datasquirel/functions/decrypt.js
2023-08-13 12:11:17 +01:00

51 lines
1.5 KiB
JavaScript

// @ts-check
const { scryptSync, createDecipheriv } = require("crypto");
const { Buffer } = require("buffer");
/**
*
* @param {object} param0
* @param {string} param0.encryptedString
* @param {string} param0.encryptionKey
* @param {string} param0.encryptionSalt
* @returns
*/
const decrypt = ({ encryptedString, encryptionKey, encryptionSalt }) => {
if (!encryptedString?.match(/./)) {
console.log("Encrypted string is invalid");
console.log("Encrypted string =>", encryptedString);
return encryptedString;
}
if (!encryptionKey?.match(/.{8,}/)) {
console.log("Decrption key is invalid");
return encryptedString;
}
if (!encryptionSalt?.match(/.{8,}/)) {
console.log("Decrption salt is invalid");
return encryptedString;
}
const algorithm = "aes-192-cbc";
let key = scryptSync(encryptionKey, encryptionSalt, 24);
let iv = Buffer.alloc(16, 0);
const decipher = createDecipheriv(algorithm, key, iv);
try {
let decrypted = decipher.update(encryptedString, "hex", "utf8");
decrypted += decipher.final("utf8");
return decrypted;
} catch (error) {
console.log("Error in decrypting =>", error.message);
console.log("encryptedString =>", encryptedString);
console.log("encryptionKey =>", encryptionKey);
console.log("encryptionSalt =>", encryptionSalt);
return encryptedString;
}
};
module.exports = decrypt;