When I run this code in C++ (shown), C#, or VB6, I get different results for pbBuffer in CryptEncrypt! The only thing I can think of is CryptEncrypt is language-based or the parameters are wrong for the other functions. What other reason would this happen? Am I passing the wrong parameters to CryptDeriveKey?
if (CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL, 0))
{
if (CryptCreateHash(hProv, CALG_MD5, 0, 0, &hHash))
{
if (CryptHashData(hHash, (BYTE *)szLocalPassword, _tcslen(szLocalPassword), 0))
{
if (CryptDeriveKey(hProv, CALG_RC4, hHash, CRYPT_EXPORTABLE, &hKey))
{
dwLength = sizeof(TCHAR)*_tcslen(sUnencryptedString);
BYTE *pbBuffer = (BYTE *)malloc(dwLength);
if (pbBuffer != NULL)
{
// Convert TCHAR to BYTE
char c_szText[128] = {0}; // Any char
SIZE_T so = wcslen(sUnencryptedString) + 1;
wcstombs(c_szText, sUnencryptedString, so);
memcpy(pbBuffer, c_szText, dwLength);
if (CryptEncrypt(hKey, 0, TRUE, 0, pbBuffer, &dwLength, dwLength))