/********************************************************************

Copyright 2006-2008 ZHANG Luduo. All Rights Reserved.

Permission to use, copy, modify, distribute and sell this software
and its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appear in all copies and
that both that copyright notice and this permission notice appear
in supporting documentation.

********************************************************************/

/*

代碼說明 : 

	SHA算法, 160, 224, 256, 384, 512位

聯系方式:

	作者  - 張魯奪
	MSN   - zhangluduo@msn.com
	Email - zhangluduo@163.com
	QQ群  - 34064264, 56918155

為所有愛我的人和我愛的人努力!

*/

#ifndef _SHAEX_H
#define _SHAEX_H

#include "SHA1.h"
#include "SHA2.h"
#include "SHA4.h"

class SHAEx
{
public:

	typedef enum _SHA_BITS
	{
		BITS160,
		BITS224,
		BITS256,
		BITS384,
		BITS512
	}	SHA_BITS;

private:

	SHA_BITS m_ShaBits;

	SHA1::SHA1Context  m_Context1;

	SHA1 m_SHA1;

	sha2_context m_Context2;

	sha4_context m_Context4;

public:
	
	SHAEx();

	SHAEx(SHA_BITS ShaBits);

	virtual ~SHAEx();

	void Init();

	void Init(SHA_BITS ShaBits);

	void Update(unsigned char pData[], int Len);

	void Finish(unsigned char result[]);
};

#endif