// For password encryption
string MainWindow::sha256hash(string data)
{
byte const* pbData = (byte*) data.data();
unsigned int nDataLen = data.size();
byte abDigest[SHA256::DIGESTSIZE];
SHA256().CalculateDigest(abDigest, pbData, nDataLen);
string encoded;
HexEncoder encoder;
encoder.Put(abDigest, sizeof(abDigest));
encoder.MessageEnd();
word64 size = encoder.MaxRetrievable();
if(size)
{
encoded.resize(size);
encoder.Get((byte*)encoded.data(), encoded.size());
}
return encoded;
}
int main (int argc, const char* argv[]) {
string toSign;
FileSource(argv[1], true, new StringSink(toSign));
AutoSeededRandomPool rng;
//Read private key
CryptoPP::ByteQueue bytes;
FileSource file(argv[2], true, new Base64Decoder);
file.TransferTo(bytes);
bytes.MessageEnd();
RSA::PrivateKey privateKey;
privateKey.Load(bytes);
//Sign message
RSASSA_PKCS1v15_SHA_Signer signer(privateKey);
SecByteBlock signature(signer.SignatureLength());
signer.SignMessage(
rng,
(byte const*) toSign.data(),
toSign.size(),
signature);
//Print string of signature
HexEncoder encoder;
string signatureString;
encoder.Put(signature.data(), signature.size());
encoder.MessageEnd();
word64 signatureSize = encoder.MaxRetrievable();
if (signatureSize) {
signatureString.resize(signatureSize);
encoder.Get((byte*) signatureString.data(), signatureString.size());
}
cout << signatureString << endl;
}
int main(int argc, char* argv[])
{
/*********************************
Non-Filter Method Encoder
*********************************/
#if 0
byte decoded[] = { 0xFF, 0xEE, 0xDD, 0xCC, 0xBB, 0xAA, 0x99, 0x88, 0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11, 0x00 };
string encoded;
HexEncoder encoder;
encoder.Put(decoded, sizeof(decoded));
encoder.MessageEnd();
word64 size = encoder.MaxRetrievable();
if(size)
{
encoded.resize(size);
encoder.Get((byte*)encoded.data(), encoded.size());
}
cout << encoded << endl;
#endif
/*********************************
Filter Method Encoder
*********************************/
#if 1
char decoded[] = {106,102,114,97,103, 101, 9, 9,9, 9, 9, 9,9,9,9,114,101,32,83,113,117,101,97, 109,105,115,104,32,79,115,84,104,101,32,77,97,103,105,99,32,87,111,114,100,115,32};
string encoded = "";
StringSource ss(decoded, true/* pumpAll */,
new HexEncoder(
new StringSink(encoded), true
) // HexEncoder
); // StringSource
cout << encoded << endl;
//encoded = encoded + decoded;
//cout << encoded << endl;
#endif
/*********************************
Non-Filter Method Decoder
*********************************/
#if 0
string encoded = "FFEEDDCCBBAA99887766554433221100";
string decoded;
HexDecoder decoder;
decoder.Put( (byte*)encoded.data(), encoded.size() );
decoder.MessageEnd();
word64 size = decoder.MaxRetrievable();
if(size && size <= SIZE_MAX)
{
decoded.resize(size);
decoder.Get((byte*)decoded.data(), decoded.size());
}
cout << decoded << endl;
#endif
/*********************************
Filter Method Decoder
*********************************/
#if 1
//string encoded = "FFEEDDCCBBAA99887766554433221100";
string decoded2;
string enc = "3130362C3130322C3131342C39372C3130332C203130312C20392C20392C392C20392C20392C20392C392C392C392C3131342C3130312C33322C38332C3131332C3131372C3130312C39372C203130392C3130352C3131352C3130342C33322C37392C3131352C38342C3130342C3130312C33322C37372C39372C3130332C3130352C39392C33322C38372C3131312C3131342C3130302C3131352C3332";
StringSource sss(enc, true/* pumpAll */,
new HexDecoder(
new StringSink(decoded2)
) // HexEncoder
); // StringSource
cout << decoded2 << endl;
#endif
return 0;
}