rsaprovider.h

基于SD卡的软实现CSP程序

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this sample source code is subject to the terms of the Microsoft
// license agreement under which you licensed this sample source code. If
// you did not accept the terms of the license agreement, you are not
// authorized to use this sample source code. For the terms of the license,
// please see the license agreement between you and Microsoft or, if applicable,
// see the LICENSE.RTF on your install media or the root of your tools installation.
// THE SAMPLE SOURCE CODE IS PROVIDED "AS IS", WITH NO WARRANTIES.
//
#ifndef INCL_RSA_PROVIDER_H
#define INCL_RSA_PROVIDER_H

#include <windows.h>
#include <wincrypt.h>

#pragma once

class CRSAProvider
{
public:
	CRSAProvider();
	virtual ~CRSAProvider();
	bool Initialize(bool bSilent);

public:
	HCRYPTPROV GetHandle(){return m_hProv;}
	operator HCRYPTPROV(){return GetHandle();}
	BOOL GetMaxKeySize(DWORD & pdwKeySize);
	BOOL GetMinKeySize(DWORD & pdwKeySize);
	BOOL GetKeyStepping(DWORD & pdwKeyStepping);

private:
	BOOL GetKeySizes();
	BOOL AcquireContext(bool bSilent);
	HCRYPTPROV  m_hProv;
	DWORD m_dwMaxKeySize;
	DWORD m_dwMinKeySize;

};

#endif