node.js - 使用 Crypto 时 NodeJS 解密失败。有什么问题吗？

Question

var decipher = Crypto.createDecipheriv('aes-256-cfb', 'testtesttesttesttesttest', 'testtesttesttest')

Error: Invalid key length
    at new Decipheriv (crypto.js:267:16)
    at Object.createDecipheriv (crypto.js:627:10)

这是我收到的错误。我哪里出错了？

Answer 1

如果我们尝试另一种方式呢？如本例所示:

function encryptdata(key, text) {

  const hash = crypto.createHash('sha256');
                   hash.update(key);
  const keyBytes = hash.digest();

  const iv = crypto.randomBytes(16);
  const cipher = crypto.createCipheriv('aes-256-cfb', keyBytes, iv);
  let enc = [iv, cipher.update(text, 'utf8')];
  enc.push(cipher.final());
  return Buffer.concat(enc).toString('base64');
}