根据那篇文章,生成了一个 256 位解密密钥和一个 512 位验证密钥,它们与 Rijndael 算法一起使用,因此您需要一个已经在System.Security.Cryptography
命名空间中的 C# 实现。
这是完成这项工作的两个函数:
private static string EncryptString(string clearText,
string strKey, string strIv) {
byte[] plainText = Encoding.UTF8.GetBytes(clearText);
byte[] key = Encoding.UTF8.GetBytes(strKey);
// a simple initialization vector
byte[] iv = Encoding.UTF8.GetBytes(strIv);
RijndaelManaged rijndael = new RijndaelManaged();
//Define the Mode
rijndael.Mode = CipherMode.CBC;
ICryptoTransform aesEncryptor = rijndael.CreateEncryptor(key, iv);
MemoryStream ms = new MemoryStream();
// writing data to MemoryStream
CryptoStream cs = new CryptoStream(ms, aesEncryptor, CryptoStreamMode.Write);
cs.Write(plainText, 0, plainText.Length);
cs.FlushFinalBlock();
byte[] CipherBytes = ms.ToArray();
ms.Close();
cs.Close();
return Convert.ToBase64String(CipherBytes);
}
和 :
public static string DecryptString(string cipherText,
string strKey, string strIv) {
byte[] cipheredData = Convert.FromBase64String(cipherText);
byte[] key = Encoding.UTF8.GetBytes(strKey);
byte[] iv = Encoding.UTF8.GetBytes(strIv);
RijndaelManaged rijndael = new RijndaelManaged();
rijndael.Mode = CipherMode.CBC;
ICryptoTransform decryptor = rijndael.CreateDecryptor(key, iv);
MemoryStream ms = new MemoryStream(cipheredData);
CryptoStream cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read);
byte[] plainTextData = new byte[cipheredData.Length];
int decryptedByteCount = cs.Read(plainTextData, 0, plainTextData.Length);
ms.Close();
cs.Close();
return Encoding.UTF8.GetString(plainTextData, 0, decryptedByteCount);
}
关于你的第二个问题,生成的机器密钥是一个人类可读的十六进制字符串,但你无法弄清楚。
我希望这会有所帮助。