[英]How can I encrypt data in Delphi and in C# so that they are compatible?
我想以一種與我服務器上的加密兼容的方式在我的Delphi應用程序中加密客戶端上的一些數據。 在我的服務器上,我使用這個C#代碼加密數據:
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中實現這種加密算法? 給定相同的輸入,得到的加密數據必須相同。
您的問題的相關問題列表包含此鏈接 ,其中提到了Delphi的一些AES實現。 我相信你可以找到更多,你總是可以使用像OpenSSL或CryptoAPI這樣的東西,但你可能需要自己編寫Delphi綁定。
請注意,由於您未直接傳遞密鑰,因此您還需要實現密鑰派生。
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