/*

* TLS Session Key

* (C) 2004-2006,2011 Jack Lloyd

*

* Botan is released under the Simplified BSD License (see license.txt)

*/

#ifndef BOTAN_TLS_SESSION_KEYS_H_

#define BOTAN_TLS_SESSION_KEYS_H_

#include <botan/secmem.h>

#include <botan/tls_magic.h>

namespace Botan {

namespace TLS {

class Handshake_State;

/**

* TLS Session Keys

*/

class Session_Keys final

   {

   public:

      /**

      * @return client AEAD key

      */

      const secure_vector<uint8_t>& client_aead_key() const { return m_c_aead; }

      /**

      * @return server AEAD key

      */

      const secure_vector<uint8_t>& server_aead_key() const { return m_s_aead; }

      /**

      * @return client nonce

      */

      const std::vector<uint8_t>& client_nonce() const { return m_c_nonce; }

      /**

      * @return server nonce

      */

      const std::vector<uint8_t>& server_nonce() const { return m_s_nonce; }

      /**

      * @return TLS master secret

      */

      const secure_vector<uint8_t>& master_secret() const { return m_master_sec; }

      const secure_vector<uint8_t>& aead_key(Connection_Side side) const

         {

         return (side == Connection_Side::CLIENT) ? client_aead_key() : server_aead_key();

         }

      const std::vector<uint8_t>& nonce(Connection_Side side) const

         {

         return (side == Connection_Side::CLIENT) ? client_nonce() : server_nonce();

         }

      Session_Keys() = default;

      /**

      * @param state state the handshake state

      * @param pre_master_secret the pre-master secret

      * @param resuming whether this TLS session is resumed

      */

      Session_Keys(const Handshake_State* state,

                   const secure_vector<uint8_t>& pre_master_secret,

                   bool resuming);

   private:

      secure_vector<uint8_t> m_master_sec;

      secure_vector<uint8_t> m_c_aead, m_s_aead;

      std::vector<uint8_t> m_c_nonce, m_s_nonce;

   };

}

}

#endif