PKIFCryptoPPKAContext.cpp

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#include "PKIFCryptoPPKAContext.h"

#include "Buffer.h"
#include "PKIFMemoryUtils.h"

struct CPKIFCryptoPPKAContextImpl
{
    CPKIFBufferPtr m_secret;
};

CPKIFCryptoPPKAContext::CPKIFCryptoPPKAContext()
:m_impl(new CPKIFCryptoPPKAContextImpl)
{
}

CPKIFCryptoPPKAContext::~CPKIFCryptoPPKAContext()
{
    if(m_impl->m_secret)
    {
        // cast away const-ness and zero the buffer. we should really create a subclass
        // of CPKIFBuffer for this, or consider using key material
        unsigned char * raw = const_cast<unsigned char *>(m_impl->m_secret->GetBuffer());
        PKIFZero(raw,m_impl->m_secret->GetLength());
    }
    delete m_impl;
}

void CPKIFCryptoPPKAContext::SetSecret(const CPKIFBufferPtr & secret)
{
    if(m_impl->m_secret)
    {
        // cast away const-ness and zero the buffer. we should really create a subclass
        // of CPKIFBuffer for this, or consider using key material
        unsigned char * raw = const_cast<unsigned char *>(m_impl->m_secret->GetBuffer());
        PKIFZero(raw,m_impl->m_secret->GetLength());
    }
    m_impl->m_secret = secret;
}

CPKIFBufferPtr CPKIFCryptoPPKAContext::GetSecret()
{
    return m_impl->m_secret;
}