js des cbc加密

const crypto = require('crypto');

function desCbcEncrypt(text, key, iv) {
  const cipher = crypto.createCipheriv('des-cbc', key, iv);
  let encrypted = cipher.update(text, 'utf8', 'hex');
  encrypted += cipher.final('hex');
  return encrypted;
}

function desCbcDecrypt(encryptedText, key, iv) {
  const decipher = crypto.createDecipheriv('des-cbc', key, iv);
  let decrypted = decipher.update(encryptedText, 'hex', 'utf8');
  decrypted += decipher.final('utf8');
  return decrypted;
}

// 示例用法
const key = Buffer.from('12345678'); // DES密钥必须是8字节
const iv = Buffer.from('12345678');  // 初始化向量，也必须是8字节
const text = 'Hello, World!';

const encrypted = desCbcEncrypt(text, key, iv);
console.log('Encrypted:', encrypted);

const decrypted = desCbcDecrypt(encrypted, key, iv);
console.log('Decrypted:', decrypted);