Hi Annon, I don't have access to my compiler at this point. So here is what I would try.
Initialize() is being called from class InvertibleRSAFunction. See http://www.cryptopp.com/docs/ref/class_invertible_r_s_a_function.html. After key.Intialize(), dump the keys to verify Intialize() correctly factored n based on e and d. This is a basic sanity check. Then, to dump the RSA class parameters, see http://www.cryptopp.com/wiki/RSA. Jeff On 7/23/07, amnon <[EMAIL PROTECTED]> wrote: > > Hello > > I have a code that creates an RSA key from a byte array, and signs an > array. > After that I verify the result, and somehow if fails although I verify > with the correct key and signature (I think...) > Can someone please help ? > I used 2 methods to verify, and both verifications failed. > > The code is: > void Sign(unsigned char* sigData, unsigned char* plainData , int size) > { > RSA::PrivateKey key; > AutoSeededRandomPool randomPool; > Integer mod(FU_KEYS_SigKeyModulus, 256); > Integer privExp(FU_KEYS_SigKeyPrivExponent, 256); > Integer pubExp(FU_KEYS_SigKeyPubExponent, 4); > boolean failed = false; > > key.Initialize(mod, pubExp, privExp); // modulus, public exponent, > private exponent > RSASSA_PKCS1v15_SHA_Signer signer(key); > ArraySink *arraySink = new ArraySink(sigData, 256); > SignerFilter *sf = new SignerFilter(randomPool, signer, new > HexEncoder(arraySink)); > StringSource str(plainData, size, true, sf); > > > //1st method to verify - for debug > RSASSA_PKCS1v15_SHA_Verifier pub(signer); > SecByteBlock secSign(pub.SignatureLength()); > secSign.Assign(sigData, 256); > VerifierFilter *verifierFilter = new VerifierFilter(pub); > verifierFilter->Put(secSign.data(), secSign.size()); > StringSource f(plainData, size, true, new > HexDecoder(verifierFilter)); > byte result = 0; > f.Get(result); > if (!result) > { > failed = true; > } > > > //2nd method to verify - for debug > RSASSA_PKCS1v15_SHA_Verifier verifier(signer); > VerifierFilter *vf = new VerifierFilter(verifier); > vf->Put(sigData, 256); > StringSource str1(plainData, size, true, vf); > if(vf->GetLastResult() == false) > { > failed = true; > } > } > > The keys are: > > const BYTE FU_KEYS_SigKeyModulus[256] = > { > 0xab, 0x56, 0x7c, 0x0e, 0x60, 0x8c, 0x5c, 0x18, 0x9e, 0x90, 0x2c, > 0x37, 0x32, 0xcf, 0xe3, 0xfe, 0x4f, 0xa7, 0xb5, 0x0c, 0x78, 0xa1, > 0x5d, 0xa7, 0x39, 0xeb, 0xc0, 0x06, 0x87, 0x05, 0xdb, 0x1f, 0xe4, > 0xab, 0x2a, 0x9a, 0x68, 0xe3, 0x5b, 0xb6, 0xfb, 0x27, 0x69, 0x5a, > 0x4b, 0xe2, 0x90, 0x65, 0x04, 0xb2, 0x78, 0xcf, 0x44, 0x02, 0x7c, > 0x16, 0x4c, 0xfb, 0xf5, 0xf0, 0xf6, 0x25, 0x7d, 0x31, 0xf1, 0x2e, > 0xd8, 0x67, 0x93, 0x5a, 0x48, 0xb2, 0xc1, 0x4c, 0x16, 0xfd, 0x97, > 0xe5, 0x86, 0x65, 0x4a, 0x2e, 0x07, 0x4b, 0x14, 0x78, 0xf7, 0x66, > 0x83, 0x66, 0x05, 0xb0, 0xea, 0xec, 0x1e, 0x16, 0xcf, 0xf9, 0xf9, > 0xc5, 0x5c, 0xbc, 0x7b, 0x42, 0x24, 0xa1, 0xa7, 0x1b, 0x55, 