January 31, 2022

AES-P.Z

先贴个我手打的源码

AES-EBC

Aes.h

#ifndef AES_H
#define AES_H

/**
 *	参数 p: 明文的字符串数组
 *	参数 plen: 明文的长度，长度必须是16的倍数
 *	参数 key: 密钥的字符串数组
 */
void Aes(char * p, int plen, char * key);

/**
 *	参数 c: 密文的字符串数组
 *	参数 clen: 密文的长度，长度必须是16的倍数
 *	参数 key: 密钥的字符串数组
 */
void DeAes(char * c, int clen, char * key);

#endif

Aes.c

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "AES.h"

/**
 *	local function
 */

//密钥扩展
static void ExtendKey(char * key); 

//轮密钥加 
static void AddRoundKey(int array[4][4], int round);

//En 行移位
static void ShiftRows(int array[4][4]);
//De 行移位
static void DeShiftRows(int array[4][4]); 

//En 字节代换
static void SubBytes(int array[4][4]); 
//De 字节代换 
static void DeSubBytes(int array[4][4]);

//En 列混合 
static void MixColumns(int array[4][4]);
//De 列混合 
static void DeMixColumns(int array[4][4]);


/**
 *	local function detail
 */
 
//状态矩阵 
static void ConvertToIntArray(char * str, int pa[4][4]); 
 
//单字节代换detail 
static int GetLeft4Bit(int num);
static int GetRight4Bit(int num);

//密钥扩展的T函数 
static int T(int num, int round); 

//单行左移位 + T函数
static void LeftLoop4Int(int array[4], int step);
//单行右移位
static void RightLoop4Int(int array[4], int step);

//单字节S代换 
static int GetNumFromSBox(int index);
//单字节S2代换 
static int GetNumFromS2Box(int index);

//矩阵乘法 
static int GFMul2(int s);
static int GFMul3(int s);
static int GFMul4(int s);
static int GFMul8(int s);
static int GFMul9(int s);
static int GFMul11(int s);
static int GFMul12(int s);
static int GFMul13(int s);
static int GFMul14(int s);
static int GFMul(int n, int s);


//切割 整形 成 整形数组  
static void SplitIntToArray(int num, int array[4]);

//符数组 转 整形
static int GetWordFromStr(char * str);

//整形数组 转 整形 
static int MergeArrayToInt(int array[4]); 

//字符数组 转 整形 detail
static int GetIntFromChar(char c);

//将整形数组转成字符串 
static void ConvertArrayToStr(int array[4][4], char * str);

//检查密钥长度 
static int CheckKeyLen(int len); 

//两个 整形数组 异或 
static void AddRoundToArray(int aArray[4][4], int bArray[4][4]); 

//将 4个32位整形 转换成 4 x 4 数组 
static void GetArrayFrom4W(int i, int array[4][4]);


/**
 *	S BOX
 */ 
static const int S[16][16] = 
{ 
	0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
	0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
	0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
	0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
	0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
	0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
	0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
	0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
	0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
	0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
	0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
	0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
	0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
	0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
	0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
	0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 
};

/**
 *	RE S BOX
 */
static const int S2[16][16] = 
{ 
	0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
	0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
	0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
	0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
	0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
	0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
	0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
	0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
	0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
	0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
	0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
	0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
	0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
	0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
	0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
	0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d 
};

/**
 *	获取整形数据的低8位的左4个位 (字节代换引用)
 */ 
static int GetLeft4Bit(int num)
{
	int left = num & 0x000000F0;
	
	return left >> 4;	
}

/** 
 *	获取整形数据的低8位的右4个位 (字节代引用)
 */
static int GetRight4Bit(int num)
{
	return num & 0x0000000F;	
}

/**
 *	根据索引，从S盒获得元素 (字节代换) 
 */
static int GetNumFromSBox(int index)
{
	int row = GetLeft4Bit(index);
	int col = GetRight4Bit(index);
	
	return S[row][col];
} 

/**
 *	把一个字符转成整形 
 */
static int GetIntFromChar(char c)
{
	int result = (int) c;
	
	return result & 0x000000FF;
}

/**
 *	把16个字符转变成 4 x 4 的数组
 *	该矩阵的字节的排序顺序为从上到下，从做左到右以此排序以此排序  
 */ 
static void ConvertToIntArray(char * str, int pa[4][4])
{
	int k = 0;
	
	for ( int i = 0; i < 4; i++ )
		for ( int j = 0; j < 4; j++ )
		{
			pa[j][i] = GetIntFromChar(str[k]);
			k++;	
		}	
} 

