789",
+        expectedOutput: "123\n678",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 0, true],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Complex multi line",
+        input: "01234\n56789",
+        expectedOutput: "012345679",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 5, false],
+            },
+        ],
+    },
+    {
+        name: "Drop nth bytes: Complex multi line (apply to each line)",
+        input: "012345\n6789ab",
+        expectedOutput: "01234\n6789a",
+        recipeConfig: [
+            {
+                op: "Drop nth bytes",
+                args: [4, 5, true],
+            },
+        ],
+    }
+]);

tests/operations/tests/IPv6Transition.mjs

@@ -0,0 +1,63 @@
+/**
+ * IPv6Transition tests.
+ *
+ * @author jb30795
+ *
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "IPv6 Transition: IPv4 to IPv6",
+        input: "198.51.100.7",
+        expectedOutput: "6to4: 2002:c633:6407::/48\nIPv4 Mapped: ::ffff:c633:6407\nIPv4 Translated: ::ffff:0:c633:6407\nNat 64: 64:ff9b::c633:6407",
+        recipeConfig: [
+            {
+                op: "IPv6 Transition Addresses",
+                args: [true, false],
+            },
+        ],
+    }, {
+        name: "IPv6 Transition: IPv4 /24 Range to IPv6",
+        input: "198.51.100.0/24",
+        expectedOutput: "6to4: 2002:c633:6400::/40\nIPv4 Mapped: ::ffff:c633:6400/120\nIPv4 Translated: ::ffff:0:c633:6400/120\nNat 64: 64:ff9b::c633:6400/120",
+        recipeConfig: [
+            {
+                op: "IPv6 Transition Addresses",
+                args: [false, false],
+            },
+        ],
+    }, {
+        name: "IPv6 Transition: IPv4 to IPv6 Remove headers",
+        input: "198.51.100.7",
+        expectedOutput: "2002:c633:6407::/48\n::ffff:c633:6407\n::ffff:0:c633:6407\n64:ff9b::c633:6407",
+        recipeConfig: [
+            {
+                op: "IPv6 Transition Addresses",
+                args: [true, true],
+            },
+        ],
+    }, {
+        name: "IPv6 Transition: IPv6 to IPv4",
+        input: "64:ff9b::c633:6407",
+        expectedOutput: "IPv4: 198.51.100.7",
+        recipeConfig: [
+            {
+                op: "IPv6 Transition Addresses",
+                args: [true, false],
+            },
+        ],
+    }, {
+        name: "IPv6 Transition: MAC to EUI-64",
+        input: "a1:b2:c3:d4:e5:f6",
+        expectedOutput: "EUI-64 Interface ID: a3b2:c3ff:fed4:e5f6",
+        recipeConfig: [
+            {
+                op: "IPv6 Transition Addresses",
+                args: [true, false],
+            },
+        ],
+    },
+]);

tests/operations/tests/JSONtoYAML.mjs

@@ -0,0 +1,41 @@
+/**
+ * YAML tests.
+ *
+ * @author ccarpo [ccarpo@gmx.net]
+ *
+ * @copyright Crown Copyright 2021
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+const EXAMPLE_YAML = `number: 3\nplain: string\nblock: |\n  two\n  lines`;
+const EXAMPLE_JSON = `{ "number": 3, "plain": "string" }`;
+
+TestRegister.addTests([
+    {
+        name: "YAML to JSON",
+        input: EXAMPLE_YAML,
+        expectedOutput: JSON.stringify({
+            "number": 3,
+            "plain": "string",
+            "block": "two\nlines\n"
+        }, null, 4),
+        recipeConfig: [
+            {
+                op: "YAML to JSON",
+                args: [],
+            }
+        ],
+    },
+    {
+        name: "JSON to YAML",
+        input: EXAMPLE_JSON,
+        expectedOutput: `number: 3\nplain: string\n`,
+        recipeConfig: [
+            {
+                op: "JSON to YAML",
+                args: [],
+            }
+        ],
+    },
+]);

tests/operations/tests/JWTSign.mjs

@@ -44,7 +44,18 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Sign",
-                args: [hsKey, "HS256"],
+                args: [hsKey, "HS256", "{}"],
+            }
+        ],
+    },
+    {
+        name: "JWT Sign: HS256 with custom header",
+        input: inputObject,
+        expectedOutput: "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6ImN1c3RvbS5rZXkifQ.eyJTdHJpbmciOiJTb21lU3RyaW5nIiwiTnVtYmVyIjo0MiwiaWF0IjoxfQ.kXln8btJburfRlND8IDZAQ8NZGFFZhvHyooHa6N9za8",
+        recipeConfig: [
+            {
+                op: "JWT Sign",
+                args: [hsKey, "HS256", `{"kid":"custom.key"}`],
             }
         ],
     },
@@ -55,7 +66,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Sign",
-                args: [hsKey, "HS384"],
+                args: [hsKey, "HS384", "{}"],
             }
         ],
     },
@@ -66,7 +77,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Sign",
-                args: [hsKey, "HS512"],
+                args: [hsKey, "HS512", "{}"],
             }
         ],
     },
@@ -77,7 +88,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Sign",
-                args: [esKey, "ES256"],
+                args: [esKey, "ES256", "{}"],
             },
             {
                 op: "JWT Decode",
@@ -92,7 +103,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Sign",
-                args: [esKey, "ES384"],
+                args: [esKey, "ES384", "{}"],
             },
             {
                 op: "JWT Decode",
@@ -107,7 +118,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Sign",
-                args: [esKey, "ES512"],
+                args: [esKey, "ES512", "{}"],
             },
             {
                 op: "JWT Decode",
@@ -122,7 +133,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Sign",
-                args: [rsKey, "RS256"],
+                args: [rsKey, "RS256", "{}"],
             },
             {
                 op: "JWT Decode",
@@ -137,7 +148,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Sign",
-                args: [rsKey, "RS384"],
+                args: [rsKey, "RS384", "{}"],
             },
             {
                 op: "JWT Decode",
@@ -152,7 +163,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Sign",
-                args: [esKey, "RS512"],
+                args: [esKey, "RS512", "{}"],
             },
             {
                 op: "JWT Decode",

tests/operations/tests/LuhnChecksum.mjs

@@ -2,11 +2,392 @@
  * From Decimal tests
  *
  * @author n1073645 [n1073645@gmail.com]
+ * @author k3ach [k3ach@proton.me]
  * @copyright Crown Copyright 2020
  * @licence Apache-2.0
  */
 import TestRegister from "../../lib/TestRegister.mjs";
 
