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90 lines
2.7 KiB
JavaScript
90 lines
2.7 KiB
JavaScript
/**
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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.mjs";
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import Utils from "../Utils.mjs";
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import OperationError from "../errors/OperationError.mjs";
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import scryptsy from "scryptsy";
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import { isWorkerEnvironment } from "../Utils.mjs";
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/**
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* Scrypt operation
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*/
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class Scrypt extends Operation {
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/**
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* Scrypt constructor
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*/
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constructor() {
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super();
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this.name = "Scrypt";
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this.module = "Crypto";
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this.description = "scrypt is a password-based key derivation function (PBKDF) created by Colin Percival. The algorithm was specifically designed to make it costly to perform large-scale custom hardware attacks by requiring large amounts of memory. In 2016, the scrypt algorithm was published by IETF as RFC 7914.<br><br>Enter the password in the input to generate its hash.";
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this.infoURL = "https://wikipedia.org/wiki/Scrypt";
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this.inputType = "string";
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this.outputType = "string";
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this.args = [
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{
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"name": "Salt",
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"type": "toggleString",
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"value": "",
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"toggleValues": ["Hex", "Base64", "UTF8", "Latin1"]
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},
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{
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"name": "Iterations (N)",
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"type": "number",
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"value": 16384
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},
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{
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"name": "Memory factor (r)",
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"type": "number",
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"value": 8
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},
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{
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"name": "Parallelization factor (p)",
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"type": "number",
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"value": 1
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},
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{
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"name": "Key length",
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"type": "number",
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"value": 64
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}
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];
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}
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/**
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* @param {string} 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 salt = Buffer.from(Utils.convertToByteArray(args[0].string || "", args[0].option)),
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iterations = args[1],
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memFactor = args[2],
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parallelFactor = args[3],
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keyLength = args[4];
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try {
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const data = scryptsy(
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input, salt, iterations, memFactor, parallelFactor, keyLength,
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p => {
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// Progress callback
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if (isWorkerEnvironment())
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self.sendStatusMessage(`Progress: ${p.percent.toFixed(0)}%`);
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}
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);
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return data.toString("hex");
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} catch (err) {
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throw new OperationError("Error: " + err.toString());
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}
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}
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}
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export default Scrypt;
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