CyberChef/src/core/operations/GenerateUUID.mjs

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/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation";
import crypto from "crypto";
/**
* Generate UUID operation
*/
class GenerateUUID extends Operation {
/**
* GenerateUUID constructor
*/
constructor() {
super();
this.name = "Generate UUID";
this.module = "Crypto";
this.description = "Generates an RFC 4122 version 4 compliant Universally Unique Identifier (UUID), also known as a Globally Unique Identifier (GUID).<br><br>A version 4 UUID relies on random numbers, in this case generated using <code>window.crypto</code> if available and falling back to <code>Math.random</code> if not.";
this.infoURL = "https://wikipedia.org/wiki/Universally_unique_identifier";
this.inputType = "string";
this.outputType = "string";
this.args = [];
}
/**
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const buf = new Uint32Array(4).map(() => {
return crypto.randomBytes(4).readUInt32BE(0, true);
});
let i = 0;
return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function(c) {
const r = (buf[i >> 3] >> ((i % 8) * 4)) & 0xf,
v = c === "x" ? r : (r & 0x3 | 0x8);
i++;
return v.toString(16);
});
}
}
export default GenerateUUID;