On Friday, July 12, 2013 5:14:29 PM UTC-4, Stefano Mtangoo wrote:
>
> ...
Code:
>
> wxString DecryptString(const wxString& instr, const wxString& passPhrase)
> {
> std::string outstr;
> const char* charToDecrypt = instr.ToStdString().c_str();
> const char* pass = passPhrase.ToStdString().c_str();
>
> try
> {
> CryptoPP::HexDecoder decryptor(new
> CryptoPP::DefaultDecryptorWithMAC(pass, new CryptoPP::StringSink(outstr)));
> decryptor.Put((byte *)charToDecrypt, strlen(charToDecrypt));
> decryptor.MessageEnd();
> }
> catch (CryptoPP::Exception& e)
> {
> wxPuts(e.what());
> }
>
> return wxString(outstr);
> }
>
const char* charToDecrypt = instr.ToStdString().c_str();
const char* pass = passPhrase.ToStdString().c_str();
With all things being equal, there's likely an embedded NULL in the
charToDecrypt c-string. Don't convert it to a c-style string.
I've never worked with WX, but the following would probably be a step in
the right direction:
const std:string& encrypted = instr.ToStdString();
const std:string& pass = passPhrase.ToStdString();
And then, perhaps something like:
//
http://www.cryptopp.com/docs/ref/class_default_decryptor_with_m_a_c.html
CryptoPP::DefaultDecryptorWithMAC decryptor(pass.data(), pass.size(),
new CryptoPP::StringSink(outstr)));
decryptor.Put((byte *)encrypted.data(), encrypted.size());
decryptor.MessageEnd();
Or:
StringSource ss(
encrypted, true,
new DefaultDecryptorWithMAC decryptor(
pass.data(), pass.size(),
new CryptoPP::StringSink(outstr)
)
);
Jeff
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