好的,我正在尝试使用 C++ 中的 Win32 Crypto API 来解密使用 RijndaelManaged 类在 C# (.NET 2) 中加密的字符串。但是我一点运气都没有,我得到了乱码或错误的数据 Win32 错误代码。我所有的钥匙,IV 和盐匹配,我已经在手表中查看了两个测试应用程序。我已经花了很多时间在看它,但我被官方卡住了。
无论如何,这里是 C#
Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(GetPassPhrase(), salt, 1000);
RijndaelManaged rijndael = new RijndaelManaged();
rijndael.BlockSize = 128;
rijndael.KeySize = 256;
rijndael.Mode = CipherMode.CBC;
rijndael.Key = pdb.GetBytes(m_KeySize);
rijndael.IV = GetIV(iv);
ICryptoTransform encryptor = rijndael.CreateEncryptor();
MemoryStream msEncrypt = new MemoryStream();
CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write);
Byte[] encryptedBytes = null;
Byte[] toBeEncrypted = UnicodeEncoding.Unicode.GetBytes(value);
csEncrypt.Write(toBeEncrypted, 0, toBeEncrypted.Length);
csEncrypt.FlushFinalBlock();
encryptedBytes = msEncrypt.ToArray();
解密它的 C++ 是:
keyBlob.hdr.bType = PLAINTEXTKEYBLOB;
keyBlob.hdr.bVersion = CUR_BLOB_VERSION;
keyBlob.hdr.reserved = 0;
keyBlob.hdr.aiKeyAlg = CALG_AES_256;
keyBlob.cbKeySize = KEY_SIZE;
keyBlob.rgbKeyData = &byKey[0];
if ( CryptImportKey( hProv, (const LPBYTE) &keyBlob, sizeof(BLOBHEADER) + sizeof(DWORD) + KEY_SIZE, 0, CRYPT_EXPORTABLE, &hKey ) )
{
if ( CryptSetKeyParam( hKey, KP_IV, (const BYTE *) &byIV, 0))
{
DWORD dwLen = iDestLen;
if ( CryptDecrypt( hKey, 0, TRUE, 0, pbyData, &dwLen))
{
if ( dwLen < (DWORD) *plOutSize)
{
memcpy_s(pbyOutput, *plOutSize, pbyData, dwLen);
*plOutSize = dwLen;
bRet = TRUE;
}
}
else
{
// Log
DWORD dwErr = ::GetLastError();
int y =0;
}
}
}
我成功调用 CryptAcquireContext 并且我的 C++ 执行良好。谁能以我的方式发现错误。它开始让我沮丧知道:(