COrnell Data EXchange (CODEX): SecureBigNumber.cc Source File

00001 /*
00002  * Copyright 2003 Michael A. Marsh, Cornell University. All rights reserved.
00003  * This software is released under the modified BSD license.
00004  * See the file LICENSE in the top-level directory for details.
00005  */
00006 //
00007 // $Id: SecureBigNumber.cc,v 1.3 2004/05/19 15:56:38 mmarsh Exp $
00008 //
00009 // $Log: SecureBigNumber.cc,v $
00010 // Revision 1.3  2004/05/19 15:56:38  mmarsh
00011 // Added copyright and license statements.
00012 //
00013 // Revision 1.2  2003/11/04 22:31:46  mmarsh
00014 // *** empty log message ***
00015 //
00016 //
00017 
00018 #include "SecureBigNumber.h"
00019 
00020 using namespace CODEX_ASN1;
00021 
00022 SecureBigNumber::SecureBigNumber() :
00023    BigNumber()
00024 {
00025 }
00026 
00027 SecureBigNumber::SecureBigNumber( BIGNUM * pBN ) :
00028    BigNumber( pBN )
00029 {
00030 }
00031 
00032 SecureBigNumber::SecureBigNumber( const ASN1_INTEGER* asn1 ) :
00033    BigNumber( asn1 )
00034 {
00035 }
00036 
00037 SecureBigNumber::SecureBigNumber( const BigNumber& aBN ) :
00038    BigNumber( aBN )
00039 {
00040 }
00041 
00042 SecureBigNumber::~SecureBigNumber()
00043 {
00044    if ( m_initialized )
00045    {
00046       if ( NULL != m_value ) BN_clear( m_value );
00047       // There's no clear function for ASN.1 objects.
00048       if ( NULL != m_asn1 ) memset(m_asn1->data,0,m_asn1->length);
00049    }
00050 }