Convert VB.net Function into C++ in linux

[syerwin]

Hi

Im newbee in linux programming. n dunno how to convert this vb.net source code in windows to c++ in linux

this is the code

Private Function MD5(ByVal StrText As String) As String
On Error Resume Next
Dim hProv As Long, phHash As Long, pdwDataLen As Long, pbData() As Byte
Call CryptAcquireContext(hProv, vbNullString, vbNullString, 1, &HF0000000)
Call CryptCreateHash(hProv, 32768 Or 0 Or 3, 0, 0, phHash)
Call CryptHashData(phHash, ByVal StrText, Len(StrText), 0)
Call CryptGetHashParam(phHash, 4, pdwDataLen, 4, 0)
ReDim pbData(0 To pdwDataLen - 1)
Call CryptGetHashParam(phHash, 2, pbData(0), pdwDataLen, 0)
MD5 = StrConv(pbData, vbUnicode)
CryptDestroyHash phHash
CryptReleaseContext hProv, 0
End Function

Please Help me.

Thanks in advance.

Regards,
Syerwin

[PanGalactic]

OpenSSL has a nifty function called MD5(). Check the MD5(3) man page ("man 3 MD5" at the command-line).

I'm not sure what StrConv() does on line 10, so this may not be complete. I typically export the hash base64 encoded.

std::string md5(const std::string& text)
{
    char digest[MD5_DIGEST_LENGTH];
    MD5(
        reinterpret_cast<const unsigned char*>(text.c_str()),
        text.size(),
        reinterpret_cast<unsigned char*>(digest));
    return std::string(digest, digest + MD5_DIGEST_LENGTH);
}

You will need to link the code with "-lssl".