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ESM: Ported all Hash and Checksum operations

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n1474335 2018-05-17 15:11:34 +00:00
parent 5362508a99
commit 3fd1f4e6d9
43 changed files with 1971 additions and 9 deletions
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src/core/operations/HMAC.mjs Normal file
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/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation";
import Utils from "../Utils";
import CryptoApi from "crypto-api/src/crypto-api";
/**
* HMAC operation
*/
class HMAC extends Operation {
/**
* HMAC constructor
*/
constructor() {
super();
this.name = "HMAC";
this.module = "Hashing";
this.description = "Keyed-Hash Message Authentication Codes (HMAC) are a mechanism for message authentication using cryptographic hash functions.";
this.inputType = "ArrayBuffer";
this.outputType = "string";
this.args = [
{
"name": "Key",
"type": "binaryString",
"value": ""
},
{
"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 = args[0],
hashFunc = args[1].toLowerCase(),
msg = Utils.arrayBufferToStr(input, false),
hasher = CryptoApi.getHasher(hashFunc);
// Horrible shim to fix constructor bug. Reported in nf404/crypto-api#8
hasher.reset = () => {
hasher.state = {};
const tmp = new hasher.constructor();
hasher.state = tmp.state;
};
const mac = CryptoApi.getHmac(CryptoApi.encoder.fromUtf(key), hasher);
mac.update(msg);
return CryptoApi.encoder.toHex(mac.finalize());
}
}
export default HMAC;