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#pragma once
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include "iAlgEnc_global.h"
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typedef unsigned long DWORD;
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typedef unsigned char UCHAR,*PUCHAR;
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typedef void *PVOID,*LPVOID;
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typedef unsigned char byte;
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typedef DWORD *PDWORD,*LPDWORD;
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// AES算法实现
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class I_ALGENC_EXPORT zxAes
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{
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public:
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zxAes(int nKeySize, unsigned char* pKeyBytes);
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~zxAes();
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// 入口函数
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void enc(unsigned char* input, unsigned char* output);
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void dec(unsigned char* input, unsigned char* output);
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private:
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void initParas(int nKeySize, unsigned char* pKeyBytes);//设置初始参数
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void addRoundKey(int round); //轮密钥加
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void replaceSubBytes(); //S盒字节代换
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void replaceInvSubBytes(); //逆S盒字节代换
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void shiftRows(); //行移位
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void shiftInvRows();
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void mixColumns(); //列混淆
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void mixInvColumns();
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// 内部转换函数
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unsigned char _runMultiBy01(unsigned char b);
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unsigned char _runMultiBy02(unsigned char b);
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unsigned char _runMultiBy03(unsigned char b);
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unsigned char _runMultiBy09(unsigned char b);
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unsigned char _runMultiBy0b(unsigned char b);
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unsigned char _runMultiBy0d(unsigned char b);
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unsigned char _runMultiBy0e(unsigned char b);
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void enpandKey(); //密钥扩展
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unsigned char* replaceSubWord(unsigned char* word); //密钥代换
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unsigned char* shiftWord(unsigned char* word); //密钥移位
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private:
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unsigned char m_arrStates[4][4];//状态缓存
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int m_nSizeBlock; //块大小（32-bits）
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int m_nSizeKey; //秘钥大小
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int m_nSizeRound; //轮大小
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// 内部局部变量
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unsigned char* m_pArrKeys;
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unsigned char* m_pArrChars;
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unsigned char* m_pArrSBox;
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unsigned char* m_pArrISBox;
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unsigned char* m_pArrRcon;
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};
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