[Botan-devel] beginner problems

[Paul A. <pa...@hu...>]

Hi,

I am new to this and I am having some difficulties.

First I made my keys:
   RSA_PrivateKey key(512);
   pub << X509::PEM_encode(key);
   priv << PKCS8::PEM_encode(key,passphrase2);

later I read the keys back in from some files.I then attempt to encode
and decrypt a message just to test it out.It really doesnt work at all
and I was wonder if anyone sees a flaw in this design.

   X509_PublicKey * publicKey =3D X509::load_key(file);
   PK_Encrypting_Key * key_ok =3D
dynamic_cast<PK_Encrypting_Key*>(publicKey);
   if(!key_ok)
      error();
   PK_Encryptor* enc =3D get_pk_encryptor(*key_ok,"EME1(SHA-1)");
   byte msg[]=3D"This is a test of the Encrytion System. This is only a
test";
   int len =3D strlen((char*)msg);
   SecureVector<byte> ciphertext =3D enc->encrypt(msg,len);
 

   X509_PublicKey * privateKey =3D X509::load_key(file2);
   PK_Decrypting_Key* prkey =3D
dynamic_cast<PK_Decrypting_Key*>(privateKey); 
   if(!prkey)
      error();
   PK_Decryptor *dec =3D get_pk_decryptor(*prkey,"EME(SHA-1)");
   SecureVector<byte> plainText;                      
   plainText =3D dec->decrypt(ciphertext,12);
   cout<<plainText<<endl;