Question

这是我要移植到Node crypto中的C＃代码，但是由于我不知道c＃，因此证明有点棘手！

public static string EncryptStringToBytes_Aes(string username, string password) 
    {
      string encrypted = string.Empty;
      byte[] clearBytes = Encoding.UTF8.GetBytes(password);
      Console.WriteLine("1." + clearBytes);
      using (Aes aesAlg = Aes.Create())
      {
        byte[] k; byte[] iv;
        byte[] bytes = Encoding.UTF8.GetBytes(username); 
        k = SHA256.Create().ComputeHash(bytes);
        iv = MD5.Create().ComputeHash(bytes);
        aesAlg.Key = k;
        aesAlg.IV = iv;
        ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
        using (MemoryStream msEncrypt = new MemoryStream()) 
        {
          using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write)) {
          csEncrypt.Write(clearBytes, 0, clearBytes.Length); }
          encrypted = Convert.ToBase64String(msEncrypt.ToArray()); 
        }
      }
      return encrypted;
    }

C＃代表：

https://repl.it/@HarryLincoln/NegligiblePoisedHexagon

节点工作方式：

crypto.createCipheriv()确实看起来很不错，但是我不相信c＃方法（SHA256.Create（）和MD5.Create（））会关心密钥的长度，并且iv-但是crypto.createCipheriv()可以。
c＃使用CryptoStream：所以我认为某种缓冲区是为了查看某些similar C# -> Node crypto stuff

非常感谢您的帮助！

Answer 1

.Net Framework-默认情况下，AES加密使用256位密钥和CBC模式以及PKCS7填充。

要移植的代码非常简单易读，只需执行以下操作即可：

return

BASE64 (
    AES_ENCRYPT (
        password,
        Key: SHA256(username),
        IV: MD5(username)
   )
)

在Node上可以轻松实现同样的目的。

const crypto = require('crypto');

const key = crypto.createHash('sha256').update('username', 'utf8').digest();
const iv = crypto.createHash('md5').update('username', 'utf8').digest();

const encryptor = crypto.createCipheriv("aes-256-cbc", key, iv);

var crypted = Buffer.concat([encryptor.update('password', 'utf8'), encryptor.final()]);

let base64data = crypted.toString('base64');

console.log(base64data);

C＃节点加密哈希-md5和sha256

1 个答案: