mirror of https://github.com/gchq/CyberChef.git
103 lines
2.9 KiB
JavaScript
103 lines
2.9 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 { Blowfish } from "../vendor/Blowfish.mjs";
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import { toBase64 } from "../lib/Base64.mjs";
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/**
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* Lookup table for Blowfish output types.
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*/
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const BLOWFISH_OUTPUT_TYPE_LOOKUP = {
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Base64: 0, Hex: 1, String: 2, Raw: 3
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};
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/**
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* Lookup table for Blowfish modes.
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*/
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const BLOWFISH_MODE_LOOKUP = {
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ECB: 0, CBC: 1, PCBC: 2, CFB: 3, OFB: 4, CTR: 5
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};
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/**
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* Blowfish Encrypt operation
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*/
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class BlowfishEncrypt extends Operation {
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/**
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* BlowfishEncrypt constructor
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*/
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constructor() {
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super();
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this.name = "Blowfish Encrypt";
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this.module = "Ciphers";
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this.description = "Blowfish is a symmetric-key block cipher designed in 1993 by Bruce Schneier and included in a large number of cipher suites and encryption products. AES now receives more attention.<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.";
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this.infoURL = "https://wikipedia.org/wiki/Blowfish_(cipher)";
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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": "Key",
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"type": "toggleString",
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"value": "",
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"toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
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},
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{
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"name": "IV",
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"type": "toggleString",
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"value": "",
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"toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
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},
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{
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"name": "Mode",
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"type": "option",
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"value": ["CBC", "PCBC", "CFB", "OFB", "CTR", "ECB"]
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},
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{
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"name": "Input",
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"type": "option",
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"value": ["Raw", "Hex"]
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},
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{
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"name": "Output",
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"type": "option",
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"value": ["Hex", "Base64", "Raw"]
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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 key = Utils.convertToByteString(args[0].string, args[0].option),
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iv = Utils.convertToByteArray(args[1].string, args[1].option),
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[,, mode, inputType, outputType] = args;
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if (key.length === 0) throw new OperationError("Enter a key");
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input = Utils.convertToByteString(input, inputType);
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Blowfish.setIV(toBase64(iv), 0);
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const enc = Blowfish.encrypt(input, key, {
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outputType: BLOWFISH_OUTPUT_TYPE_LOOKUP[outputType],
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cipherMode: BLOWFISH_MODE_LOOKUP[mode]
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});
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return outputType === "Raw" ? Utils.byteArrayToChars(enc) : enc;
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}
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}
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export default BlowfishEncrypt;
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