RSA encrypt with private and decrypt with public key

[Marcello]

Hy
I hope somebody can help me.
I'm new with crypto++.
I try to encrypt an Message with the private Key of RSA.

My example Code:

to generate Key files:
{
string PrivateKeyFile = "key.pv";
string PublicKeyFile = "key.pb";
AutoSeededRandomPool rng;
int e = 65537;
RSAES_OAEP_SHA_Decryptor Decryptor( rng, 1024 , e );
HexEncoder privFile(new FileSink( PrivateKeyFile.c_str() ));

Decryptor.DEREncode(privFile);
privFile.MessageEnd();
RSAES_OAEP_SHA_Encryptor Encryptor(Decryptor);
HexEncoder pubFile(new  FileSink( PublicKeyFile.c_str() )       );
Encryptor.DEREncode(pubFile);
pubFile.MessageEnd();
}

after that ich try to encrypt a message :
{
const char * pubFilename = "key.pv";


        FileSource pubFile(pubFilename, true, new HexDecoder);

        RSAES_OAEP_SHA_Encryptor pub(pubFile);
        AutoSeededRandomPool randPool;
        string * result = new string();

        StringSource(
                        message,
                        true,
                        new PK_EncryptorFilter(randPool, pub, new HexEncoder(new
StringSink(*result))));

        cout << *result << endl;

}
to decrypt the cipher
{
const char * privFilename = "key.pb";
        AutoSeededRandomPool randPool;

        FileSource privFile(privFilename, true, new HexDecoder);
        RSAES_OAEP_SHA_Decryptor priv(privFile);

        string *result2 = new string();
        StringSource(
                        cipher,
                        true,
                        new HexDecoder(new PK_DecryptorFilter(randPool, priv, 
new
StringSink(*result2))));
        cout << *result2 << endl;

}
I need this for my bachelor thesis!
Thank a lot
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