mirror of https://github.com/gchq/CyberChef.git
90 lines
2.4 KiB
JavaScript
90 lines
2.4 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 CryptoJS from "crypto-js";
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import { format } from "../lib/Ciphers.mjs";
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/**
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* RC4 operation
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*/
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class RC4 extends Operation {
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/**
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* RC4 constructor
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*/
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constructor() {
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super();
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this.name = "RC4";
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this.module = "Ciphers";
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this.description = "RC4 (also known as ARC4) is a widely-used stream cipher designed by Ron Rivest. It is used in popular protocols such as SSL and WEP. Although remarkable for its simplicity and speed, the algorithm's history doesn't inspire confidence in its security.";
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this.infoURL = "https://wikipedia.org/wiki/RC4";
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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": "Passphrase",
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"type": "toggleString",
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"value": "",
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"toggleValues": ["UTF8", "UTF16", "UTF16LE", "UTF16BE", "Latin1", "Hex", "Base64"]
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},
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{
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"name": "Input format",
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"type": "option",
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"value": ["Latin1", "UTF8", "UTF16", "UTF16LE", "UTF16BE", "Hex", "Base64"]
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},
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{
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"name": "Output format",
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"type": "option",
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"value": ["Latin1", "UTF8", "UTF16", "UTF16LE", "UTF16BE", "Hex", "Base64"]
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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 message = format[args[1]].parse(input),
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passphrase = format[args[0].option].parse(args[0].string),
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encrypted = CryptoJS.RC4.encrypt(message, passphrase);
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return encrypted.ciphertext.toString(format[args[2]]);
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}
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/**
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* Highlight RC4
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*
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* @param {Object[]} pos
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* @param {number} pos[].start
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* @param {number} pos[].end
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* @param {Object[]} args
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* @returns {Object[]} pos
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*/
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highlight(pos, args) {
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return pos;
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}
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/**
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* Highlight RC4 in reverse
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*
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* @param {Object[]} pos
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* @param {number} pos[].start
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* @param {number} pos[].end
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* @param {Object[]} args
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* @returns {Object[]} pos
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*/
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highlightReverse(pos, args) {
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return pos;
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}
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}
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export default RC4;
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