+const testCases = [
+    {
+        radix: 2,
+        input: "01",
+        checksum: "1",
+        checkdigit: "1",
+    }, {
+        radix: 2,
+        input: "001111",
+        checksum: "0",
+        checkdigit: "0",
+    }, {
+        radix: 2,
+        input: "00011101",
+        checksum: "0",
+        checkdigit: "0",
+    }, {
+        radix: 2,
+        input: "0100101101",
+        checksum: "1",
+        checkdigit: "1",
+    }, {
+        radix: 4,
+        input: "0123",
+        checksum: "1",
+        checkdigit: "1",
+    }, {
+        radix: 4,
+        input: "130100",
+        checksum: "2",
+        checkdigit: "2",
+    }, {
+        radix: 4,
+        input: "32020313",
+        checksum: "3",
+        checkdigit: "0",
+    }, {
+        radix: 4,
+        input: "302233210112",
+        checksum: "3",
+        checkdigit: "0",
+    }, {
+        radix: 6,
+        input: "012345",
+        checksum: "4",
+        checkdigit: "4",
+    }, {
+        radix: 6,
+        input: "134255",
+        checksum: "2",
+        checkdigit: "4",
+    }, {
+        radix: 6,
+        input: "15021453",
+        checksum: "5",
+        checkdigit: "4",
+    }, {
+        radix: 6,
+        input: "211450230513",
+        checksum: "3",
+        checkdigit: "1",
+    }, {
+        radix: 8,
+        input: "01234567",
+        checksum: "2",
+        checkdigit: "2",
+    }, {
+        radix: 8,
+        input: "340624",
+        checksum: "0",
+        checkdigit: "4",
+    }, {
+        radix: 8,
+        input: "07260247",
+        checksum: "3",
+        checkdigit: "3",
+    }, {
+        radix: 8,
+        input: "026742114675",
+        checksum: "7",
+        checkdigit: "1",
+    }, {
+        radix: 10,
+        input: "0123456789",
+        checksum: "7",
+        checkdigit: "7",
+    }, {
+        radix: 10,
+        input: "468543",
+        checksum: "7",
+        checkdigit: "4",
+    }, {
+        radix: 10,
+        input: "59377601",
+        checksum: "5",
+        checkdigit: "6",
+    }, {
+        radix: 10,
+        input: "013909981254",
+        checksum: "1",
+        checkdigit: "3",
+    }, {
+        radix: 12,
+        input: "0123456789ab",
+        checksum: "3",
+        checkdigit: "3",
+    }, {
+        radix: 12,
+        input: "284685",
+        checksum: "0",
+        checkdigit: "6",
+    }, {
+        radix: 12,
+        input: "951a2661",
+        checksum: "0",
+        checkdigit: "8",
+    }, {
+        radix: 12,
+        input: "898202676387",
+        checksum: "b",
+        checkdigit: "9",
+    }, {
+        radix: 14,
+        input: "0123456789abcd",
+        checksum: "a",
+        checkdigit: "a",
+    }, {
+        radix: 14,
+        input: "33db25",
+        checksum: "0",
+        checkdigit: "d",
+    }, {
+        radix: 14,
+        input: "0b4ac128",
+        checksum: "b",
+        checkdigit: "3",
+    }, {
+        radix: 14,
+        input: "3d1c6d16160d",
+        checksum: "3",
+        checkdigit: "c",
+    }, {
+        radix: 16,
+        input: "0123456789abcdef",
+        checksum: "4",
+        checkdigit: "4",
+    }, {
+        radix: 16,
+        input: "e1fe64",
+        checksum: "b",
+        checkdigit: "6",
+    }, {
+        radix: 16,
+        input: "241a5dcd",
+        checksum: "1",
+        checkdigit: "9",
+    }, {
+        radix: 16,
+        input: "1fea740e0e1f",
+        checksum: "7",
+        checkdigit: "4",
+    }, {
+        radix: 18,
+        input: "0123456789abcdefgh",
+        checksum: "d",
+        checkdigit: "d",
+    }, {
+        radix: 18,
+        input: "995dgf",
+        checksum: "9",
+        checkdigit: "1",
+    }, {
+        radix: 18,
+        input: "9f80h32h",
+        checksum: "1",
+        checkdigit: "0",
+    }, {
+        radix: 18,
+        input: "5f9428e493g4",
+        checksum: "8",
+        checkdigit: "c",
+    }, {
+        radix: 20,
+        input: "0123456789abcdefghij",
+        checksum: "5",
+        checkdigit: "5",
+    }, {
+        radix: 20,
+        input: "918jci",
+        checksum: "h",
+        checkdigit: "d",
+    }, {
+        radix: 20,
+        input: "jab7j50d",
+        checksum: "g",
+        checkdigit: "j",
+    }, {
+        radix: 20,
+        input: "c56fe85eb6gg",
+        checksum: "g",
+        checkdigit: "5",
+    }, {
+        radix: 22,
+        input: "0123456789abcdefghijkl",
+        checksum: "g",
+        checkdigit: "g",
+    }, {
+        radix: 22,
+        input: "de57le",
+        checksum: "5",
+        checkdigit: "l",
+    }, {
+        radix: 22,
+        input: "e3fg6dfc",
+        checksum: "f",
+        checkdigit: "d",
+    }, {
+        radix: 22,
+        input: "1f8l80ai4kbg",
+        checksum: "l",
+        checkdigit: "f",
+    }, {
+        radix: 24,
+        input: "0123456789abcdefghijklmn",
+        checksum: "6",
+        checkdigit: "6",
+    }, {
+        radix: 24,
+        input: "agne7d",
+        checksum: "4",
+        checkdigit: "f",
+    }, {
+        radix: 24,
+        input: "1l4d9cf4",
+        checksum: "d",
+        checkdigit: "c",
+    }, {
+        radix: 24,
+        input: "blc1j09i3296",
+        checksum: "8",
+        checkdigit: "7",
+    }, {
+        radix: 26,
+        input: "0123456789abcdefghijklmnop",
+        checksum: "j",
+        checkdigit: "j",
+    }, {
+        radix: 26,
+        input: "82n9op",
+        checksum: "i",
+        checkdigit: "2",
+    }, {
+        radix: 26,
+        input: "e9cddn70",
+        checksum: "9",
+        checkdigit: "i",
+    }, {
+        radix: 26,
+        input: "ck0ep419knom",
+        checksum: "p",
+        checkdigit: "g",
+    }, {
+        radix: 28,
+        input: "0123456789abcdefghijklmnopqr",
+        checksum: "7",
+        checkdigit: "7",
+    }, {
+        radix: 28,
+        input: "a6hnoo",
+        checksum: "h",
+        checkdigit: "9",
+    }, {
+        radix: 28,
+        input: "lblc7kh0",
+        checksum: "a",
+        checkdigit: "f",
+    }, {
+        radix: 28,
+        input: "64k5piod3lmf",
+        checksum: "0",
+        checkdigit: "p",
+    }, {
+        radix: 30,
+        input: "0123456789abcdefghijklmnopqrst",
+        checksum: "m",
+        checkdigit: "m",
+    }, {
+        radix: 30,
+        input: "t69j7d",
+        checksum: "9",
+        checkdigit: "s",
+    }, {
+        radix: 30,
+        input: "p54o9ig3",
+        checksum: "a",
+        checkdigit: "o",
+    }, {
+        radix: 30,
+        input: "gc1njrt55030",
+        checksum: "6",
+        checkdigit: "1",
+    }, {
+        radix: 32,
+        input: "0123456789abcdefghijklmnopqrstuv",
+        checksum: "8",
+        checkdigit: "8",
+    }, {
+        radix: 32,
+        input: "rdou19",
+        checksum: "u",
+        checkdigit: "3",
+    }, {
+        radix: 32,
+        input: "ighj0pc7",
+        checksum: "3",
+        checkdigit: "8",
+    }, {
+        radix: 32,
+        input: "op4nn5fvjsrs",
+        checksum: "g",
+        checkdigit: "j",
+    }, {
+        radix: 34,
+        input: "0123456789abcdefghijklmnopqrstuvwx",
+        checksum: "p",
+        checkdigit: "p",
+    }, {
+        radix: 34,
+        input: "nvftj5",
+        checksum: "b",
+        checkdigit: "f",
+    }, {
+        radix: 34,
+        input: "u9v9g162",
+        checksum: "j",
+        checkdigit: "b",
+    }, {
+        radix: 34,
+        input: "o5gqg5d7gjh9",
+        checksum: "5",
+        checkdigit: "q",
+    }, {
+        radix: 36,
+        input: "0123456789abcdefghijklmnopqrstuvwxyz",
+        checksum: "9",
+        checkdigit: "9",
+    }, {
+        radix: 36,
+        input: "29zehu",
+        checksum: "i",
+        checkdigit: "j",
+    }, {
+        radix: 36,
+        input: "1snmikbu",
+        checksum: "s",
+        checkdigit: "v",
+    }, {
+        radix: 36,
+        input: "jpkar545q7gb",
+        checksum: "3",
+        checkdigit: "d",
+    },
+];
+
+testCases.forEach(element => {
+    TestRegister.addTests([
+        {
+            name: "Luhn Checksum Mod " + element.radix + " on " + element.input,
+            input: element.input,
+            expectedOutput: "Checksum: " + element.checksum + "\nCheckdigit: " + element.checkdigit + "\nLuhn Validated String: " + element.input + element.checkdigit,
+            recipeConfig: [
+                {
+                    op: "Luhn Checksum",
+                    args: [element.radix]
+                },
+            ],
+        },
+    ]);
+});
+
 TestRegister.addTests([
     {
         name: "Luhn Checksum on standard data",
@@ -15,7 +396,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "Luhn Checksum",
-                args: []
+                args: [10]
             },
         ],
     },
@@ -26,7 +407,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "Luhn Checksum",
-                args: []
+                args: [10]
             },
         ],
     },
@@ -37,18 +418,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "Luhn Checksum",
-                args: []
+                args: [10]
-            },
-        ],
-    },
-    {
-        name: "Luhn Checksum on invalid data",
-        input: "35641709b012469",
-        expectedOutput: "Character: b is not a digit.",
-        recipeConfig: [
-            {
-                op: "Luhn Checksum",
-                args: []
             },
         ],
     },
@@ -59,8 +429,8 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "Luhn Checksum",
-                args: []
+                args: [10]
             },
         ],
-    }
+    },
 ]);

