3DES Verschlüsselung VC++<=>PHP

[piluz]

Hallo Leute,

ich möchte verschlüsselte Daten (3DES) über HTTP an nen Server schicken. Serverkommunikation: kein Problem. Verschlüsselung: grosses Problem!!! Die mit PHP verschlüsselten Daten kann ich mit meinem VC++ Client nicht entschlüsseln, und umgekehrt. Irgendwie muss da ein Parameter fehlen oder falsch eingestellt sein.

Verschlüsselung mit c++

CString CCrypt::DecryptString(CString _sSource, CString _sPassword/*=""*/)
{
	//--------------------------------------------------------------------
	// Declare and initialize local variables.
	if(strlen(_sPassword)==0)
		_sPassword			= "geheim";

	BYTE *cPwd				= (BYTE*)(LPCSTR)_sPassword;
	CString cryptString		= "";
	HCRYPTPROV hCryptProv	= 0; 
	HCRYPTKEY hKey			= 0; 
	HCRYPTHASH hHash		= 0;  
	DWORD err				= 0;
	char pbBuffer[1000]		= {0}; 
	DWORD dwCount			= (DWORD)strlen(_sSource); 
	DWORD dwBufLen			= 1000;

	if(strlen(_sSource)!=0)
	{
		Base64Decode(_sSource, (int)strlen(_sSource), (BYTE*)pbBuffer, (int*)&dwCount);

		//--------------------------------------------------------------------
		// Get a handle to the default provider. 
		if(!CryptAcquireContext(&hCryptProv, NULL, MS_ENHANCED_PROV, PROV_RSA_FULL, 0))
		{
			if(!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET))
			{
				err = GetLastError();
				MessageBox(NULL, "Error during CryptAcquireContext!", "error", MB_OK);
			}
		}

		//--------------------------------------------------------------------
		// Create a hash object. 
		if(!CryptCreateHash(hCryptProv, CALG_MD5, 0, 0, &hHash))
		{
			err = GetLastError();
			MessageBox(NULL, "Error during CryptCreateHash!", "error", MB_OK);
		}

		//--------------------------------------------------------------------
		// Hash in the password data. 
		if(!CryptHashData(hHash, cPwd, (DWORD)strlen((char*)cPwd), 0))
		{
			err = GetLastError();
			MessageBox(NULL, "Error during CryptHashData!", "error", MB_OK);
		}

		//--------------------------------------------------------------------
		// Derive a session key from the hash object. 
		if(!CryptDeriveKey(hCryptProv, CALG_3DES, hHash, CRYPT_EXPORTABLE, &hKey))
		{
			err = GetLastError();
			MessageBox(NULL, "Error during CryptDeriveKey!", "error", MB_OK);
		}

		//--------------------------------------------------------------------
		// Destroy the hash object. 
		if(!(CryptDestroyHash(hHash)))
			MessageBox(NULL, "Error during CryptDestroyHash", "error", MB_OK);
		hHash = 0; 

		//--------------------------------------------------------------------
		// Decrypt data. 
		if(!CryptDecrypt(hKey, 0, TRUE, 0, (BYTE*)pbBuffer, &dwCount))
		{
			 err = GetLastError();
			MessageBox(NULL, "Error during CryptEncrypt!", "error", MB_OK);
		}

		//--------------------------------------------------------------------
		// Destroy session key. 
		if(hKey)
		{
			if(!(CryptDestroyKey(hKey)))
				MessageBox(NULL, "Error during CryptDestroyKey", "error", MB_OK);
		} 

		//--------------------------------------------------------------------
		// Release provider handle. 
		if(hCryptProv)
		{
			if(!(CryptReleaseContext(hCryptProv, 0)))
				MessageBox(NULL, "Error during CryptReleaseContext", "error", MB_OK);
		}

		for(int i=0;i<(int)dwCount;i++)
			cryptString.Insert(i, pbBuffer[i]);
	}
	return cryptString;
}

Entschlüsselung php:

$key = "geheim";
$input_base64 = base64_decode($decrypt_string);

$encrypted_data = mcrypt_decrypt(MCRYPT_3DES, $key, $input_base64, MCRYPT_MODE_CBC);

Wenn mir da einer weiter helfen könnte wäre das echt super!?!?!

