cyberchef
Version:
The Cyber Swiss Army Knife for encryption, encoding, compression and data analysis.
49 lines (41 loc) • 1.73 kB
JavaScript
/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation.mjs";
import {runHash} from "../lib/Hash.mjs";
/**
* SHA2 operation
*/
class SHA2 extends Operation {
/**
* SHA2 constructor
*/
constructor() {
super();
this.name = "SHA2";
this.module = "Crypto";
this.description = "The SHA-2 (Secure Hash Algorithm 2) hash functions were designed by the NSA. SHA-2 includes significant changes from its predecessor, SHA-1. The SHA-2 family consists of hash functions with digests (hash values) that are 224, 256, 384 or 512 bits: SHA224, SHA256, SHA384, SHA512.<br><br><ul><li>SHA-512 operates on 64-bit words.</li><li>SHA-256 operates on 32-bit words.</li><li>SHA-384 is largely identical to SHA-512 but is truncated to 384 bytes.</li><li>SHA-224 is largely identical to SHA-256 but is truncated to 224 bytes.</li><li>SHA-512/224 and SHA-512/256 are truncated versions of SHA-512, but the initial values are generated using the method described in Federal Information Processing Standards (FIPS) PUB 180-4.</li></ul>";
this.infoURL = "https://wikipedia.org/wiki/SHA-2";
this.inputType = "ArrayBuffer";
this.outputType = "string";
this.args = [
{
"name": "Size",
"type": "option",
"value": ["512", "256", "384", "224", "512/256", "512/224"]
}
];
}
/**
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const size = args[0];
return runHash("sha" + size, input);
}
}
export default SHA2;