tests/operations/tests/MIMEDecoding.mjs

@@ -0,0 +1,89 @@
+/**
+ * MIME Header Decoding tests
+ *
+ * @author mshwed [m@ttshwed.com]
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "Encoded comments",
+        input: "(=?ISO-8859-1?Q?a?=)",
+        expectedOutput: "(a)",
+        recipeConfig: [
+            {
+                "op": "MIME Decoding",
+                "args": []
+            }
+        ]
+    },
+    {
+        name: "Encoded adjacent comments whitespace",
+        input: "(=?ISO-8859-1?Q?a?= b)",
+        expectedOutput: "(a b)",
+        recipeConfig: [
+            {
+                "op": "MIME Decoding",
+                "args": []
+            }
+        ]
+    },
+    {
+        name: "Encoded adjacent single whitespace ignored",
+        input: "(=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=)",
+        expectedOutput: "(ab)",
+        recipeConfig: [
+            {
+                "op": "MIME Decoding",
+                "args": []
+            }
+        ]
+    },
+    {
+        name: "Encoded adjacent double whitespace ignored",
+        input: "(=?ISO-8859-1?Q?a?=  =?ISO-8859-1?Q?b?=)",
+        expectedOutput: "(ab)",
+        recipeConfig: [
+            {
+                "op": "MIME Decoding",
+                "args": []
+            }
+        ]
+    },
+    {
+        name: "Encoded adjacent CRLF whitespace ignored",
+        input: "(=?ISO-8859-1?Q?a?=\r\n =?ISO-8859-1?Q?b?=)",
+        expectedOutput: "(ab)",
+        recipeConfig: [
+            {
+                "op": "MIME Decoding",
+                "args": []
+            }
+        ]
+    },
+    {
+        name: "UTF-8 Encodings Multiple Headers",
+        input: "=?utf-8?q?=C3=89ric?= <eric@example.org>, =?utf-8?q?Ana=C3=AFs?= <anais@example.org>",
+        expectedOutput: "Éric <eric@example.org>, Anaïs <anais@example.org>",
+        recipeConfig: [
+            {
+                "op": "MIME Decoding",
+                "args": []
+            }
+        ]
+    },
+    {
+        name: "ISO Decoding",
+        input: "From: =?US-ASCII?Q?Keith_Moore?= <moore@cs.utk.edu>\nTo: =?ISO-8859-1?Q?Keld_J=F8rn_Simonsen?= <keld@dkuug.dk>\nCC: =?ISO-8859-1?Q?Andr=E9?= Pirard <PIRARD@vm1.ulg.ac.be>\nSubject: =?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=\n=?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=",
+        expectedOutput: "From: Keith Moore <moore@cs.utk.edu>\nTo: Keld Jørn Simonsen <keld@dkuug.dk>\nCC: André Pirard <PIRARD@vm1.ulg.ac.be>\nSubject: If you can read this you understand the example.",
+        recipeConfig: [
+            {
+                "op": "MIME Decoding",
+                "args": []
+            }
+        ]
+    }
+]);

tests/operations/tests/Modhex.mjs

@@ -0,0 +1,150 @@
+/**
+ * Modhex operation tests.
+ * @author linuxgemini [ilteris@asenkron.com.tr]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "ASCII to Modhex stream",
+        input: "aberystwyth",
+        expectedOutput: "hbhdhgidikieifiiikifhj",
+        recipeConfig: [
+            {
+                "op": "To Modhex",
+                "args": [
+                    "None",
+                    0
+                ]
+            },
+        ]
+    },
+    {
+        name: "ASCII to Modhex with colon deliminator",
+        input: "aberystwyth",
+        expectedOutput: "hb:hd:hg:id:ik:ie:if:ii:ik:if:hj",
+        recipeConfig: [
+            {
+                "op": "To Modhex",
+                "args": [
+                    "Colon",
+                    0
+                ]
+            }
+        ]
+    },
+    {
+        name: "Modhex stream to UTF-8",
+        input: "uhkgkbuhkgkbugltlkugltkc",
+        expectedOutput: "救救孩子",
+        recipeConfig: [
+            {
+                "op": "From Modhex",
+                "args": [
+                    "Auto"
+                ]
+            }
+        ]
+
+    },
+    {
+        name: "Mixed case Modhex stream to UTF-8",
+        input: "uhKGkbUHkgkBUGltlkugltkc",
+        expectedOutput: "救救孩子",
+        recipeConfig: [
+            {
+                "op": "From Modhex",
+                "args": [
+                    "Auto"
+                ]
+            }
+        ]
+
+    },
+    {
+        name: "Mutiline Modhex with comma to ASCII (Auto Mode)",
+        input: "fk,dc,ie,hb,ii,dc,ht,ik,ie,hg,hr,hh,dc,ie,hk,\n\
+if,if,hk,hu,hi,dc,hk,hu,dc,if,hj,hg,dc,he,id,\n\
+hv,if,he,hj,dc,hv,hh,dc,if,hj,hg,dc,if,hj,hk,\n\
+ie,dc,hh,hk,hi,dc,if,id,hg,hg,dr,dc,ie,if,hb,\n\
+id,ih,hk,hu,hi,dc,if,hv,dc,hf,hg,hb,if,hj,dr,\n\
+dc,hl,ig,ie,if,dc,hd,hg,he,hb,ig,ie,hg,dc,fk,\n\
+dc,he,hv,ig,hr,hf,hu,di,if,dc,ht,hb,hn,hg,dc,\n\
+ig,ic,dc,ht,ik,dc,ht,hk,hu,hf,dc,ii,hj,hk,he,\n\
+hj,dc,hv,hh,dc,if,hj,hg,dc,hh,hk,hi,ie,dc,fk,\n\
+dc,ii,hv,ig,hr,hf,dc,he,hj,hv,hv,ie,hg,du",
+        expectedOutput: "I saw myself sitting in the crotch of the this fig tree, starving to death, just because I couldn't make up my mind which of the figs I would choose.",
+        recipeConfig: [
+            {
+                "op": "From Modhex",
+                "args": [
+                    "Auto"
+                ]
+            }
+        ]
+
+    },
+    {
+        name: "Mutiline Modhex with percent to ASCII (Percent Mode)",
+        input: "fk%dc%ie%hb%ii%dc%ht%ik%ie%hg%hr%hh%dc%ie%hk%\n\
+if%if%hk%hu%hi%dc%hk%hu%dc%if%hj%hg%dc%he%id%\n\
+hv%if%he%hj%dc%hv%hh%dc%if%hj%hg%dc%if%hj%hk%\n\
+ie%dc%hh%hk%hi%dc%if%id%hg%hg%dr%dc%ie%if%hb%\n\
+id%ih%hk%hu%hi%dc%if%hv%dc%hf%hg%hb%if%hj%dr%\n\
+dc%hl%ig%ie%if%dc%hd%hg%he%hb%ig%ie%hg%dc%fk%\n\
+dc%he%hv%ig%hr%hf%hu%di%if%dc%ht%hb%hn%hg%dc%\n\
+ig%ic%dc%ht%ik%dc%ht%hk%hu%hf%dc%ii%hj%hk%he%\n\
+hj%dc%hv%hh%dc%if%hj%hg%dc%hh%hk%hi%ie%dc%fk%\n\
+dc%ii%hv%ig%hr%hf%dc%he%hj%hv%hv%ie%hg%du",
+        expectedOutput: "I saw myself sitting in the crotch of the this fig tree, starving to death, just because I couldn't make up my mind which of the figs I would choose.",
+        recipeConfig: [
+            {
+                "op": "From Modhex",
+                "args": [
+                    "Percent"
+                ]
+            }
+        ]
+
+    },
+    {
+        name: "Mutiline Modhex with semicolon to ASCII (Semi-colon Mode)",
+        input: "fk;dc;ie;hb;ii;dc;ht;ik;ie;hg;hr;hh;dc;ie;hk;\n\
+if;if;hk;hu;hi;dc;hk;hu;dc;if;hj;hg;dc;he;id;\n\
+hv;if;he;hj;dc;hv;hh;dc;if;hj;hg;dc;if;hj;hk;\n\
+ie;dc;hh;hk;hi;dc;if;id;hg;hg;dr;dc;ie;if;hb;\n\
+id;ih;hk;hu;hi;dc;if;hv;dc;hf;hg;hb;if;hj;dr;\n\
+dc;hl;ig;ie;if;dc;hd;hg;he;hb;ig;ie;hg;dc;fk;\n\
+dc;he;hv;ig;hr;hf;hu;di;if;dc;ht;hb;hn;hg;dc;\n\
+ig;ic;dc;ht;ik;dc;ht;hk;hu;hf;dc;ii;hj;hk;he;\n\
+hj;dc;hv;hh;dc;if;hj;hg;dc;hh;hk;hi;ie;dc;fk;\n\
+dc;ii;hv;ig;hr;hf;dc;he;hj;hv;hv;ie;hg;du",
+        expectedOutput: "I saw myself sitting in the crotch of the this fig tree, starving to death, just because I couldn't make up my mind which of the figs I would choose.",
+        recipeConfig: [
+            {
+                "op": "From Modhex",
+                "args": [
+                    "Semi-colon"
+                ]
+            }
+        ]
+
+    },
+    {
+        name: "ASCII to Modhex with comma and line breaks",
+        input: "aberystwyth",
+        expectedOutput: "hb,hd,hg,id,\nik,ie,if,ii,\nik,if,hj",
+        recipeConfig: [
+            {
+                "op": "To Modhex",
+                "args": [
+                    "Comma",
+                    4
+                ]
+            }
+        ]
+    },
+]);

