mirror of https://github.com/gchq/CyberChef.git
108 lines
3.5 KiB
JavaScript
108 lines
3.5 KiB
JavaScript
/**
|
|
* @author n1474335 [n1474335@gmail.com]
|
|
* @copyright Crown Copyright 2016
|
|
* @license Apache-2.0
|
|
*/
|
|
|
|
import Operation from "../Operation";
|
|
import Utils from "../Utils";
|
|
import forge from "node-forge/dist/forge.min.js";
|
|
import OperationError from "../errors/OperationError";
|
|
|
|
/**
|
|
* AES Encrypt operation
|
|
*/
|
|
class AESEncrypt extends Operation {
|
|
|
|
/**
|
|
* AESEncrypt constructor
|
|
*/
|
|
constructor() {
|
|
super();
|
|
|
|
this.name = "AES Encrypt";
|
|
this.module = "Ciphers";
|
|
this.description = "Advanced Encryption Standard (AES) is a U.S. Federal Information Processing Standard (FIPS). It was selected after a 5-year process where 15 competing designs were evaluated.<br><br><b>Key:</b> The following algorithms will be used based on the size of the key:<ul><li>16 bytes = AES-128</li><li>24 bytes = AES-192</li><li>32 bytes = AES-256</li></ul>You can generate a password-based key using one of the KDF operations.<br><br><b>IV:</b> The Initialization Vector should be 16 bytes long. If not entered, it will default to 16 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used.";
|
|
this.infoURL = "https://wikipedia.org/wiki/Advanced_Encryption_Standard";
|
|
this.inputType = "string";
|
|
this.outputType = "string";
|
|
this.args = [
|
|
{
|
|
"name": "Key",
|
|
"type": "toggleString",
|
|
"value": "",
|
|
"toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
|
|
},
|
|
{
|
|
"name": "IV",
|
|
"type": "toggleString",
|
|
"value": "",
|
|
"toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
|
|
},
|
|
{
|
|
"name": "Mode",
|
|
"type": "option",
|
|
"value": ["CBC", "CFB", "OFB", "CTR", "GCM", "ECB"]
|
|
},
|
|
{
|
|
"name": "Input",
|
|
"type": "option",
|
|
"value": ["Raw", "Hex"]
|
|
},
|
|
{
|
|
"name": "Output",
|
|
"type": "option",
|
|
"value": ["Hex", "Raw"]
|
|
}
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @param {string} input
|
|
* @param {Object[]} args
|
|
* @returns {string}
|
|
*
|
|
* @throws {OperationError} if invalid key length
|
|
*/
|
|
run(input, args) {
|
|
const key = Utils.convertToByteArray(args[0].string, args[0].option),
|
|
iv = Utils.convertToByteArray(args[1].string, args[1].option),
|
|
mode = args[2],
|
|
inputType = args[3],
|
|
outputType = args[4];
|
|
|
|
if ([16, 24, 32].indexOf(key.length) < 0) {
|
|
throw new OperationError(`Invalid key length: ${key.length} bytes
|
|
|
|
The following algorithms will be used based on the size of the key:
|
|
16 bytes = AES-128
|
|
24 bytes = AES-192
|
|
32 bytes = AES-256`);
|
|
}
|
|
|
|
input = Utils.convertToByteString(input, inputType);
|
|
|
|
const cipher = forge.cipher.createCipher("AES-" + mode, key);
|
|
cipher.start({iv: iv});
|
|
cipher.update(forge.util.createBuffer(input));
|
|
cipher.finish();
|
|
|
|
if (outputType === "Hex") {
|
|
if (mode === "GCM") {
|
|
return cipher.output.toHex() + "\n\n" +
|
|
"Tag: " + cipher.mode.tag.toHex();
|
|
}
|
|
return cipher.output.toHex();
|
|
} else {
|
|
if (mode === "GCM") {
|
|
return cipher.output.getBytes() + "\n\n" +
|
|
"Tag: " + cipher.mode.tag.getBytes();
|
|
}
|
|
return cipher.output.getBytes();
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
export default AESEncrypt;
|