上篇说道LoadRunner中引用DES.h文件,对字符串进行加密,加密耗时很长,这篇主要讲生成DES加密的dll文件,在LoadRunner中引用,解决耗时问题。
编译工具
本次生成dll,是用的Eclipse for c/c++进行开发的,编译工具选择的是MinGW,工具的安装过程如下:
1.MinGW官网http://www.mingw.org/ 下载安装包并进行安装。
2.下载Eclipse for c/c++,官网 http://www.eclipse.org/downloads/packages/eclipse-ide-cc-developers/neon2
编译
1.新创建一个C Project,选择Shared Library
2.新建一个myDes.c文件
3.写入DES加密方法
#include "stdio.h"
#include "string.h"
#include "stdlib.h"
int finallyPermute(int endByte[64],int fpByte[64]);
int generateKeys(int keys[64],int newkeys[16][48]);
int initPermute(int data[64],int ipByte[64]);
int expandPermute(int rightData[32],int epByte[48]);
int xor(int byteone[48],int bytetwo[48],int xorByte[48]);
int sBoxPermute(int expandByte[48],int sBoxByte[32]);
int pPermute(int sBoxByte[32],int pBoxPermute[32]);
int ByteToBit(char ch, int bit[8]) {
int cnt;
int i;
for (cnt = 0, i = 7; cnt < 8; cnt++, i--) {
*(bit + i) = (int) (ch >> cnt) & 1;
}
return 0;
}
char BitToByte(int bit[4], char *chs) {
int cnt;
cnt = (int) bit[0] * 1000 + (int) bit[1] * 100 + (int) bit[2] * 10
+ (int) bit[3];
switch (cnt) {
case 0:
*chs = '0';
break;
case 1:
*chs = '1';
break;
case 10:
*chs = '2';
break;
case 11:
*chs = '3';
break;
case 100:
*chs = '4';
break;
case 101:
*chs = '5';
break;
case 110:
*chs = '6';
break;
case 111:
*chs = '7';
break;
case 1000:
*chs = '8';
break;
case 1001:
*chs = '9';
break;
case 1010:
*chs = 'A';
break;
case 1011:
*chs = 'B';
break;
case 1100:
*chs = 'C';
break;
case 1101:
*chs = 'D';
break;
case 1110:
*chs = 'E';
break;
case 1111:
*chs = 'F';
break;
}
return 0;
}
int Char4ToBit64(char *ch, int bit[64]) {
int cnt;
int i;
int chLen=strlen(ch);
if (chLen<4) {
for (cnt = 0; cnt < chLen; cnt++) {
for (i = 0; i < 8; i++) {
*(bit + (cnt << 3) + i) = 0;
}
}
for (cnt = 0; cnt < chLen; cnt++) {
ByteToBit(*(ch + cnt), bit + 8 + (cnt << 4));
}
for (cnt = chLen; cnt < 4; cnt++) {
for (i = 0; i < 16; i++) {
*(bit + (cnt << 4) + i) = 0;
}
}
} else {
for (cnt = 0; cnt < 4; cnt++) {
for (i = 0; i < 8; i++) {
*(bit + (cnt << 4) + i) = 0;
}
}
for (cnt = 0; cnt < 4; cnt++) {
ByteToBit(*(ch + cnt), bit + 8 + (cnt << 4));
}
}
return 0;
}
int Bit64ToChar16(int bit[64], char ch[16]) {
int cnt;
for (cnt = 0; cnt < 16; cnt++) {
BitToByte(bit + (cnt * 4), ch + cnt);
}
return 0;
}
int enc(int data[64],int key[64],int fpByte[64]){
int i = 0, j = 0, k = 0, m = 0, n = 0;
int ipLeft[32],ipRight[32],tempLeft[32];
int keys[16][48];
int ipByte[64],finalData[64],newkey[48],epByte[48],xorByte[48],sBoxByte[32],pBoxPermute[32],tempRight[32];
generateKeys(key,keys);
initPermute(data,ipByte);
for (k = 0; k < 32; k++) {
ipLeft[k] = ipByte[k];
ipRight[k] = ipByte[32 + k];
}
for (i = 0; i < 16; i++) {