tests/operations/tests/OTP.mjs

@@ -11,12 +11,12 @@ import TestRegister from "../../lib/TestRegister.mjs";
 TestRegister.addTests([
     {
         name: "Generate HOTP",
-        input: "12345678901234567890",
+        input: "JBSWY3DPEHPK3PXP",
-        expectedOutput: "URI: otpauth://hotp/OTPAuthentication?secret=GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ\n\nPassword: 755224",
+        expectedOutput: `URI: otpauth://hotp/?secret=JBSWY3DPEHPK3PXP&algorithm=SHA1&digits=6&counter=0\n\nPassword: 282760`,
         recipeConfig: [
             {
                 op: "Generate HOTP",
-                args: ["", 32, 6, 0],
+                args: ["", 6, 0], // [Name, Code length, Counter]
             },
         ],
     },

tests/operations/tests/PHPSerialize.mjs

@@ -0,0 +1,112 @@
+/**
+ * PHP Serialization tests.
+ *
+ * @author brun0ne [brunonblok@gmail.com]
+ *
+ * @copyright Crown Copyright 2023
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "PHP Serialize empty array",
+        input: "[]",
+        expectedOutput: "a:0:{}",
+        recipeConfig: [
+            {
+                op: "PHP Serialize",
+                args: []
+            }
+        ]
+    },
+    {
+        name: "PHP Serialize empty object",
+        input: "{}",
+        expectedOutput: "a:0:{}",
+        recipeConfig: [
+            {
+                op: "PHP Serialize",
+                args: []
+            }
+        ]
+    },
+    {
+        name: "PHP Serialize null",
+        input: "null",
+        expectedOutput: "N;",
+        recipeConfig: [
+            {
+                op: "PHP Serialize",
+                args: []
+            }
+        ]
+    },
+    {
+        name: "PHP Serialize integer",
+        input: "10",
+        expectedOutput: "i:10;",
+        recipeConfig: [
+            {
+                op: "PHP Serialize",
+                args: []
+            }
+        ]
+    },
+    {
+        name: "PHP Serialize float",
+        input: "14.523",
+        expectedOutput: "d:14.523;",
+        recipeConfig: [
+            {
+                op: "PHP Serialize",
+                args: []
+            }
+        ]
+    },
+    {
+        name: "PHP Serialize boolean",
+        input: "[true, false]",
+        expectedOutput: "a:2:{i:0;b:1;i:1;b:0;}",
+        recipeConfig: [
+            {
+                op: "PHP Serialize",
+                args: []
+            }
+        ]
+    },
+    {
+        name: "PHP Serialize string",
+        input: "\"Test string to serialize\"",
+        expectedOutput: "s:24:\"Test string to serialize\";",
+        recipeConfig: [
+            {
+                op: "PHP Serialize",
+                args: []
+            }
+        ]
+    },
+    {
+        name: "PHP Serialize object",
+        input: "{\"a\": 10,\"0\": {\"ab\": true}}",
+        expectedOutput: "a:2:{s:1:\"0\";a:1:{s:2:\"ab\";b:1;}s:1:\"a\";i:10;}",
+        recipeConfig: [
+            {
+                op: "PHP Serialize",
+                args: []
+            }
+        ]
+    },
+    {
+        name: "PHP Serialize array",
+        input: "[1,\"abc\",true,{\"x\":1,\"y\":2}]",
+        expectedOutput: "a:4:{i:0;i:1;i:1;s:3:\"abc\";i:2;b:1;i:3;a:2:{s:1:\"x\";i:1;s:1:\"y\";i:2;}}",
+        recipeConfig: [
+            {
+                op: "PHP Serialize",
+                args: []
+            }
+        ]
+    }
+]);

