Botan::DSA_PrivateKey to DSA_PublicKey how to?

Question

I've succeeded with creating a new DSA_PrivateKey and Botan::PKCS8::PEM_encode to save to a .pem file. Now I need to save the PublicKey to a separate .pem also. Anybody know how to copy the DSA_PrivateKey to a DSA_PublicKey? I tried many different things none worked.. Shall appreciate this, thanks!

Answer 1

Figured this out, use:

Botan::DSA_PublicKey(DL_Group, privatekey->get_y()); 

then

keystring = Botan::X509::PEM_encode(pubkey);