mirrors/CyberChef
1
0
Fork 0
mirror of https://github.com/gchq/CyberChef.git synced 2025-04-21 23:36:16 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Rewrote PBKDF2 operation to use Forge instead of CryptoJS and improved the API for both PBKDF2 and EVP operations.

Browse source
This commit is contained in:
n1474335 2018-01-01 18:49:22 +00:00
parent 68e52d1645
commit b58942f69a
2 changed files with 38 additions and 51 deletions
Download patch file Download diff file Expand all files Collapse all files

39
src/core/operations/Cipher.js
View file

@ -361,7 +361,7 @@ DES uses a key length of 8 bytes (64 bits).`;
* @constant
* @default
*/
KDF_KEY_SIZE: 256,
KDF_KEY_SIZE: 128,
/**
* @constant
* @default
@ -371,7 +371,7 @@ DES uses a key length of 8 bytes (64 bits).`;
* @constant
* @default
*/
HASHERS: ["MD5", "SHA1", "SHA224", "SHA256", "SHA384", "SHA512", "SHA3", "RIPEMD160"],
HASHERS: ["SHA1", "SHA256", "SHA384", "SHA512", "MD5"],
/**
* Derive PBKDF2 key operation.
@ -381,20 +381,15 @@ DES uses a key length of 8 bytes (64 bits).`;
* @returns {string}
*/
runPbkdf2: function (input, args) {
let keySize = args[0] / 32,
iterations = args[1],
hasher = args[2],
salt = CryptoJS.enc.Hex.parse(args[3] || ""),
inputFormat = args[4],
outputFormat = args[5],
passphrase = Cipher._format[inputFormat].parse(input),
key = CryptoJS.PBKDF2(passphrase, salt, {
keySize: keySize,
hasher: CryptoJS.algo[hasher],
iterations: iterations,
});
const passphrase = Utils.convertToByteString(args[0].string, args[0].option),
keySize = args[1],
iterations = args[2],
hasher = args[3],
salt = Utils.convertToByteString(args[4].string, args[4].option) ||
forge.random.getBytesSync(keySize),
derivedKey = forge.pkcs5.pbkdf2(passphrase, salt, iterations, keySize / 8, hasher.toLowerCase());
return key.toString(Cipher._format[outputFormat]);
return Utils.toHexFast(Utils.strToCharcode(derivedKey));
},
@ -406,20 +401,18 @@ DES uses a key length of 8 bytes (64 bits).`;
* @returns {string}
*/
runEvpkdf: function (input, args) {
let keySize = args[0] / 32,
iterations = args[1],
hasher = args[2],
salt = CryptoJS.enc.Hex.parse(args[3] || ""),
inputFormat = args[4],
outputFormat = args[5],
passphrase = Cipher._format[inputFormat].parse(input),
const passphrase = Utils.convertToByteString(args[0].string, args[0].option),
keySize = args[1] / 32,
iterations = args[2],
hasher = args[3],
salt = Utils.convertToByteString(args[4].string, args[4].option),
key = CryptoJS.EvpKDF(passphrase, salt, {
keySize: keySize,
hasher: CryptoJS.algo[hasher],
iterations: iterations,
});
return key.toString(Cipher._format[outputFormat]);
return key.toString(CryptoJS.enc.Hex);
},