tests/operations/tests/ParseX509CRL.mjs

@@ -0,0 +1,331 @@
+/**
+ * Parse X.509 CRL tests.
+ *
+ * @author robinsandhu
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+const IN_CRL_PEM_RSA = `-----BEGIN X509 CRL-----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+-----END X509 CRL-----`;
+
+const OUT_CRL_PEM_RSA = `Certificate Revocation List (CRL):
+    Version: 2 (0x1)
+    Signature Algorithm: SHA256withRSA
+    Issuer:
+        C  = UK
+        ST = London
+        O  = BB
+        CN = Test Root CA
+    Last Update: Sun, 25 Aug 2024 11:49:10 GMT
+    Next Update: Tue, 24 Sep 2024 11:49:10 GMT
+	CRL extensions:
+        2.5.29.46:
+        	Unsupported CRL extension. Try openssl CLI.
+        X509v3 Authority Key Identifier:
+        	keyid:B8:C9:AD:FD:A8:50:54:D5:85:6E:34:8B:4C:60:2F:B0:49:B6:87:46
+        	DirName:/C=UK/ST=London/O=BB/CN=Test Root CA
+        	serial:37:5D:4B:F6:BD:7C:11:7C:CC:46:1A:FF:D7:2F:2C:26:F8:1E:4B:3D
+        X509v3 CRL Distribution Points:
+        	Full Name:
+        		URI:http://example.com/full-crl
+        	Full Name:
+        		URI:ldap://example.com/full-crl
+        	Full Name:
+        		IP:127.0.0.1
+        X509v3 CRL Number:
+        	1E3C
+        issuerAltName:
+        	Unsupported CRL extension. Try openssl CLI.
+Revoked Certificates:
+    Serial Number: 1000
+        Revocation Date: Sun, 25 Aug 2024 03:23:08 GMT
+    	CRL entry extensions:
+            X509v3 CRL Reason Code:
+                Certificate Hold
+            Hold Instruction Code:
+            	Hold Instruction Reject
+Signature Value:
+        03:1b:2b:fb:d9:c4:2d:45:56:84:57:a4:c3:2e:86:b2:a1:fc:
+        c4:e7:fa:12:a1:a3:45:a1:1d:5f:8f:56:98:1e:34:9b:65:5a:
+        8c:e9:0a:f1:41:c6:a1:5c:99:ce:80:c8:da:bf:dc:f0:e3:d7:
+        52:d6:e9:2b:47:e9:bc:49:77:49:95:39:8f:f0:bc:25:b6:5a:
+        64:51:6b:10:67:87:7d:21:2a:75:51:c5:8e:88:69:6b:03:5c:
+        1b:8d:50:b3:e6:13:db:54:c1:a8:7d:61:0f:9c:95:23:b8:23:
+        56:f7:ca:20:24:5f:c4:3a:65:e6:81:82:97:10:42:54:e4:95:
+        81:5b:4b:6d:ef:6a:e3:8b:82:04:9d:64:52:4a:1c:f5:5c:f8:
+        ec:7b:fb:27:27:24:82:a5:57:90:e4:56:1e:dd:92:14:d0:0b:
+        c6:53:04:cc:e1:10:4e:9b:82:e4:a7:1b:e2:2e:e1:4c:25:05:
+        fa:4a:64:22:fa:f4:d8:b2:48:9a:ad:00:6a:ac:ec:e9:c0:bf:
+        0d:c7:49:89:13:cf:c9:f6:8d:f1:f4:2b:c8:5b:fb:ea:08:3d:
+        8b:cc:d9:71:be:9c:5b:8d:ab:be:e9:a2:cb:0f:bb:9e:76:5f:
+        9a:ae:77:c1:e6:eb:e5:f0:87:69:78:59:93:8e:c0:48:e2:43:
+        e8:60:b9:71:7f:6b:8d:ed:6a:19:18:14:2d:74:61:a9:cb:ca:
+        9f:7d:7d:b3:68:97:8f:71:52:b4:30:e8:ac:a1:a0:b0:25:76:
+        cd:89:a8:b5:7d:7b:13:10:7d:f0:27:02:80:11:39:db:33:2d:
+        45:98:a5:c2:13:86:7a:1f:26:c7:7a:93:97:45:b6:07:cb:8a:
+        28:0a:b9:04:c9:a2:ce:24:81:cd:0b:7b:d3:42:4f:8a:bb:94:
+        45:95:db:43:57:c7:d6:7e:e9:28:fe:b0:18:48:76:7b:d4:df:
+        40:c9:4d:db:48:44:23:e0:8c:b7:ed:5b:1b:40:69:b7:90:1f:
+        8b:01:3c:53:29:10:fd:6b:e9:57:17:49:ae:08:f4:24:cd:32:
+        03:7e:ca:7c:2f:17:0f:e7:26:6a:f2:79:fe:0a:e8:ad:b8:f7:
+        b7:4c:c1:74:ae:db:97:e6:38:e5:55:3f:e7:f9:97:e5:94:77:
+        3b:77:9a:d5:17:25:3c:cd:e1:28:c4:44:7c:f9:de:3a:5a:5a:
+        9f:aa:f7:75:5c:05:a8:43:7f:4d:e4:ee:e3:ab:ee:0d:e2:9a:
+        12:bd:f2:26:43:85:7f:2d:25:49:83:e1:3e:1c:e1:53:9b:c3:
+        47:98:9b:c6:ab:f0:c5:93:73:9c:8d:80:75:39:d9:2c:47:fc:
+        2d:1a:a7:4d:5a:35:ab:1d`;
+
+const IN_CRL_PEM_RSA_CRL_REASON_AND_INVALIDITY_DATE = `-----BEGIN X509 CRL-----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+-----END X509 CRL-----`;
+
+const OUT_CRL_PEM_RSA_CRL_REASON_AND_INVALIDITY_DATE = `Certificate Revocation List (CRL):
+    Version: 2 (0x1)
+    Signature Algorithm: SHA256withRSA
+    Issuer:
+        C  = UK
+        ST = London
+        O  = BB
+        CN = Test Root CA
+    Last Update: Sun, 25 Aug 2024 12:08:56 GMT
+    Next Update: Tue, 24 Sep 2024 12:08:56 GMT
+	CRL extensions:
+        2.5.29.46:
+        	Unsupported CRL extension. Try openssl CLI.
+        X509v3 Authority Key Identifier:
+        	keyid:B8:C9:AD:FD:A8:50:54:D5:85:6E:34:8B:4C:60:2F:B0:49:B6:87:46
+        	DirName:/C=UK/ST=London/O=BB/CN=Test Root CA
+        	serial:37:5D:4B:F6:BD:7C:11:7C:CC:46:1A:FF:D7:2F:2C:26:F8:1E:4B:3D
+        X509v3 CRL Distribution Points:
+        	Full Name:
+        		URI:http://example.com/full-crl
+        	Full Name:
+        		URI:ldap://example.com/full-crl
+        	Full Name:
+        		IP:127.0.0.1
+        X509v3 CRL Number:
+        	1E3D
+        issuerAltName:
+        	Unsupported CRL extension. Try openssl CLI.
+Revoked Certificates:
+    Serial Number: 1000
+        Revocation Date: Sun, 25 Aug 2024 12:08:48 GMT
+    	CRL entry extensions:
+            X509v3 CRL Reason Code:
+                Key Compromise
+            Invalidity Date:
+            	Sun, 25 Aug 2024 00:00:00 GMT
+Signature Value:
+        72:2e:9e:c9:59:09:81:d4:d8:65:2c:00:87:eb:31:4e:7b:7d:
+        72:09:35:72:c4:94:2d:82:e8:ed:4a:b8:b5:2c:db:ba:23:0c:
+        c1:1a:c2:81:40:89:77:b9:cc:0c:c4:fb:e8:67:39:6e:8c:d2:
+        e6:b2:15:13:de:74:a8:81:5d:3f:e6:7d:6a:d0:6c:a3:e5:88:
+        b3:da:2c:3c:9a:62:89:2e:61:99:f4:ec:f7:42:81:b1:80:5c:
+        30:d3:fd:31:fd:5c:11:1e:e4:b6:87:0f:80:ec:90:7c:b4:ef:
+        f6:9d:6d:e8:4d:c9:6f:4b:9e:65:47:e5:6d:90:38:d4:37:9f:
+        3e:62:5d:92:42:4b:2f:6f:7a:83:e9:b1:c7:25:30:9a:3f:b0:
+        ec:92:5b:34:7d:d0:48:a1:82:03:bd:97:a3:ad:36:12:4b:34:
+        d7:fc:ac:38:ef:7e:4f:d0:60:4c:86:3e:f3:54:5f:1a:cc:6c:
+        f6:3c:5a:52:21:28:38:86:e2:4c:ca:9e:c4:0c:a6:5f:d9:cd:
+        9d:9e:4b:b0:98:45:25:3d:01:01:2d:7d:b9:8f:f2:25:f3:53:
