CyberChef/src/core/operations/HMAC.mjs

82 lines
2.2 KiB
JavaScript

/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation.mjs";
import Utils from "../Utils.mjs";
import CryptoApi from "crypto-api/src/crypto-api.mjs";
/**
* HMAC operation
*/
class HMAC extends Operation {
/**
* HMAC constructor
*/
constructor() {
super();
this.name = "HMAC";
this.module = "Crypto";
this.description = "Keyed-Hash Message Authentication Codes (HMAC) are a mechanism for message authentication using cryptographic hash functions.";
this.infoURL = "https://wikipedia.org/wiki/HMAC";
this.inputType = "ArrayBuffer";
this.outputType = "string";
this.args = [
{
"name": "Key",
"type": "toggleString",
"value": "",
"toggleValues": ["Hex", "Decimal", "Base64", "UTF8", "Latin1"]
},
{
"name": "Hashing function",
"type": "option",
"value": [
"MD2",
"MD4",
"MD5",
"SHA0",
"SHA1",
"SHA224",
"SHA256",
"SHA384",
"SHA512",
"SHA512/224",
"SHA512/256",
"RIPEMD128",
"RIPEMD160",
"RIPEMD256",
"RIPEMD320",
"HAS160",
"Whirlpool",
"Whirlpool-0",
"Whirlpool-T",
"Snefru"
]
}
];
}
/**
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const key = Utils.convertToByteString(args[0].string || "", args[0].option),
hashFunc = args[1].toLowerCase(),
msg = Utils.arrayBufferToStr(input, false),
hasher = CryptoApi.getHasher(hashFunc);
const mac = CryptoApi.getHmac(key, hasher);
mac.update(msg);
return CryptoApi.encoder.toHex(mac.finalize());
}
}
export default HMAC;