dsql-admin/dsql-app/package-shared/functions/backend/decrypt.js
2024-11-05 12:12:42 +01:00

39 lines
1.1 KiB
JavaScript
Executable File

// @ts-check
const { scryptSync, createDecipheriv } = require("crypto");
const { Buffer } = require("buffer");
// const serverError = require("./serverError");
/**
* @param {string} encryptedString
* @returns {string | null}
*/
const decrypt = (encryptedString) => {
// /** @type {import("crypto").CipherCCMTypes} */
const algorithm = "aes-192-cbc";
const password = process.env.DSQL_ENCRYPTION_PASSWORD || "";
const salt = process.env.DSQL_ENCRYPTION_SALT || "";
// /** @type {import("crypto").CipherKey} */
let key = scryptSync(password, salt, 24);
let iv = Buffer.alloc(16, 0);
// @ts-ignore
const decipher = createDecipheriv(algorithm, key, iv);
/** ********************* Decrypt String */
try {
let decrypted = decipher.update(encryptedString, "hex", "utf8");
decrypted += decipher.final("utf8");
return decrypted;
} catch (error) {
// serverError({
// component: "decrypt",
// message: error.message,
// user: {},
// });
return null;
}
};
module.exports = decrypt;