+        b1:7d:55:45:8d:af:b0:51:a8:1a:1a:d8:c4:3c:6c:b9:82:c5:
+        3c:cc:5c:24:5a:18:da:0f:93:c6:05:b6:6f:9d:3f:84:0e:c3:
+        ad:24:f5:3b:3a:df:ec:04:77:f3:5e:a5:2d:32:b7:e6:cf:f4:
+        bf:1a:c4:3e:40:2a:67:06:f6:ab:07:2f:50:62:e9:3d:33:47:
+        8f:04:6c:b7:dc:25:10:a6:33:d4:2f:1b:89:25:50:07:c4:da:
+        1e:b4:70:af:ee:e7:67:83:63:e2:e0:3f:2f:0c:d7:f3:6c:cc:
+        07:b7:b1:ee:ac:ca:34:0a:c4:a3:bb:e7:0b:e2:b9:c8:7e:cc:
+        f4:d9:1a:c3:f5:60:bc:e0:ac:41:2d:69:2a:0b:b1:e2:20:a1:
+        88:a4:5e:f8:d1:87:38:06:58:95:13:51:c3:68:e2:b2:23:a1:
+        44:7e:de:5a:b2:3d:ce:81:7c:26:07:0e:e9:56:5c:52:35:60:
+        02:68:0d:af:38:59:1d:37:f5:79:5d:96:63:54:97:51:27:19:
+        20:11:f0:af:b0:95:5e:9c:5a:7c:34:3e:a0:98:99:96:ba:6e:
+        ed:a8:ce:72:b6:68:97:8c:fb:5e:8e:c3:e9:56:ae:08:72:51:
+        be:62:19:eb:b4:54:3d:4c:31:2e:0a:b3:6c:44:81:86:18:3a:
+        1d:c9:7a:b5:fa:41:97:63:4c:3c:46:a1:84:6f:b2:78:3a:0f:
+        cc:ea:be:0b:30:02:8f:90:ee:de:d2:71:22:6d:3a:97:77:68:
+        a0:bd:1d:9e:e6:9f:b2:2b`;
+
+const IN_CRL_PEM_RSA_CRL_EXTENSIONS = `-----BEGIN X509 CRL-----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+-----END X509 CRL-----`;
+
+const OUT_CRL_PEM_RSA_CRL_EXTENSIONS = `Certificate Revocation List (CRL):
+    Version: 2 (0x1)
+    Signature Algorithm: SHA256withRSA
+    Issuer:
+        C  = UK
+        ST = London
+        O  = BB
+        CN = Test Root CA
+    Last Update: Sun, 25 Aug 2024 12:37:10 GMT
+    Next Update: Tue, 24 Sep 2024 12:37:10 GMT
+	CRL extensions:
+        2.5.29.46:
+        	Unsupported CRL extension. Try openssl CLI.
+        X509v3 Authority Key Identifier:
+        	keyid:B8:C9:AD:FD:A8:50:54:D5:85:6E:34:8B:4C:60:2F:B0:49:B6:87:46
+        	DirName:/C=UK/ST=London/O=BB/CN=Test Root CA
+        	serial:37:5D:4B:F6:BD:7C:11:7C:CC:46:1A:FF:D7:2F:2C:26:F8:1E:4B:3D
+        X509v3 CRL Distribution Points:
+            Full Name:
+                URI:http://example.com/full-crl
+            Full Name:
+                URI:ldap://example.com/full-crl
+            Full Name:
+                IP:127.0.0.1
+        X509v3 CRL Number:
+        	1E42
+        X509v3 Issuer Alternative Name:
+            OtherName:1.2.3.4.5::CustomName
+            EMAIL:ca@example.com
+            URI:http://example.com
+            DNS:ca.example.com
+            IP:192.168.1.1
+            DIR:/C=US/ST=ExampleState/L=ExampleCity/O=ExampleOrg/OU=ExampleUnit/CN=ExampleCommonName
+Revoked Certificates:
+    Serial Number: 1000
+        Revocation Date: Sun, 25 Aug 2024 12:08:48 GMT
+    	CRL entry extensions:
+            X509v3 CRL Reason Code:
+                Key Compromise
+            Invalidity Date:
+            	Sun, 25 Aug 2024 00:00:00 GMT
+Signature Value:
+        5f:fd:2f:86:86:98:87:76:8a:0c:3b:f8:c7:c3:c6:89:1e:bc:
+        82:64:25:7f:cc:92:61:e9:5c:19:75:6f:88:4b:f3:91:46:0f:
+        b3:8f:0a:69:f8:ed:5c:c2:59:e8:e5:73:f0:10:07:b9:96:c9:
+        4b:a0:be:b5:44:ab:f1:62:08:ef:1a:f0:58:9e:ca:3c:39:b8:
+        26:33:d1:e8:8d:9e:eb:c7:55:11:8c:da:63:84:92:20:34:23:
+        fa:e7:17:90:05:07:56:1f:08:51:97:3f:24:64:5c:d4:5b:38:
+        11:3d:d6:68:4e:ce:1d:47:f4:f5:f6:a9:59:e3:e6:5d:ca:b0:
+        f1:3f:ed:8b:ad:79:a7:11:d1:39:1f:91:12:5a:05:72:e2:73:
+        ee:45:fc:20:95:fc:9f:e2:61:1e:cb:9d:cb:8b:52:58:41:7e:
+        ca:2c:1b:fb:9c:1c:be:f4:13:2b:65:7d:7e:82:05:66:37:90:
+        16:e6:8f:b9:dd:e3:de:d3:40:6d:fd:db:e9:bd:c6:9e:cc:22:
+        c2:40:4b:ed:ea:13:3c:09:01:f9:e2:eb:35:15:d1:f5:a1:fe:
+        e7:0e:97:c0:48:8c:71:21:f7:b5:6a:23:7f:bc:cb:38:5d:5d:
+        f9:05:da:09:1f:a6:4a:89:41:8d:3e:e4:e3:b5:55:24:58:4e:
+        54:0d:95:dd:d0:8c:df:d5:54:98:da:b5:f1:f2:69:77:cf:0b:
+        1e:15:10:a5:b5:91:66:28:fb:4c:f1:3b:84:8b:48:1f:fe:4b:
+        fa:3d:f5:b0:9e:37:2d:4c:5e:a1:2f:cb:91:e8:0f:01:47:78:
+        f5:c6:b0:01:0f:1d:63:dd:8f:b1:16:9b:b8:3d:4f:f1:65:d6:
+        24:91:ea:1a:68:86:f0:c3:2b:82:da:19:d5:61:ce:f0:ab:68:
+        b2:21:f0:7e:d7:5b:72:b3:b6:f6:6f:0d:07:a3:61:00:20:00:
+        35:b4:50:ed:2b:14:72:75:5d:78:4a:61:2a:97:34:69:df:0e:
+        df:b7:71:1a:6d:d9:7c:52:c6:de:47:26:d1:e5:6a:d8:88:db:
+        93:ee:04:c3:56:57:66:68:77:84:47:07:ff:14:12:fb:35:28:
+        2e:dd:73:09:00:88:21:18:f8:4d:e8:ff:39:02:ad:d6:7f:f1:
+        7b:4d:7f:96:b8:59:23:7f:0f:ba:4f:b1:fb:0e:e9:21:3e:ee:
+        5c:64:27:e5:10:71:92:d7:03:3f:1b:e4:0a:cf:4e:55:ad:d8:
+        77:49:20:11:15:b3:6e:4a:14:09:22:cf:29:5d:86:70:1c:34:
+        71:64:ed:73:7d:e1:e4:cb:35:e0:fa:85:46:c5:2f:da:4d:1e:
+        24:a6:2a:ee:40:f5:85:b4`;
+
+
+TestRegister.addTests([
+    {
+        name: "Parse X.509 CRL: Example PEM encoded CRL with RSA signature",
+        input: IN_CRL_PEM_RSA,
+        expectedOutput: OUT_CRL_PEM_RSA,
+        recipeConfig: [
+            {
+                "op": "Parse X.509 CRL",
+                "args": ["PEM"]
+            }
+        ]
+    },
+    {
+        name: "Parse X.509 CRL: Example PEM encoded CRL with RSA signature, CRL Reason and Invalidity Date",
+        input: IN_CRL_PEM_RSA_CRL_REASON_AND_INVALIDITY_DATE,
+        expectedOutput: OUT_CRL_PEM_RSA_CRL_REASON_AND_INVALIDITY_DATE,
+        recipeConfig: [
+            {
+                "op": "Parse X.509 CRL",
+                "args": ["PEM"]
+            }
+        ]
+    },
+    {
+        name: "Parse X.509 CRL: Example PEM encoded CRL with RSA signature and CRL Extensions",
+        input: IN_CRL_PEM_RSA_CRL_EXTENSIONS,
+        expectedOutput: OUT_CRL_PEM_RSA_CRL_EXTENSIONS,
+        recipeConfig: [
+            {
+                "op": "Parse X.509 CRL",
+                "args": ["PEM"]
+            }
+        ]
+    },
+]);

tests/operations/tests/Rotate.mjs

@@ -135,10 +135,21 @@ TestRegister.addTests([
             },
         ],
     },
+    {
+        name: "ROT13: no shift amount",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        expectedOutput: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        recipeConfig: [
+            {
+                op: "ROT13",
+                args: [true, true, true, 0]
+            },
+        ],
+    },
     {
         name: "ROT13: normal",
-        input: "The Quick Brown Fox Jumped Over The Lazy Dog.",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
-        expectedOutput: "Gur Dhvpx Oebja Sbk Whzcrq Bire Gur Ynml Qbt.",
+        expectedOutput: "Gur Dhvpx Oebja Sbk Whzcrq Bire Gur Ynml Qbt. 3456789012",
         recipeConfig: [
             {
                 op: "ROT13",
@@ -146,10 +157,21 @@ TestRegister.addTests([
             },
         ],
     },
+    {
+        name: "ROT13: negative shift amount",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        expectedOutput: "Gur Dhvpx Oebja Sbk Whzcrq Bire Gur Ynml Qbt. 7890123456",
+        recipeConfig: [
+            {
+                op: "ROT13",
+                args: [true, true, true, -13]
+            },
+        ],
+    },
     {
         name: "ROT13: full loop",
-        input: "The Quick Brown Fox Jumped Over The Lazy Dog.",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
-        expectedOutput: "The Quick Brown Fox Jumped Over The Lazy Dog.",
+        expectedOutput: "The Quick Brown Fox Jumped Over The Lazy Dog. 6789012345",
         recipeConfig: [
             {
                 op: "ROT13",
@@ -157,10 +179,21 @@ TestRegister.addTests([
             },
         ],
     },
+    {
+        name: "ROT13: full loop (negative shift amount)",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        expectedOutput: "The Quick Brown Fox Jumped Over The Lazy Dog. 4567890123",
+        recipeConfig: [
+            {
+                op: "ROT13",
+                args: [true, true, true, -26]
+            },
+        ],
+    },
     {
         name: "ROT13: lowercase only",
-        input: "The Quick Brown Fox Jumped Over The Lazy Dog.",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
-        expectedOutput: "Tur Qhvpx Bebja Fbk Jhzcrq Oire Tur Lnml Dbt.",
+        expectedOutput: "Tur Qhvpx Bebja Fbk Jhzcrq Oire Tur Lnml Dbt. 0123456789",
         recipeConfig: [
             {
                 op: "ROT13",
@@ -170,8 +203,8 @@ TestRegister.addTests([
     },
     {
         name: "ROT13: uppercase only",
-        input: "The Quick Brown Fox Jumped Over The Lazy Dog.",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
-        expectedOutput: "Ghe Duick Orown Sox Wumped Bver Ghe Yazy Qog.",
+        expectedOutput: "Ghe Duick Orown Sox Wumped Bver Ghe Yazy Qog. 0123456789",
         recipeConfig: [
             {
                 op: "ROT13",
@@ -179,6 +212,50 @@ TestRegister.addTests([
             },
         ],
     },
+    {
+        name: "ROT13: numbers only",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        expectedOutput: "The Quick Brown Fox Jumped Over The Lazy Dog. 5678901234",
+        recipeConfig: [
+            {
+                op: "ROT13",
+                args: [false, false, true, 5]
+            },
+        ],
+    },
+    {
+        name: "ROT13: numbers only (negative shift amount)",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        expectedOutput: "The Quick Brown Fox Jumped Over The Lazy Dog. 5678901234",
+        recipeConfig: [
+            {
+                op: "ROT13",
+                args: [false, false, true, 5]
+            },
+        ],
+    },
+    {
+        name: "ROT13: numbers only loop",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        expectedOutput: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        recipeConfig: [
+            {
+                op: "ROT13",
+                args: [false, false, true, 10]
+            },
+        ],
+    },
+    {
+        name: "ROT13: numbers only loop (negative shift amount)",
+        input: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        expectedOutput: "The Quick Brown Fox Jumped Over The Lazy Dog. 0123456789",
+        recipeConfig: [
+            {
+                op: "ROT13",
+                args: [false, false, true, -10]
+            },
+        ],
+    },
     {
         name: "ROT47: nothing",
         input: "",

tests/operations/tests/SM2.mjs

@@ -0,0 +1,135 @@
+/**
+ * SM2 Tests
+ *
+ * @author flakjacket95 [dflack95@gmail.com]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+/* Plaintexts */
+
+const SMALL_PLAIN = "I am a small plaintext";
+const LARGE_PLAIN = "I am a larger plaintext, that will require the encryption KDF to generate a much larger key to properly encrypt me";
+
+/* Test Key Parameters */
+const PUBLIC_X = "f7d903cab7925066c31150a92b31e548e63f954f92d01eaa0271fb2a336baef8";
+const PUBLIC_Y = "fb0c45e410ef7a6cdae724e6a78dbff52562e97ede009e762b667d9b14adea6c";
+const PRIVATE_K = "e74a72505084c3269aa9b696d603e3e08c74c6740212c11a31e26cdfe08bdf6a";
+
+const CURVE = "sm2p256v1";
+
+/* Decryption Test Ciphertext*/
+
+const CIPHERTEXT_1 = "9a31bc0adb4677cdc4141479e3949572a55c3e6fb52094721f741c2bd2e179aaa87be6263bc1be602e473be3d5de5dce97f8248948b3a7e15f9f67f64aef21575e0c05e6171870a10ff9ab778dbef24267ad90e1a9d47d68f757d57c4816612e9829f804025dea05a511cda39371c22a2828f976f72e";
+const CIPHERTEXT_2 = "d3647d68568a2e7a4f8e843286be7bf2b4d80256697d19a73df306ae1a7e6d0364d942e23d2340606e7a2502a838b132f9242587b2ea7e4c207e87242eea8cae68f5ff4da2a95a7f6d350608ae5b6777e1d925bf9c560087af84aba7befba713130106ddb4082d803811bca3864594722f3198d58257fe4ba37f4aa540adf4cb0568bddd2d8140ad3030deea0a87e3198655cc4d22bfc3d73b1c4afec2ff15d68c8d1298d97132cace922ee8a4e41ca288a7e748b77ca94aa81dc283439923ae7939e00898e16fe5111fbe1d928d152b216a";
+const CIPHERTEXT_3 = "5f340eeb4398fa8950ee3408d0e3fe34bf7728c9fdb060c94b916891b5c693610274160b52a7132a2bf16ad5cdb57d1e00da2f3ddbd55350729aa9c268b53e40c05ccce9912daa14406e8c132e389484e69757350be25351755dcc6c25c94b3c1a448b2cf8c2017582125eb6cf782055b199a875e966";
+const CIPHERTEXT_4 = "0649bac46c3f9fd7fb3b2be4bff27414d634651efd02ca67d8c802bbc5468e77d035c39b581d6b56227f5d87c0b4efbea5032c0761139295ae194b9f1fce698f2f4b51d89fa5554171a1aad2e61fe9de89831aec472ecc5ab178ebf4d2230c1fb94fca03e536b87b9eba6db71ba9939260a08ffd230ca86cb45cf754854222364231bdb8b873791d63ad57a4b3fa5b6375388dc879373f5f1be9051bc5072a8afbec5b7b034e4907aa5bb4b6b1f50e725d09cb6a02e07ce20263005f6c9157ce05d3ea739d231d4f09396fb72aa680884d78";
+
+
+TestRegister.addTests([
+    {
+        name: "SM2 Decrypt: Small Input; Format One",
+        input: CIPHERTEXT_1,
+        expectedOutput: SMALL_PLAIN,
+        recipeConfig: [
+            {
+                "op": "SM2 Decrypt",
+                "args": [PRIVATE_K, "C1C3C2", CURVE]
+            }
+        ]
+    },
+    {
+        name: "SM2 Decrypt: Large Input; Format One",
+        input: CIPHERTEXT_2,
+        expectedOutput: LARGE_PLAIN,
+        recipeConfig: [
+            {
+                "op": "SM2 Decrypt",
+                "args": [PRIVATE_K, "C1C3C2", CURVE]
+            }
+        ]
+    },
+    {
+        name: "SM2 Decrypt: Small Input; Format Two",
+        input: CIPHERTEXT_3,
+        expectedOutput: SMALL_PLAIN,
+        recipeConfig: [
+            {
+                "op": "SM2 Decrypt",
+                "args": [PRIVATE_K, "C1C2C3", CURVE]
+            }
+        ]
+    },
+    {
+        name: "SM2 Decrypt: Large Input; Format Two",
+        input: CIPHERTEXT_4,
+        expectedOutput: LARGE_PLAIN,
+        recipeConfig: [
+            {
+                "op": "SM2 Decrypt",
+                "args": [PRIVATE_K, "C1C2C3", CURVE]
+            }
+        ]
+    },
+    {
+        name: "SM2 Encrypt And Decrypt: Small Input; Format One",
+        input: SMALL_PLAIN,
+        expectedOutput: SMALL_PLAIN,
+        recipeConfig: [
+            {
+                "op": "SM2 Encrypt",
+                "args": [PUBLIC_X, PUBLIC_Y, "C1C3C2", CURVE],
+            },
+            {
+                "op": "SM2 Decrypt",
+                "args": [PRIVATE_K, "C1C3C2", CURVE]
+            }
+        ]
+    },
+    {
+        name: "SM2 Encrypt And Decrypt: Large Input; Format One",
+        input: LARGE_PLAIN,
+        expectedOutput: LARGE_PLAIN,
+        recipeConfig: [
+            {
+                "op": "SM2 Encrypt",
+                "args": [PUBLIC_X, PUBLIC_Y, "C1C3C2", CURVE],
+            },
+            {
+                "op": "SM2 Decrypt",
+                "args": [PRIVATE_K, "C1C3C2", CURVE]
+            }
+        ]
+    },
+    {
+        name: "SM2 Encrypt And Decrypt: Small Input; Format Two",
+        input: SMALL_PLAIN,
+        expectedOutput: SMALL_PLAIN,
+        recipeConfig: [
+            {
+                "op": "SM2 Encrypt",
+                "args": [PUBLIC_X, PUBLIC_Y, "C1C2C3", CURVE],
+            },
+            {
+                "op": "SM2 Decrypt",
+                "args": [PRIVATE_K, "C1C2C2", CURVE]
+            }
+        ]
+    },
+    {
+        name: "SM2 Encrypt And Decrypt: Large Input; Format Two",
+        input: LARGE_PLAIN,
+        expectedOutput: LARGE_PLAIN,
+        recipeConfig: [
+            {
+                "op": "SM2 Encrypt",
+                "args": [PUBLIC_X, PUBLIC_Y, "C1C2C3", CURVE],
+            },
+            {
+                "op": "SM2 Decrypt",
+                "args": [PRIVATE_K, "C1C2C3", CURVE]
+            }
+        ]
+    },
+]);

