mirrors/CyberChef
1
0
Fork 0
mirror of https://github.com/gchq/CyberChef.git synced 2025-04-21 15:26:16 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge branch 'pem' of https://github.com/cplussharp/CyberChef

Browse source
This commit is contained in:
n1474335 2022-06-03 22:21:37 +01:00
commit 1464e5d5e4
3 changed files with 323 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

39
src/core/operations/PEMToHex.mjs
View file

@ -1,11 +1,14 @@
/**
* @author n1474335 [n1474335@gmail.com]
* @author cplussharp
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import r from "jsrsasign";
import {fromBase64} from "../lib/Base64.mjs";
import Operation from "../Operation.mjs";
import OperationError from "../errors/OperationError.mjs";
import Utils from "../Utils.mjs";
/**
* PEM to Hex operation
@ -25,6 +28,12 @@ class PEMToHex extends Operation {
this.inputType = "string";
this.outputType = "string";
this.args = [];
this.checks = [
{
"pattern": "----BEGIN ([A-Z][A-Z ]+[A-Z])-----",
"args": []
}
];
}
/**
@ -33,17 +42,25 @@ class PEMToHex extends Operation {
* @returns {string}
*/
run(input, args) {
if (input.indexOf("-----BEGIN") < 0) {
// Add header so that the KEYUTIL function works
input = "-----BEGIN CERTIFICATE-----" + input;
let output = "";
let match;
const regex = /-----BEGIN ([A-Z][A-Z ]+[A-Z])-----/g;
while ((match = regex.exec(input)) !== null) {
// find corresponding end tag
const indexBase64 = match.index + match[0].length;
const footer = `-----END ${match[1]}-----`;
const indexFooter = input.indexOf(footer, indexBase64);
if (indexFooter === -1) {
throw new OperationError(`PEM footer '${footer}' not found`);
}
// decode base64 content
const base64 = input.substring(indexBase64, indexFooter);
const bytes = fromBase64(base64, "A-Za-z0-9+/=", "byteArray", true);
const hex = bytes.map(b => Utils.hex(b)).join("");
output += hex;
}
if (input.indexOf("-----END") < 0) {
// Add footer so that the KEYUTIL function works
input = input + "-----END CERTIFICATE-----";
}
const cert = new r.X509();
cert.readCertPEM(input);
return cert.hex;
return output;
}
}