I have seen example of Cryptopp, there is GenerateRSAKey function which
generate a public and private key to file, but I want to generate it to
memory. Thus I have change the source code from
HexEncoder privFile(new FileSink(privFilename));
HexEncoder pubFile(new FileSink(pubFilename));
--->
HexEncoder privString(new StringSink(privResult));
HexEncoder pubString(new StringSink(pubResult));
Is there right?
Then I use this pair of key to encrypt and decrypt a string but it fatal
error
My encrypt and decrypt code:
char* CRSAService::EncryptString(const char *pszPublicKey, char *pszSeeds,
char *pszMessage)
{
char *pszResult;
RandomPool randPool;
randPool.IncorporateEntropy((byte *)pszSeeds, strlen(pszSeeds));
StringSource pubString(pszPublicKey, true, new HexDecoder);
RSAES_OAEP_SHA_Encryptor pub(pubString);
string szResult;
StringSource(pszMessage, true, new PK_EncryptorFilter(randPool, pub, new
HexEncoder(new StringSink(szResult))));
pszResult = new char[szResult.size() + 1];
copy(szResult.begin(), szResult.end(), pszResult);
pszResult[szResult.size()] = '\0';
return pszResult;
}
char* CRSAService::DecryptString(const char *pszPrivateKey, char
*pszCipherText)
{
char *pszResult;
StringSource privString(pszPrivateKey, true, new HexDecoder);
RSAES_OAEP_SHA_Decryptor priv(privString);
string szResult;
StringSource(pszCipherText, true, new HexDecoder(new
PK_DecryptorFilter(GlobalRNG(), priv, new StringSink(szResult))));
pszResult = new char[szResult.size() + 1];
copy(szResult.begin(), szResult.end(), pszResult);
pszResult[szResult.size()] = '\0';
return pszResult;
}
Is there something wrong?
Cam Vi
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