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我有一个 C# 代码来解密数据，现在我试图在 PHP 中做同样的事情，但我不能得到相同的结果。我知道我遗漏了一些东西，但我不知道如何将其转移到 PHP。有任何想法吗？谢谢。

这是 C# 代码：

public static string Decrypt(string cipherData, string key)
{
  byte[] salt = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0 };
  byte[] IV = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };

  PasswordDeriveBytes cdk = new PasswordDeriveBytes(key, salt);
  byte[] kex = cdk.CryptDeriveKey("RC2", "SHA1", 128, salt);
  RijndaelManaged rijKey = new RijndaelManaged();
  rijKey.Mode = CipherMode.CBC;

  byte[] textBytes = Convert.FromBase64String(cipherData);
  ICryptoTransform decryptor = rijKey.CreateDecryptor(kex, IV);
  MemoryStream memoryStream = new MemoryStream(textBytes);
  CryptoStream cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read);
  byte[] pTextBytes = new byte[(textBytes.Length - 1) + 1];
  int decryptedByteCount = cryptoStream.Read(pTextBytes, 0, pTextBytes.Length);

  memoryStream.Close();
  cryptoStream.Close();

  return Encoding.UTF8.GetString(pTextBytes, 0, decryptedByteCount);
}

这是试图做同样的PHP代码（我知道它不完整）：

function Decrypt($data, $key) {

    $method = 'rc2-cbc';
    $iv = '0000000000000000';

    return utf8_encode(openssl_decrypt($data, $method, sha1($key), OPENSSL_ZERO_PADDING, $iv));
}
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