randomgenerator.h

来自「RSA 高级实现」· C头文件 代码 · 共 34 行

// RandomGenerator.h: interface for the CRandomGenerator class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_RANDOMGENERATOR_H__4A4F00B0_DB64_4B3C_9DD8_7B8D6AC704FB__INCLUDED_)
#define AFX_RANDOMGENERATOR_H__4A4F00B0_DB64_4B3C_9DD8_7B8D6AC704FB__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "BigNumber.h"
class CRandomGenerator  
{
protected:
	int		m_nUpdateCounter;
	BYTE	m_bySeed[1024];
	CString m_strFileName;
	void _RandomGetBytesEntropy(unsigned char* buf, unsigned l, unsigned effective);
public:
	CRandomGenerator();
	virtual ~CRandomGenerator();

	BOOL LoadSeedFromFile(const char* szFileName);
	BOOL SaveSeedIntoFile();

	void Update(int n);
	int GetUpdateCounter() { return m_nUpdateCounter; };

	int GenRand(CBigNumber *bn, unsigned bits, BYTE high, BYTE low, unsigned effective);
};

#endif // !defined(AFX_RANDOMGENERATOR_H__4A4F00B0_DB64_4B3C_9DD8_7B8D6AC704FB__INCLUDED_)