tests/operations/tests/StripIPv4Header.mjs

@@ -0,0 +1,126 @@
+/**
+ * Strip IPv4 header tests.
+ *
+ * @author c65722 []
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "Strip IPv4 header: No options, No payload",
+        input: "450000140005400080060000c0a80001c0a80002",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip IPv4 header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip IPv4 header: No options, Payload",
+        input: "450000140005400080060000c0a80001c0a80002ffffffffffffffff",
+        expectedOutput: "ffffffffffffffff",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip IPv4 header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip IPv4 header: Options, No payload",
+        input: "460000140005400080060000c0a80001c0a8000207000000",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip IPv4 header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip IPv4 header: Options, Payload",
+        input: "460000140005400080060000c0a80001c0a8000207000000ffffffffffffffff",
+        expectedOutput: "ffffffffffffffff",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip IPv4 header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip IPv4 header: Input length lesss than minimum header length",
+        input: "450000140005400080060000c0a80001c0a800",
+        expectedOutput: "Input length is less than minimum IPv4 header length",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip IPv4 header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip IPv4 header: Input length less than IHL",
+        input: "460000140005400080060000c0a80001c0a80000",
+        expectedOutput: "Input length is less than IHL",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip IPv4 header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    }
+]);

tests/operations/tests/StripTCPHeader.mjs

@@ -0,0 +1,126 @@
+/**
+ * Strip TCP header tests.
+ *
+ * @author c65722 []
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "Strip TCP header: No options, No payload",
+        input: "7f900050000fa4b2000cb2a45010bff100000000",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip TCP header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip TCP header: No options, Payload",
+        input: "7f900050000fa4b2000cb2a45010bff100000000ffffffffffffffff",
+        expectedOutput: "ffffffffffffffff",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip TCP header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip TCP header: Options, No payload",
+        input: "7f900050000fa4b2000cb2a47010bff100000000020405b404020000",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip TCP header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip TCP header: Options, Payload",
+        input: "7f900050000fa4b2000cb2a47010bff100000000020405b404020000ffffffffffffffff",
+        expectedOutput: "ffffffffffffffff",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip TCP header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip TCP header: Input length less than minimum header length",
+        input: "7f900050000fa4b2000cb2a45010bff1000000",
+        expectedOutput: "Need at least 20 bytes for a TCP Header",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip TCP header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip TCP header: Input length less than data offset",
+        input: "7f900050000fa4b2000cb2a47010bff100000000",
+        expectedOutput: "Input length is less than data offset",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip TCP header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    }
+]);

tests/operations/tests/StripUDPHeader.mjs

@@ -0,0 +1,69 @@
+/**
+ * Strip UDP header tests.
+ *
+ * @author c65722 []
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "Strip UDP header: No payload",
+        input: "8111003500000000",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip UDP header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip UDP header: Payload",
+        input: "8111003500080000ffffffffffffffff",
+        expectedOutput: "ffffffffffffffff",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip UDP header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    },
+    {
+        name: "Strip UDP header: Input length less than header length",
+        input: "81110035000000",
+        expectedOutput: "Need 8 bytes for a UDP Header",
+        recipeConfig: [
+            {
+                op: "From Hex",
+                args: ["None"]
+            },
+            {
+                op: "Strip UDP header",
+                args: [],
+            },
+            {
+                op: "To Hex",
+                args: ["None", 0]
+            }
+        ]
+    }
+]);

tests/operations/tests/TakeNthBytes.mjs

@@ -0,0 +1,123 @@
+/**
+ * @author Oshawk [oshawk@protonmail.com]
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import TestRegister from "../../lib/TestRegister.mjs";
+
+/**
+ * Take nth bytes tests
+ */
+TestRegister.addTests([
+    {
+        name: "Take nth bytes: Nothing",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 0, false],
+            },
+        ],
+    },
+    {
+        name: "Take nth bytes: Nothing (apply to each line)",
+        input: "",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 0, true],
+            },
+        ],
+    },
+    {
+        name: "Take nth bytes: Basic single line",
+        input: "0123456789",
+        expectedOutput: "048",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 0, false],
+            },
+        ],
+    },
+    {
+        name: "Take nth bytes: Basic single line (apply to each line)",
+        input: "0123456789",
+        expectedOutput: "048",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 0, true],
+            },
+        ],
+    },
+    {
+        name: "Take nth bytes: Complex single line",
+        input: "0123456789",
+        expectedOutput: "59",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 5, false],
+            },
+        ],
+    },
+    {
+        name: "Take nth bytes: Complex single line (apply to each line)",
+        input: "0123456789",
+        expectedOutput: "59",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 5, true],
+            },
+        ],
+    },
+    {
+        name: "Take nth bytes: Basic multi line",
+        input: "01234\n56789",
+        expectedOutput: "047",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 0, false],
+            },
+        ],
+    },
+    {
+        name: "Take nth bytes: Basic multi line (apply to each line)",
+        input: "01234\n56789",
+        expectedOutput: "04\n59",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 0, true],
+            },
+        ],
+    },
+    {
+        name: "Take nth bytes: Complex multi line",
+        input: "01234\n56789",
+        expectedOutput: "\n8",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 5, false],
+            },
+        ],
+    },
+    {
+        name: "Take nth bytes: Complex multi line (apply to each line)",
+        input: "012345\n6789ab",
+        expectedOutput: "5\nb",
+        recipeConfig: [
+            {
+                op: "Take nth bytes",
+                args: [4, 5, true],
+            },
+        ],
+    }
+]);

webpack.config.js

@@ -1,8 +1,10 @@
 const webpack = require("webpack");
 const MiniCssExtractPlugin = require("mini-css-extract-plugin");
+const CompressionPlugin = require("compression-webpack-plugin");
 const CopyWebpackPlugin = require("copy-webpack-plugin");
 const { ModifySourcePlugin, ReplaceOperation } = require("modify-source-webpack-plugin");
 const path = require("path");
+const zlib = require("zlib");
 
 /**
  * Webpack configuration details for use with Grunt.
@@ -64,6 +66,21 @@ module.exports = {
         new MiniCssExtractPlugin({
             filename: "assets/[name].css"
         }),
+        new CompressionPlugin({
+            filename: "[path][base].gz",
+            algorithm: "gzip",
+            test: /\.(js|css|html)$/,
+        }),
+        new CompressionPlugin({
+            filename: "[path][base].br",
+            algorithm: "brotliCompress",
+            test: /\.(js|css|html)$/,
+            compressionOptions: {
+                params: {
+                    [zlib.constants.BROTLI_PARAM_QUALITY]: 11,
+                },
+            },
+        }),
         new CopyWebpackPlugin({
             patterns: [
                 {