Credentials.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: Credentials.cc,v 1.3 2004/05/19 15:56:46 mmarsh Exp $
//
// $Log: Credentials.cc,v $
// Revision 1.3  2004/05/19 15:56:46  mmarsh
// *** empty log message ***
//
// Revision 1.2  2003/11/04 22:31:47  mmarsh
// *** empty log message ***
//
//

#include "Credentials.h"
#include "CODEX_Exceptions/BignumExceptions.h"

using namespace CODEX_Ciphers;
using namespace CODEX_Exceptions;

Credentials::Credentials() :
   CODEX_ASN1::Base( false )
{
}

//Credentials::Credentials( const RSAPublicKey& publicKey,
//                          const RSASignature& signature ) :
//   PolCredBase( publicKey, signature )
//{
//}

//Credentials::Credentials( const RSAPublicKey& publicKey,
//                          const RSAPrivateKey& signingKey,
//                          const HashFunction& hashFunc ) :
//   PolCredBase( publicKey, signingKey, hashFunc )
//{
//}

Credentials::Credentials( const RSAPublicKey& publicKey ) :
   CODEX_ASN1::Base( true ),
   m_publicKey( publicKey )
{
}

Credentials::Credentials( const Credentials& aCred ) :
   CODEX_ASN1::Base( aCred ),
   m_publicKey( aCred.m_publicKey )
{
}

void
Credentials::operator=( const Credentials& aCred )
{
   m_initialized = aCred.m_initialized;
   m_publicKey = aCred.m_publicKey;
}

const RSAPublicKey&
Credentials::publicKey() const
{
   return m_publicKey;
}

//BIGNUM *
//Credentials::digest( const CODEX_Ciphers::HashFunction& hf ) const
//{
//   unsigned char* buff = NULL;
//   BIGNUM * retVal = NULL;
//   CODEX_ASN1::ustring* str = NULL;
//
//   try
//   {
//      int length = marshal(0);
//      buff = new unsigned char[ length ];
//      unsigned char* pBuff = buff;
//      marshal(&pBuff);
//      str = hf( CODEX_ASN1::ustring( buff, length ) );
//      delete buff;
//      buff = NULL;
//      retVal = BN_new();
//      if ( NULL == retVal )
//      {
//         throw BignumNullException( __FILE__ , __LINE__ );
//      }
//      if ( NULL == BN_bin2bn( str->data(), str->length(), retVal ) )
//      {
//         throw BignumBin2BNException( __FILE__ , __LINE__ );
//      }
//      delete str;
//
//      return retVal;
//   }
//   catch ( ... )
//   {
//      if ( NULL != buff ) delete buff;
//      if ( NULL != str ) delete str;
//      if ( NULL != retVal ) BN_free( retVal );
//      throw;
//   }
//}

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

   ret += m_publicKey.marshal(0);
   M_ASN1_I2D_seq_total();
   m_publicKey.marshal(&p);
   M_ASN1_I2D_finish();
}

void*
Credentials::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_publicKey.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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