0xd7, > 0x4b, 0xb1, 0x62, 0x7f, 0x90, 0x88, 0xee, 0xfb, 0xfb, 0x26, 0xb1, > 0x4f, 0x56, 0x97, 0x8c, 0xd0, 0x12, 0x05, 0xa6, 0xef, 0x09, 0xc9, > 0x08, 0x10, 0xf2, 0x1b, 0x65, 0x9c, 0xf2, 0x05, 0x7b, 0xcc, 0x4e, > 0x6a, 0x65, 0x0c, 0x1c, 0xe1, 0xb5, 0x3e, 0x86, 0x7d, 0xf8, 0x0b, > 0x8b, 0x6f, 0xe3, 0x72, 0x2b, 0xcb, 0xc9, 0x3d, 0xf8, 0x61, 0xf4, > 0x83, 0x74, 0xb1, 0x38, 0xa6, 0xce, 0xde, 0x18, 0x7f, 0x8d, 0xc4, > 0x8f, 0xa1, 0x8e, 0xa6, 0xac, 0x71, 0xa4, 0x89, 0x60, 0xd3, 0x3e, > 0x5f, 0x3d, 0x18, 0x5c, 0x32, 0x6c, 0x96, 0x1d, 0x84, 0x8b, 0x50, > 0xc3, 0x5b, 0x68, 0x5c, 0x16, 0x2d, 0x9c, 0xbb, 0xf1, 0x79, 0x60, > 0x6e, 0xc9, 0x25, 0xaa, 0xec, 0x26, 0x9e, 0x9e, 0xd4, 0xd6, 0x89, > 0xf3, 0xff, 0x23, 0xaa, 0x75, 0x46, 0x3b, 0x4a, 0xea, 0x1d, 0xe5, > 0x03, 0xb9, 0xac, 0x6d, 0xf8, 0x2d, 0x88, 0xff, 0x84, 0x12, 0xb8, > 0x47, 0xcf, 0x3a, 0x32, 0xc9, 0x66, 0xc6, 0xe3, 0x2c, 0x1f, 0x7d, > 0x30, 0xd8, 0x99 > }; > > > //Private portion (exponent) of the signature key: > const BYTE FU_KEYS_SigKeyPrivExponent[256] = > { > 0x04, 0x57, 0x00, 0x75, 0x6c, 0xc4, 0xa1, 0x60, 0x8e, 0x43, 0xa0, > 0x9b, 0x15, 0x52, 0x66, 0xb7, 0xfe, 0x54, 0x85, 0x25, 0x77, 0xb8, > 0xbe, 0xa2, 0x89, 0xb9, 0x0a, 0xf8, 0x1f, 0x5b, 0x6a, 0x9d, 0x78, > 0x31, 0x4d, 0xb6, 0xf3, 0x89, 0x2e, 0xbd, 0x87, 0xc7, 0x0b, 0xc8, > 0x19, 0xbb, 0xf7, 0x64, 0x57, 0xa6, 0x1d, 0xa1, 0x42, 0x5b, 0xbd, > 0xc0, 0xe2, 0xda, 0x4e, 0xf4, 0x77, 0x87, 0xa3, 0x90, 0x2c, 0x47, > 0xbf, 0x7b, 0x80, 0x23, 0xfd, 0x4b, 0x69, 0xd1, 0xff, 0x93, 0x14, > 0xd1, 0xdf, 0x81, 0x99, 0x4b, 0x69, 0x2b, 0xe1, 0xac, 0xde, 0xb7, > 0x5e, 0x04, 0xab, 0x88, 0x3b, 0xab, 0x17, 0x68, 0x04, 0x84, 0x94, > 0x6b, 0x07, 0x5a, 0x4e, 0xd4, 0xf2, 0x10, 0x96, 0x26, 0xff, 0x19, > 0xa0, 0xf5, 0x31, 0x45, 0x81, 0xe7, 0xb6, 0x05, 0xf3, 0xea, 0x9a, > 0xfb, 0x23, 0x7a, 0x5b, 0x3a, 0xb9, 0xfa, 0x18, 0x0d, 0x89, 0xf2, > 0x14, 0x35, 0xf1, 0xf8, 0xdc, 0xb8, 0xb5, 0x1b, 0x96, 0xe8, 0x23, > 0xec, 0xc7, 0xab, 0x4b, 0x9f, 0x0a, 0x9a, 0xd6, 0xa2, 0x7b, 0x56, > 0x10, 0xc4, 0x36, 0x82, 0xd3, 0xe4, 0xb4, 0x9e, 0x6b, 0x79, 0xc7, > 0x58, 0x22, 0x2a, 0x79, 0x8b, 0x68, 0xf1, 0xde, 0x6e, 0xf7, 0xff, > 0x44, 0xfe, 0xd4, 0xdc, 0xdb, 0x73, 0xde, 0x9d, 0x24, 0x63, 0x59, > 0x4d, 0xe4, 0xb1, 0x07, 0x94, 0x6c, 0xf0, 0x1b, 0xeb, 0xa0, 0x20, > 0x34, 0x1d, 0xbb, 0x0d, 0x90, 0xd6, 0x7f, 0x5e, 0x13, 0x8e, 0x12, > 0x2e, 0x86, 0x8f, 0x19, 0xd6, 0xdc, 0x98, 0x6d, 0xc3, 0x99, 0x38, > 0x27, 0xfd, 0xd1, 0x09, 0x67, 0x7c, 0x21, 0x41, 0x84, 0x85, 0x59, > 0xf7, 0x80, 0x4d, 0x6f, 0x12, 0x13, 0x44, 0x4b, 0x73, 0x7a, 0x5c, > 0xbf, 0x98, 0xb1, 0x49, 0x87, 0x8b, 0x88, 0x6c, 0x56, 0x00, 0xa4, > 0xf6, 0x49, 0x31 > }; > > //Public portion (exponent) of the signature key: > const BYTE FU_KEYS_SigKeyPubExponent[4] = > { > 0x00, 0x01, 0x00, 0x01 > }; > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "Crypto++ Users" Google Group. 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