Updated this program, but now it's worse. All decryptions fail with the first
error mentioned, I have not yet implemented the PBKDF due to the fact that I
have no idea where to start on it, but I have tried to switch the hexDecode
into a byte loading process, yet encryption is failing again. I think It's
probably a stupid mistake of mine, but I can't seem to find it. Encryption
function has not changed.
int xxz568::AESDecrypt(std::string key, std::string input, std::string
&output) {
std::string store2, init, hexDec;
CryptoPP::SecByteBlock test;
test.Grow(16);
try{
byte keyB[32];
std::string hashKey = sha1(key).substr(0, 32);
memcpy(keyB, hashKey.c_str(), 32);
//obtain IV
init.assign(input.substr(0, 16));
HexDecodeintoByte(init, test, 16);
cout << "Byte Decoded: " << test << endl;
//obtain the remaining piece
store2.assign(input.substr(16, input.length()));
HexDecode(store2, hexDec);
cout << "Finishing Decode: " << store2 << " -> DECD: " << hexDec <<
endl;
//
StringSink* sink = new StringSink(output);
CBC_Mode<AES>::Decryption aes(keyB, sizeof(keyB), test);
StreamTransformationFilter* aes_enc = new
StreamTransformationFilter(aes, sink);
StringSource cipher(hexDec, true, aes_enc);
}
catch(CryptoPP::Exception e) {
cout << e.GetWhat() << endl;
output = "Decrypt Error:";
output.append(e.GetWhat());
}
return 1;
}
int xxz568::HexDecodeintoByte(std::string input, CryptoPP::SecByteBlock
&output, int size) {
CryptoPP::StringSource foo(input, true,
new CryptoPP::HexDecoder(
new CryptoPP::ArraySink(output, size)));
return 1;
}
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