/**
 *	把连续的4个字符数组合并成一个4字节整形
 */
static int GetWordFromStr(char * str)
{
	int one = GetIntFromChar(str[0]);
	one = one << 24;
	
	int two = GetIntFromChar(str[1]);
	two = two << 16;
	
	int three = GetIntFromChar(str[2]);
	three = three << 8;
	
	int four = GetIntFromChar(str[3]);
	
	return one | two | three | four;	
} 

/**
 * 	四字节 整形数组 转换成一个4字节整形 
 */
static int MergeArrayToInt(int array[4])
{
	int one = array[0] << 24;
	int two = array[1] << 16;
	int three = array[2] << 8;
	int four = array[3];
	
	return one | two | three | four;	
} 

/**
 *	把一个4字节的数每8位切分取出
 *	放进一个4个元素的整形数组
 */
static void SplitIntToArray(int num, int array[4])
{
	int one = num >> 24;
	array[0] = one & 0x000000FF;
	
	int two = num >> 16;
	array[1] = two & 0x000000FF;
	
	int three = num >> 8;
	array[2] = three & 0x000000FF;

	array[3] = num & 0x000000FF;	
} 

/**
 *	将数组中的元素循环左移step位
 */
static void LeftLoop4Int(int array[4], int step)
{
	int tmp[4];
	
	for ( int i = 0; i < 4; i++ )
		tmp[i] = array[i];
	
	int index = step % 4 == 0 ? 0 : step % 4;		//去掉好像也可以 
	for ( int i = 0; i < 4; i++ )
	{
		array[i] = tmp[index];
		index++;
		index = index % 4;
	}
} 

/**
 *	常量轮值表
 */
static const int Rcon[10] = 
{ 
	0x01000000, 0x02000000,
	0x04000000, 0x08000000,
	0x10000000, 0x20000000,
	0x40000000, 0x80000000,
	0x1b000000, 0x36000000 
};

/**
 *	密钥扩展中的T函数
 */
static int T(int num, int round)
{
	int NumArray[4];
	
	SplitIntToArray(num, NumArray);		//整形 转 整形数组 
	
	LeftLoop4Int(NumArray, 1);			//1. 字循环
	
	for ( int i = 0; i < 4; i++ )		//2. 字节代换
		NumArray[i] = GetNumFromSBox(NumArray[i]);//S盒换 
	
	int result = MergeArrayToInt(NumArray);		//转成整形
	
	return result ^ Rcon[round];		//3. 轮常量异或	
} 

/**
 *	密钥对应的扩展数组
 */
static int w[44];

/**
 *	扩展密钥，初始化w[44]的每个元素
 */
static void ExtendKey(char * key)
{
	for ( int i = 0; i < 4; i++ )
		w[i] = GetWordFromStr(key + i * 4);		//每次取四个字节当成一个w元素
		 
	for ( int i = 4, j = 0; i < 44; i++ )
	{
		if ( i % 4 == 0)
		{
			w[i] = w[i - 4] ^ T(w[i - 1], j);	//如果是4的倍数 用到T函数 
			j++;	
		}
		else
			w[i] = w[i - 4] ^ w[i - 1];			//不是4的倍数 
	}	
} 

/**
 *	轮密钥加
 */
static void AddRoundKey(int array[4][4], int round)
{
	int warray[4];
	
	for ( int i = 0; i < 4; i++ )
	{
		SplitIntToArray(w[round * 4 + i], warray);		//取出当前轮的密钥
		
		for ( int j = 0; j < 4; j++ )
		{
			array[j][i] = array[j][i] ^ warray[j];		//注意是矩阵 所以是竖着的	
		}	
	}	
} 