[piluz]

Sorry ich ich meinte natürlich encrypt. ( Der klassische copy/paste Fehler... :-))

CString CCrypt::EncryptString(CString _sSource, CString _sPassword/*=""*/)
{
	//--------------------------------------------------------------------
	// Declare and initialize local variables.
	if(strlen(_sPassword)==0)
		_sPassword			= "geheim";

	BYTE *cPwd				= (BYTE*)(LPCSTR)_sPassword;
	CString cryptString		= 0;
	HCRYPTPROV hCryptProv	= 0;
	HCRYPTKEY hKey			= 0;    
	HCRYPTHASH hHash		= 0;
	DWORD err				= 0;

	char pbBuffer[1000]		= {0};
	DWORD dwCount			= (DWORD)strlen(_sSource);
	DWORD dwBufLen			= 1000;

	if(strlen(_sSource)!=0)
	{
		strcpy(pbBuffer, _sSource);

		//--------------------------------------------------------------------
		// Get a handle to the default provider. 
		if(!CryptAcquireContext(&hCryptProv, NULL, MS_ENHANCED_PROV, PROV_RSA_FULL, 0))
		{
			//if(!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET))
			//{
				err = GetLastError();
				MessageBox(NULL, "Error during CryptAcquireContext!", "error", MB_OK);
			//}
		}

		//--------------------------------------------------------------------
		// Create a hash object. 
		if(!CryptCreateHash(hCryptProv, CALG_MD5, 0, 0, &hHash))
		{
			err = GetLastError();
			MessageBox(NULL, "Error during CryptCreateHash!", "error", MB_OK);
		}

		//--------------------------------------------------------------------
		// Hash in the password data. 
		if(!CryptHashData(hHash, cPwd, (DWORD)strlen((char*)cPwd), 0))
		{
			err = GetLastError();
			MessageBox(NULL, "Error during CryptHashData!", "error", MB_OK);
		}

		//--------------------------------------------------------------------
		// Derive a session key from the hash object. 
		if(!CryptDeriveKey(hCryptProv, CALG_3DES, hHash, CRYPT_EXPORTABLE, &hKey))
		{
			err = GetLastError();
			MessageBox(NULL, "Error during CryptDeriveKey!", "error", MB_OK);
		}

		//--------------------------------------------------------------------
		// Destroy the hash object. 
		if(!(CryptDestroyHash(hHash)))
			MessageBox(NULL, "Error during CryptDestroyHash", "error", MB_OK);
		hHash = 0; 

		//--------------------------------------------------------------------
		// Encrypt data. 
		if(!CryptEncrypt(hKey, 0, TRUE, 0, (BYTE*)pbBuffer, &dwCount, dwBufLen))
		{
			err = GetLastError();
			MessageBox(NULL, "Error during CryptEncrypt!", "error", MB_OK);
		}

		//--------------------------------------------------------------------
		// Destroy session key. 
		if(hKey)
		{
			if(!(CryptDestroyKey(hKey)))
				MessageBox(NULL, "Error during CryptDestroyKey", "error", MB_OK);
		} 

		//--------------------------------------------------------------------
		// Release provider handle. 
		if(hCryptProv)
		{
			if(!(CryptReleaseContext(hCryptProv, 0)))
				MessageBox(NULL, "Error during CryptReleaseContext", "error", MB_OK);
		}
		char test[1000] = {0};
		int tmpCount = 1000;
		Base64Encode((BYTE*)pbBuffer, dwCount, test, &tmpCount);
		cryptString = test;
	}

	return cryptString;
}