如何在Delphi和C#中加密数据,使它们兼容

本文关键字:数据 加密 Delphi | 更新日期: 2023-09-27 18:23:43

我想在Delphi应用程序中以与服务器上的加密兼容的方式加密客户端上的一些数据。在我的服务器上,我使用以下C#代码加密数据:

public class AesCryptUtils
{
    private static byte[] _salt = Encoding.ASCII.GetBytes("o6806642kbM7c5");
    /// <summary> 
    /// Encrypt the given string using AES.  The string can be decrypted using  
    /// DecryptStringAES().  The sharedSecret parameters must match. 
    /// </summary> 
    /// <param name="plainText">The text to encrypt.</param> 
    /// <param name="sharedSecret">A password used to generate a key for encryption.</param> 
    public static string EncryptStringAES(string plainText, string sharedSecret)
    {
        if (string.IsNullOrEmpty(plainText))
            throw new ArgumentNullException("plainText");
        if (string.IsNullOrEmpty(sharedSecret))
            throw new ArgumentNullException("sharedSecret");
        string outStr = null;                       // Encrypted string to return 
        AesManaged aesAlg = null;              // AesManaged object used to encrypt the data. 
        try
        {
            // generate the key from the shared secret and the salt 
            Rfc2898DeriveBytes key = new Rfc2898DeriveBytes(sharedSecret, _salt);
            // Create a AesManaged object 
            // with the specified key and IV. 
            aesAlg = new AesManaged();
            aesAlg.Key = key.GetBytes(aesAlg.KeySize / 8);
            aesAlg.IV = key.GetBytes(aesAlg.BlockSize / 8);
            // Create a decrytor to perform the stream transform. 
            ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
            // Create the streams used for encryption. 
            using (MemoryStream msEncrypt = new MemoryStream())
            {
                using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
                {
                    using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
                    {
                        //Write all data to the stream. 
                        swEncrypt.Write(plainText);
                    }
                }
                outStr = Convert.ToBase64String(msEncrypt.ToArray());
            }
        }
        finally
        {
            // Clear the AesManaged object. 
            if (aesAlg != null)
                aesAlg.Clear();
        }
        // Return the encrypted bytes from the memory stream. 
        return outStr;
    }
}

如何在Delphi中实现这种加密算法给定相同的输入,得到的加密数据必须相同。

如何在Delphi和C#中加密数据,使它们兼容

问题的相关问题列表包含此链接,其中提到了Delphi的一些AES实现。我相信你可以找到更多,你总是可以使用OpenSSL或CryptoAPI之类的东西,但你可能需要自己为它们编写Delphi绑定。

请注意,由于您不直接传递密钥,因此也需要实现密钥派生。