/**
 *	字节代换
 */
static void SubBytes(int array[4][4])
{
	for ( int i = 0; i < 4; i++ )
		for ( int j = 0; j < 4; j++ )
			array[i][j] = GetNumFromSBox(array[i][j]);	
} 

/**
 *	行移位
 */
static void ShiftRows(int array[4][4])
{
	int rowTwo[4], rowThree[4], rowFour[4];
	
	for ( int i = 0; i < 4; i++ )				//复制状态矩阵2 3 4行 
	{
		rowTwo[i] = array[1][i];
		rowThree[i] = array[2][i];
		rowFour[i] = array[3][i];
	}	
	
	LeftLoop4Int(rowTwo, 1);					//对应行移动对应位数 
	LeftLoop4Int(rowThree, 2);
	LeftLoop4Int(rowFour, 3);
	
	for ( int i = 0; i < 4; i++ )				//放回去 
	{
		array[1][i] =  rowTwo[i];
		array[2][i] =  rowThree[i];
		array[3][i] =  rowFour[i];
	} 
} 

/**
 *	列混合用到的矩阵
 */ 
static const int colM[4][4] = 
{ 
	2, 3, 1, 1,
	1, 2, 3, 1,
	1, 1, 2, 3,
	3, 1, 1, 2 
};

static int GFMul2(int s)
{
	int result = s << 1;
	int a7 = result & 0x00000100;			//判断位移后的那位是否为 1
	 
	if ( a7 != 0 )
	{
		result = result & 0x000000FF;
		result = result ^ 0x1B;				//矩阵乘法的特殊性	
	} 
	
	return result;
}

static int GFMul3(int s)
{
	return GFMul2(s) ^ s;
}

static int GFMul4(int s)
{
	return GFMul2(GFMul2(s));
}

static int GFMul8(int s)
{
	return GFMul2(GFMul4(s));
}

static int GFMul9(int s)
{
	return GFMul8(s) ^ s;
}

static int GFMul11(int s)
{
	return GFMul9(s) ^ GFMul2(s);
}

static int GFMul12(int s)
{
	return GFMul8(s) ^ GFMul4(s);
}

static int GFMul13(int s)
{
	return GFMul12(s) ^ s;
}

static int GFMul14(int s)
{
	return GFMul12(s) ^ GFMul2(s);
}


/**
 *	GF上的二元运算
 */
static int GFMul(int n, int s)
{
	int result;
	
	if ( n == 1 )
		result = s;
	else if ( n == 2 )
		result = GFMul2(s);
	else if ( n == 3 )
		result = GFMul3(s);
	else if ( n == 9 )
		result = GFMul9(s);
	else if ( n == 0xB )
		result = GFMul11(s);
	else if ( n == 0xD )
		result = GFMul13(s);
	else if ( n == 0xE )
		result = GFMul14(s);
	
	return result;	
} 

/**
 *	列混合
 */ 
static void MixColumns(int array[4][4])
{
	int tmpArray[4][4];
	
	for ( int i = 0; i < 4; i++ )
		for ( int j = 0; j < 4; j++ )
			tmpArray[i][j] = array[i][j];
	
	for ( int i = 0; i < 4; i++ )								//与常量矩阵相乘 
		for ( int j = 0; j < 4; j++ )
			array[i][j] = 	GFMul(colM[i][0], tmpArray[0][j]) ^ 
							GFMul(colM[i][1], tmpArray[1][j]) ^
							GFMul(colM[i][2], tmpArray[2][j]) ^
							GFMul(colM[i][3], tmpArray[3][j]);
							
}

/**
 *	把 4 x 4 整形数组转回字符串 
 */
static void ConvertArrayToStr(int array[4][4], char * str)
{
	for ( int i = 0; i < 4; i++ )
		for ( int j = 0; j < 4; j++ )
		{
			*str++ = (char) array[j][i];			//注意是竖着取
//			printf("0x%2X, ", array[j][i]);			//加密数据测试successful 
		}
				
} 

/**
 *	检查密钥长度
 */ 
static int CheckKeyLen(int len)
{
	if ( len == 16 )
		return 1;
	else
		return 0;	
} 

