68 lines
1.7 KiB
JavaScript
68 lines
1.7 KiB
JavaScript
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/**
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* @author n1474335 [n1474335@gmail.com]
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* @copyright Crown Copyright 2016
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* @license Apache-2.0
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*/
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import Operation from "../Operation";
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import JSSHA3 from "js-sha3";
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import OperationError from "../errors/OperationError";
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/**
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* Keccak operation
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*/
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class Keccak extends Operation {
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/**
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* Keccak constructor
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*/
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constructor() {
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super();
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this.name = "Keccak";
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this.module = "Hashing";
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this.description = "The Keccak hash algorithm was designed by Guido Bertoni, Joan Daemen, Micha\xebl Peeters, and Gilles Van Assche, building upon RadioGat\xfan. It was selected as the winner of the SHA-3 design competition.<br><br>This version of the algorithm is Keccak[c=2d] and differs from the SHA-3 specification.";
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this.inputType = "ArrayBuffer";
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this.outputType = "string";
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this.args = [
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{
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"name": "Size",
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"type": "option",
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"value": ["512", "384", "256", "224"]
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}
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];
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}
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/**
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* @param {ArrayBuffer} input
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* @param {Object[]} args
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* @returns {string}
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*/
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run(input, args) {
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const size = parseInt(args[0], 10);
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let algo;
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switch (size) {
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case 224:
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algo = JSSHA3.keccak224;
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break;
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case 384:
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algo = JSSHA3.keccak384;
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break;
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case 256:
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algo = JSSHA3.keccak256;
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break;
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case 512:
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algo = JSSHA3.keccak512;
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break;
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default:
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throw new OperationError("Invalid size");
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}
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return algo(input);
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}
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}
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export default Keccak;
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