Hi Bob,
> FYI, i use a keylength of 4096 bit
Key size should not matter.
> It seems that the RsaSignFile method (taken from test.cpp) returns
> different values depending on the compilation mode (release or debug).
This is usually attributed to the person using the library :)
Below is the boiler plate code I use when I need a signature
implementation. It is using Digital Signature with Appendix. By the
way, I do not use SignerFilters.
Jeff
///////////////////////////////////////
// Quote of the Day
// Stephen Hawking
std::string message( "I think computer viruses should count as life. I
think it\n" \
" says something about human nature that the only form of\n" \
" life we have created so far is purely destructive. We've\n" \
" created life in our own image." );
///////////////////////////////////////
// Pseudo Random Number Generator
AutoSeededRandomPool rng;
///////////////////////////////////////
// Key Generation
CryptoPP::InvertibleRSAFunction keys;
keys.GenerateRandomWithKeySize( rng, 384 );
///////////////////////////////////////
// Signature
RSASS< PKCS1v15, SHA >::Signer signer( keys );
// Set up for SignMessage()
byte* signature = new byte[ signer.MaxSignatureLength() ];
if( NULL == signature ) { return -1; }
// Sign...
size_t length = signer.SignMessage( rng, (const byte*) message.c_str(),
message.length(), signature );
///////////////////////////////////////
// Verification
RSASS< PKCS1v15, SHA >::Verifier verifier( signer );
bool result = verifier.VerifyMessage( (const byte*)message.c_str(),
message.length(), signature, length );
///////////////////////////////////////
// Result
if( true == result )
{
cout << "Message Verified" << endl;
}
else
{
cout << "Message Verification Failed" << endl;
}
if( NULL != signature ) { delete[] signature; }</PRE>
On 9/13/07, Bob Doppens <[EMAIL PROTECTED]> wrote:
>
> FYI, i use a keylength of 4096 bit
>
> On 12 sep, 12:33, Bob Doppens <[EMAIL PROTECTED]> wrote:
> > Hi Jeff,
> >
> > I had a look at the page you provided, altough i can't recognize any
> > implementation flaws on my side, could you please shed some further
> > light into this?
> >
> > Thanks,
> > Bob
> >
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