/**
 *	参数 p: 明文的字符串数组
 *	参数 plen: 明文的长度
 *	参数 key: 密钥的字符串数组
 */
void Aes(char * p, int plen, char * key)
{
	int keylen = strlen(key);
	
	if ( plen == 0 || plen % 16 != 0 )
	{
		printf("明文字符长度必须为16的倍数");
		exit(0);	
	}
	
	if (!CheckKeyLen(keylen))
	{
		printf("长度必须为16位");
		exit(0); 
	}
	
	ExtendKey(key);							//扩展密钥 
	
	int pArray[4][4];
	
	for ( int k = 0; k < plen; k += 16 )
	{
		ConvertToIntArray(p + k, pArray);	//将明文16个字节转成状态矩阵
		
		AddRoundKey(pArray, 0);				//第0轮 轮密钥加
		
		for ( int i = 1; i < 10; i++ )
		{
			SubBytes(pArray);				//字节代换
			
			ShiftRows(pArray);				//行移位
			
			MixColumns(pArray);				//列混合
			
			AddRoundKey(pArray, i);			//轮密钥加	
		}
		
		//第10轮
		SubBytes(pArray);
		
		ShiftRows(pArray);
		
		AddRoundKey(pArray, 10);
		
		ConvertArrayToStr(pArray, p + k);	//转回字符串 
	}	
} 

/**
 *	根据索引从逆S盒取值
 */
static int GetNumFromS2Box(int index)
{
	int row = GetLeft4Bit(index);
	int col = GetRight4Bit(index);
	
	return S2[row][col];
} 

/**
 *	逆字节代换
 */
static void DeSubBytes(int array[4][4])
{
	for ( int i = 0; i < 4; i++ )
		for ( int j = 0; j < 4; j++ )
			array[i][j] = GetNumFromS2Box(array[i][j]);
} 

/**
 *	把4个元素的数组循环右移
 */
static void RightLoop4Int(int array[4], int step)
{
	int tmp[4];
	
	for ( int i = 0; i < 4; i++ )
		tmp[i] = array[i];
	
	int index = step % 4 == 0 ? 0 : step % 4;
	
	index = 3 - index;
	for ( int i = 3; i >= 0; i-- )
	{
		array[i] = tmp[index];
		index--;
		index = index == -1 ? 3 : index;
	}	
} 

/**
 *	逆行移位
 */
static void DeShiftRows(int array[4][4])
{
	int rowTwo[4], rowThree[4], rowFour[4];
	
	for ( int i = 0; i < 4; i++ )
	{
		rowTwo[i] = array[1][i];
		rowThree[i] = array[2][i];
		rowFour[i] = array[3][i];	
	}
	
	RightLoop4Int(rowTwo, 1);
	RightLoop4Int(rowThree, 2);
	RightLoop4Int(rowFour, 3);
	
	for (int i = 0; i < 4; i++ )
	{
		array[1][i] = rowTwo[i];
		array[2][i] = rowThree[i];
		array[3][i]	= rowFour[i];
	}	
}

/**
 *	逆列混合矩阵
 */
static const int deColM[4][4] =
{
	0xE, 0xB, 0xD, 0x9,
	0x9, 0xE, 0xB, 0xD,
	0xD, 0x9, 0xE, 0xB,
	0xB, 0xD, 0x9, 0xE	
}; 

/**
 *	逆列混合
 */
static void DeMixColumns(int array[4][4])
{
	int tmpArray[4][4];
	
	for ( int i = 0; i < 4; i++ )
		for ( int j = 0; j < 4; j++ )
			tmpArray[i][j] = array[i][j];
	
	for ( int i = 0; i < 4; i++ )
		for ( int j = 0; j < 4; j++ )
			array[i][j] = 	GFMul(deColM[i][0], tmpArray[0][j]) ^
							GFMul(deColM[i][1], tmpArray[1][j]) ^
							GFMul(deColM[i][2], tmpArray[2][j]) ^
							GFMul(deColM[i][3], tmpArray[3][j]);	
} 

/**
 *	把两个 4 x 4 数组进行异或
 */
static void AddRoundToArray(int aArray[4][4], int bArray[4][4])
{
	for ( int i = 0; i < 4; i++ )
		for ( int j = 0; j < 4; j++ )
			aArray[i][j] = aArray[i][j] ^ bArray[i][j];
} 

