我想使用以下方法解密已由 C#.Net 中的应用程序加密的字符串：
public static class clsEncryptions
{
public static string GetKey()
{
var key = new { key = "MyKey" };
return key.key;
}
public static string Encrypt(this string EncryptString)
{
if (EncryptString == string.Empty)
return string.Empty;
byte[] clearBytes =
System.Text.Encoding.Unicode.GetBytes(EncryptString);
PasswordDeriveBytes pdb = new PasswordDeriveBytes(GetKey(),
new byte[] {0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d,
0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76});
MemoryStream ms = new MemoryStream();
Rijndael alg = Rijndael.Create();
alg.Key = pdb.GetBytes(32);
alg.IV = pdb.GetBytes(16);
CryptoStream cs = new CryptoStream(ms, alg.CreateEncryptor(),CryptoStreamMode.Write);
cs.Write(clearBytes, 0, clearBytes.Length);
cs.Close();
return Convert.ToBase64String(ms.ToArray());
}
public static string Decrypt(this string DecryptString)
{
if (DecryptString == string.Empty)
return string.Empty;
byte[] cipherBytes = Convert.FromBase64String(DecryptString);
PasswordDeriveBytes pdb = new PasswordDeriveBytes(GetKey(),
new byte[] {0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65,
0x64, 0x76, 0x65, 0x64, 0x65, 0x76});
MemoryStream ms = new MemoryStream();
Rijndael alg = Rijndael.Create();
alg.Key = pdb.GetBytes(32);
alg.IV = pdb.GetBytes(16);
CryptoStream cs = new CryptoStream(ms, alg.CreateDecryptor(), CryptoStreamMode.Write);
cs.Write(cipherBytes, 0, cipherBytes.Length);
cs.Close();
return System.Text.Encoding.Unicode.GetString(ms.ToArray());
}
}
请帮助我将解密逻辑转换为 VC++（MFC 项目），以便我能够在我的 VC++ 应用程序中读取加密文件。