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AugmentedEGPublicKey.h

/*
 * Copyright 2003 Michael A. Marsh, Cornell University. All rights reserved.
 * This software is released under the modified BSD license.
 * See the file LICENSE in the top-level directory for details.
 */
//
// $Id: AugmentedEGPublicKey.h,v 1.2 2004/05/19 15:56:57 mmarsh Exp $
//
// $Log: AugmentedEGPublicKey.h,v $
// Revision 1.2  2004/05/19 15:56:57  mmarsh
// *** empty log message ***
//
// Revision 1.1  2003/11/04 21:56:58  mmarsh
// The ElGamal public key with additional generator, and the signed
// version thereof, are now in the CODEX_Server package rather than
// CODEX_Client, since the generic server should not depend on the
// key service client library.
//
//

#ifndef __CODEX_SERVER_PUBLICKEYMSG_H__
#define __CODEX_SERVER_PUBLICKEYMSG_H__

#include "CODEX_Ciphers/ElGamal.h"
#include "CODEX_Ciphers/RSA.h"

namespace CODEX_Server
{
   class AugmentedEGPublicKey : public CODEX_ASN1::Base
   {
      public :
         AugmentedEGPublicKey();

         AugmentedEGPublicKey( const CODEX_Ciphers::ElGamalPublicKey& key,
                               const CODEX_ASN1::BigNumber& h );

         AugmentedEGPublicKey( const AugmentedEGPublicKey& aAPK );

         virtual ~AugmentedEGPublicKey() {}

         void operator=( const AugmentedEGPublicKey& aAPK );

         const CODEX_Ciphers::ElGamalPublicKey& key() const { return m_key; }
         const CODEX_ASN1::BigNumber& h() const { return m_h; }

         BIGNUM* digest( const CODEX_Ciphers::HashFunction& hashFunc ) const;

         int marshal( unsigned char ** pp ) const;
         void* unmarshal( void* bogus, unsigned char ** pp, long length );

      private :
         CODEX_Ciphers::ElGamalPublicKey  m_key;
         CODEX_ASN1::BigNumber            m_h;
   };

   class SignedAugmentedEGPublicKey : public CODEX_ASN1::Base
   {
      public :
         SignedAugmentedEGPublicKey();

         SignedAugmentedEGPublicKey( const AugmentedEGPublicKey& aAPK,
                                     const CODEX_Ciphers::RSASignature& sig );

         SignedAugmentedEGPublicKey(
            const AugmentedEGPublicKey& aAPK,
            const CODEX_Ciphers::RSAPrivateKey& key,
            const CODEX_Ciphers::HashFunction& hashFunc );

         SignedAugmentedEGPublicKey(
            const SignedAugmentedEGPublicKey& aOther );

         virtual ~SignedAugmentedEGPublicKey() {}

         void operator=( const SignedAugmentedEGPublicKey& aOther );

         const AugmentedEGPublicKey& key() const { return m_key; }

         const CODEX_Ciphers::RSASignature& signature() const
         {
            return m_signature;
         }

         bool verify( const CODEX_Ciphers::RSAPublicKey& key,
                      const CODEX_Ciphers::HashFunction& hashFunc ) const;

         int marshal( unsigned char ** pp ) const;
         void* unmarshal( void* bogus, unsigned char ** pp, long length );

      private :
         AugmentedEGPublicKey         m_key;
         CODEX_Ciphers::RSASignature  m_signature;
   };

}

#endif /* __CODEX_SERVER_PUBLICKEYMSG_H__ */

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