// Rsa.h: interface for the CRsa class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_RSA_H__E0A91F41_DF86_11D6_B0C1_00E04C391A51__INCLUDED_)
#define AFX_RSA_H__E0A91F41_DF86_11D6_B0C1_00E04C391A51__INCLUDED_

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


//////////////////////////////////////////////////////////////////////
#include "BigInt.h"

//////////////////////////////////////////////////////////////////////
//RSA(class CRsa)
class CRsa
{
public:
	CRsa();
    // 以下代碼作者：0200950 原常青
	int 	Encrypt(char *Out,char *In,UINT len,char *KeyStr,char *ModStr);//加密
	int 	Decrypt(char *Out,char *In,UINT len,char *KeyStr,char *ModStr)//解密
			{return Encrypt(Out,In,len,KeyStr,ModStr);}
	bool    GetKey(BigInt &p,BigInt &q,BigInt &e,BigInt &d,BigInt &n,
		           UINT plen,UINT qlen,UINT elen);//獲取RSA密鑰對
	bool    SetKey(char *KeyStr,char *ModStr);//由輸入密鑰串設置RSA密鑰和模n

private:
    BigInt  key,n,Zero;//密鑰，模n，常量0
	CBigInt BI;
};

#endif // !defined(AFX_RSA_H__E0A91F41_DF86_11D6_B0C1_00E04C391A51__INCLUDED_)