/**
 *	从4个32位密钥中获取 4 x 4 的数组
 *	用于逆列混合
 */
static void GetArrayFrom4W(int i, int array[4][4])
{
	int index = i * 4;
	int colOne[4], colTwo[4], colThree[4], colFour[4];
	
	SplitIntToArray(w[index], colOne);
	SplitIntToArray(w[index + 1], colTwo);
	SplitIntToArray(w[index + 2], colThree);
	SplitIntToArray(w[index + 3], colFour);
	
	for ( int i = 0; i < 4; i++ )
	{
		array[i][0] = colOne[i];
		array[i][1] = colTwo[i];
		array[i][2] = colThree[i];
		array[i][3] = colFour[i];	
	}	
} 

/**
 *	参数 c: 密文的字符串数组
 *	参数 clen: 密文的长度
 *	参数 key: 密钥的字符串数组 
 */
void DeAes(char * c, int clen, char * key)
{
	int keylen = strlen(key);
	
	if ( clen == 0 || clen % 16 != 0 )
	{
		printf("密文字符程序必须是16的倍数");
		exit(0);	
	}
	
	if (!CheckKeyLen(keylen))
	{
		printf("密钥字符长度错误");
		exit(0);	
	}
	
	ExtendKey(key);
	
	int cArray[4][4];
	
	for ( int k = 0; k < clen; k += 16 )
	{
		ConvertToIntArray(c + k, cArray);			//状态矩阵	
		
		AddRoundKey(cArray, 10);					//轮密钥加 第10轮开始 
		
		int wArray[4][4];
		
		for ( int i = 9; i >= 1; i-- )
		{
			DeSubBytes(cArray);						//逆字节代换 
			
			DeShiftRows(cArray);					//逆行移位 
			
			DeMixColumns(cArray);					//逆列混合 
			
			GetArrayFrom4W(i, wArray);
			DeMixColumns(wArray);					//逆列混合 对象是轮密钥(我不理解)
			
			AddRoundToArray(cArray, wArray);		//轮密钥加 对象是逆列混合轮密钥 
		}
		
		DeSubBytes(cArray);
		
		DeShiftRows(cArray);
		
		AddRoundKey(cArray, 0);						//轮密钥加 第0轮
		
		ConvertArrayToStr(cArray, c + k);			//转成字符串 
	} 
} 



/**
 *	TEST FUNCTION
 */

//int main(void)
//{
////	printf("0x%X", GetNumFromSBox(0x01));
//	int pa[4][4];
//	char str[] = "ABCDEFGHIJKLMNOP";
//	int i, j;
//	int num = 0x12345678;
//	int ar[4];
//		
//	ConvertToIntArray(str, pa);
//	
//	for ( i = 0; i < 4; i++ )
//		printf("0x%X, ", pa[0][i]);
//	puts("\n");
//	
//	LeftLoop4Int(pa[0], 1); 
//	
//	for ( i = 0; i < 4; i++ )
//		printf("0x%X, ", pa[0][i]);
//	
////	for ( i = 0; i < 4; i++ )
////	{
////		for ( j = 0; j < 4; j++ )
////			printf("0x%X, ", pa[i][j]);
////		printf("\n");
////	}	
//	
//	return 0;	
//}

main.c

#include <stdio.h>
#include "AES.h"

int main(void)
{
	int i, j;
	char p[] = "ABCDEFGHIJKLMNOP";
	char key[] = "ABCDEFGHIJKLMNOP";
	
	Aes(p, 16, key);
	
	printf("Encrypt:");
	for ( i = 0; i < 16; i++ )
		printf("0x%X, ", p[i] & 0xFF);
	
	puts("\n");
	
	DeAes(p, 16, key); 
	
	printf("Decrypt:");
	for ( i = 0; i < 16; i++ )
		printf("0x%X, ", p[i] & 0xFF);
	puts("\n\nPlain text:");
	puts(p);
	
	
	return 0;
}

笔记

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This post is written by P.Z, licensed under CC BY-NC 4.0.