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Merge remote-tracking branch 'upstream/master'

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n1073645 2019-11-14 09:03:06 +00:00
commit 30c6917914
6 changed files with 25 additions and 18 deletions
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2
package-lock.json generated
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@ -1,6 +1,6 @@
{ {
"name": "cyberchef", "name": "cyberchef",
"version": "9.11.2", "version": "9.11.5",
"lockfileVersion": 1, "lockfileVersion": 1,
"requires": true, "requires": true,
"dependencies": { "dependencies": {

2
package.json
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@ -1,6 +1,6 @@
{ {
"name": "cyberchef", "name": "cyberchef",
"version": "9.11.2", "version": "9.11.5",
"description": "The Cyber Swiss Army Knife for encryption, encoding, compression and data analysis.", "description": "The Cyber Swiss Army Knife for encryption, encoding, compression and data analysis.",
"author": "n1474335 <n1474335@gmail.com>", "author": "n1474335 <n1474335@gmail.com>",
"homepage": "https://gchq.github.io/CyberChef", "homepage": "https://gchq.github.io/CyberChef",

7
src/core/lib/Stream.mjs
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@ -156,7 +156,6 @@ export default class Stream {
// val is an array // val is an array
/** /**
* Builds the skip forward table from the value to be searched. * Builds the skip forward table from the value to be searched.
* *
@ -173,9 +172,7 @@ export default class Stream {
} }
const length = val.length; const length = val.length;
const initial = val[length-1]; const initial = val[length-1];
this.position = length; this.position = length;
// Get the skip table. // Get the skip table.
@ -183,7 +180,6 @@ export default class Stream {
let found = true; let found = true;
while (this.position < this.length) { while (this.position < this.length) {
// Until we hit the final element of val in the stream. // Until we hit the final element of val in the stream.
while ((this.position < this.length) && (this.bytes[this.position++] !== initial)); while ((this.position < this.length) && (this.bytes[this.position++] !== initial));
@ -208,7 +204,7 @@ export default class Stream {
/** /**
* Consume bytes if it matches the supplied value. * Consume bytes if they match the supplied value.
* *
* @param {Number} val * @param {Number} val
*/ */
@ -219,6 +215,7 @@ export default class Stream {
} }
this.position++; this.position++;
} }
this.bitPos = 0;
} }
/** /**

17
src/core/operations/FromBase62.mjs
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@ -42,15 +42,22 @@ class FromBase62 extends Operation {
*/ */
run(input, args) { run(input, args) {
if (input.length < 1) return []; if (input.length < 1) return [];
const ALPHABET = Utils.expandAlphRange(args[0]).join(""); const alphabet = Utils.expandAlphRange(args[0]).join("");
const BN = BigNumber.clone({ ALPHABET }); const BN62 = BigNumber.clone({ ALPHABET: alphabet });
const re = new RegExp("[^" + ALPHABET.replace(/[[\]\\\-^$]/g, "\\$&") + "]", "g"); const re = new RegExp("[^" + alphabet.replace(/[[\]\\\-^$]/g, "\\$&") + "]", "g");
input = input.replace(re, ""); input = input.replace(re, "");
const number = new BN(input, 62); // Read number in using Base62 alphabet
const number = new BN62(input, 62);
// Copy to new BigNumber object that uses the default alphabet
const normalized = new BigNumber(number);
return Utils.convertToByteArray(number.toString(16), "Hex"); // Convert to hex and add leading 0 if required
let hex = normalized.toString(16);
if (hex.length % 2 !== 0) hex = "0" + hex;
return Utils.convertToByteArray(hex, "Hex");
} }
} }

4
src/core/operations/Lorenz.mjs
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@ -6,8 +6,8 @@
* @license Apache-2.0 * @license Apache-2.0
*/ */
import Operation from "../Operation"; import Operation from "../Operation.mjs";
import OperationError from "../errors/OperationError"; import OperationError from "../errors/OperationError.mjs";
/** /**
* Lorenz operation * Lorenz operation

9
src/core/operations/ToBase62.mjs
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@ -44,12 +44,15 @@ class ToBase62 extends Operation {
input = new Uint8Array(input); input = new Uint8Array(input);
if (input.length < 1) return ""; if (input.length < 1) return "";
const ALPHABET = Utils.expandAlphRange(args[0]).join(""); const alphabet = Utils.expandAlphRange(args[0]).join("");
const BN = BigNumber.clone({ ALPHABET }); const BN62 = BigNumber.clone({ ALPHABET: alphabet });
input = toHexFast(input).toUpperCase(); input = toHexFast(input).toUpperCase();
const number = new BN(input, 16); // Read number in as hex using normal alphabet
const normalized = new BigNumber(input, 16);
// Copy to BigNumber clone that uses the specified Base62 alphabet
const number = new BN62(normalized);
return number.toString(62); return number.toString(62);
} }