节点JS -加密/解密

Question

我有一个这样的加密函数

const encryptWithInitVector = (string, keyBase64, ivBase64) => {
  const key = Buffer.from(keyBase64, 'base64')
  const iv = Buffer.from(ivBase64, 'base64')

  const cipher = crypto.createCipheriv(getAlgorithm(keyBase64), key, iv)
  let encrypted = cipher.update(string, 'utf8', 'base64')
  encrypted += cipher.final('base64')
  return encrypted
}

它接收要编码的字符串、AESKey和initializationVector。

如何创建相反的路径？我想解码函数encryptWithInitVector的响应

Answer 1

https://nodejs.org/api/crypto.html#crypto_crypto_createdecipheriv_algorithm_key_iv_options

使用crypto.createDecipheriv创建解密

const decryptWithInitVector = (string, keyBase64, ivBase64) => {
  const key = Buffer.from(keyBase64, 'base64')
  const iv = Buffer.from(ivBase64, 'base64')

  const decipher = crypto.createDecipheriv(getAlgorithm(keyBase64), key, iv)

  let decrypted = decipher.update(string,'base64','utf-8');
  decrypted += decipher.final('utf-8');
  return decrypted
}