aes-encryption-128/index.js

Simple aes encryption algorithm

const crypto = require("crypto");

// Encryption function
exports.encrypt = function (text, key) {
  const keyBuffer = Buffer.alloc(16); // 16 bytes for AES-128
  const keyBytes = Buffer.from(key, "utf8");
  keyBytes.copy(keyBuffer);

  const cipher = crypto.createCipheriv(
    "aes-128-cbc",
    keyBuffer,
    Buffer.alloc(16),
  );
  let encrypted = cipher.update(text, "utf8", "hex");
  encrypted += cipher.final("hex");
  return encrypted;
};

// Decryption function
exports.decrypt = function (encryptedText, key) {
  const keyBuffer = Buffer.alloc(16); // 16 bytes for AES-128
  const keyBytes = Buffer.from(key, "utf8");
  keyBytes.copy(keyBuffer);

  const decipher = crypto.createDecipheriv(
    "aes-128-cbc",
    keyBuffer,
    Buffer.alloc(16),
  );
  let decrypted = decipher.update(encryptedText, "hex", "utf8");
  decrypted += decipher.final("utf8");
  return decrypted;
};