ReadKeyMsg.cc

/*
 * 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: ReadKeyMsg.cc,v 1.4 2004/05/19 15:56:48 mmarsh Exp $
//
// $Log: ReadKeyMsg.cc,v $
// Revision 1.4  2004/05/19 15:56:48  mmarsh
// *** empty log message ***
//
// Revision 1.3  2003/11/04 22:31:48  mmarsh
// *** empty log message ***
//
//

#include "Message.h"

using namespace CODEX_Client;
using namespace CODEX_ASN1;
using namespace CODEX_Ciphers;

ReadKeyMsg::ReadKeyMsg() :
   Message( false )
{
}

ReadKeyMsg::ReadKeyMsg( const OctetString& name,
                        const BlindingCipherTextType& blinding,
#ifndef ELGAMAL
                        const RSAPlaintextPK& proof,
#endif
                        const Credentials& credentials ) :
   Message( true ),
   m_name( name ),
   m_blinding( blinding ),
#ifndef ELGAMAL
   m_proof( proof ),
#endif
   m_credentials( credentials )
{
}

ReadKeyMsg::ReadKeyMsg( const ReadKeyMsg& aRKM ) :
   Message( aRKM.m_initialized ),
   m_name( aRKM.m_name ),
   m_blinding( aRKM.m_blinding ),
#ifndef ELGAMAL
   m_proof( aRKM.m_proof ),
#endif
   m_credentials( aRKM.m_credentials )
{
}

void
ReadKeyMsg::operator=( const ReadKeyMsg& aRKM )
{
   m_initialized = aRKM.m_initialized;
   m_name        = aRKM.m_name;
   m_blinding    = aRKM.m_blinding;
#ifndef ELGAMAL
   m_proof       = aRKM.m_proof;
#endif
   m_credentials = aRKM.m_credentials;
}

int
ReadKeyMsg::marshal( unsigned char ** pp ) const
{
   int r=0;
   int ret=0;
   unsigned char * p;

   ret += m_name.marshal(0);
   ret += m_blinding.marshal(0);
#ifndef ELGAMAL
   ret += m_proof.marshal(0);
#endif
   ret += m_credentials.marshal(0);
   M_ASN1_I2D_seq_total();
   m_name.marshal(&p);
   m_blinding.marshal(&p);
#ifndef ELGAMAL
   m_proof.marshal(&p);
#endif
   m_credentials.marshal(&p);
   M_ASN1_I2D_finish();
}

void*
ReadKeyMsg::unmarshal( void* bogus, unsigned char ** pp, long length )
{
   if ( m_initialized )
   {
      return NULL;
   }
   if ( (NULL == pp) || (NULL == *pp) )
   {
      return NULL;
   }
   ASN1_CTX c;
   c.pp = pp;
   c.q = *pp;
   c.error = ERR_R_NESTED_ASN1_ERROR;
   int i;

   M_ASN1_D2I_Init();
   M_ASN1_D2I_start_sequence();
   M_ASN1_D2I_get(i, m_name.unmarshal);
   M_ASN1_D2I_get(i, m_blinding.unmarshal);
#ifndef ELGAMAL
   M_ASN1_D2I_get(i, m_proof.unmarshal);
#endif
   M_ASN1_D2I_get(i, m_credentials.unmarshal);
   if ( !asn1_Finish(&c) )
   {
      return NULL;
   }
   *pp=c.p;
   m_initialized = true;
   return this;
  err: // needed by ASN.1 macros
   return NULL;
}

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