for (j = 0; j < 32; j++) {
tempLeft[j] = ipLeft[j];
ipLeft[j] = ipRight[j];
}
for (m = 0; m < 48; m++) {
newkey[m] = keys[i][m];
}
expandPermute(ipRight,epByte);
xor(epByte,newkey,xorByte);
sBoxPermute(xorByte,sBoxByte);
pPermute(sBoxByte,pBoxPermute);
xor(pBoxPermute,tempLeft,tempRight);
for (n = 0; n < 32; n++) {
ipRight[n] = tempRight[n];
}
}
for (i = 0; i < 32; i++) {
finalData[i] = ipRight[i];
finalData[32 + i] = ipLeft[i];
}
finallyPermute(finalData,fpByte);
return 0;
}
int finallyPermute(int endByte[64],int fpByte[64]){
fpByte[0] = endByte[39];
fpByte[1] = endByte[7];
fpByte[2] = endByte[47];
fpByte[3] = endByte[15];
fpByte[4] = endByte[55];
fpByte[5] = endByte[23];
fpByte[6] = endByte[63];
fpByte[7] = endByte[31];
fpByte[8] = endByte[38];
fpByte[9] = endByte[6];
fpByte[10] = endByte[46];
fpByte[11] = endByte[14];
fpByte[12] = endByte[54];
fpByte[13] = endByte[22];
fpByte[14] = endByte[62];
fpByte[15] = endByte[30];
fpByte[16] = endByte[37];
fpByte[17] = endByte[5];
fpByte[18] = endByte[45];
fpByte[19] = endByte[13];
fpByte[20] = endByte[53];
fpByte[21] = endByte[21];
fpByte[22] = endByte[61];
fpByte[23] = endByte[29];
fpByte[24] = endByte[36];
fpByte[25] = endByte[4];
fpByte[26] = endByte[44];
fpByte[27] = endByte[12];
fpByte[28] = endByte[52];
fpByte[29] = endByte[20];
fpByte[30] = endByte[60];
fpByte[31] = endByte[28];
fpByte[32] = endByte[35];
fpByte[33] = endByte[3];
fpByte[34] = endByte[43];
fpByte[35] = endByte[11];
fpByte[36] = endByte[51];
fpByte[37] = endByte[19];
fpByte[38] = endByte[59];
fpByte[39] = endByte[27];
fpByte[40] = endByte[34];
fpByte[41] = endByte[2];
fpByte[42] = endByte[42];
fpByte[43] = endByte[10];
fpByte[44] = endByte[50];
fpByte[45] = endByte[18];
fpByte[46] = endByte[58];
fpByte[47] = endByte[26];
fpByte[48] = endByte[33];
fpByte[49] = endByte[1];
fpByte[50] = endByte[41];
fpByte[51] = endByte[9];
fpByte[52] = endByte[49];
fpByte[53] = endByte[17];
fpByte[54] = endByte[57];
fpByte[55] = endByte[25];
fpByte[56] = endByte[32];
fpByte[57] = endByte[0];
fpByte[58] = endByte[40];
fpByte[59] = endByte[8];
fpByte[60] = endByte[48];
fpByte[61] = endByte[16];
fpByte[62] = endByte[56];
fpByte[63] = endByte[24];
return 0;
}
int pPermute(int sBoxByte[32],int pBoxPermute[32]){
pBoxPermute[0] = sBoxByte[15];
pBoxPermute[1] = sBoxByte[6];
pBoxPermute[2] = sBoxByte[19];
pBoxPermute[3] = sBoxByte[20];
pBoxPermute[4] = sBoxByte[28];
pBoxPermute[5] = sBoxByte[11];
pBoxPermute[6] = sBoxByte[27];
pBoxPermute[7] = sBoxByte[16];
pBoxPermute[8] = sBoxByte[0];
pBoxPermute[9] = sBoxByte[14];
pBoxPermute[10] = sBoxByte[22];
pBoxPermute[11] = sBoxByte[25];
pBoxPermute[12] = sBoxByte[4];
pBoxPermute[13] = sBoxByte[17];
pBoxPermute[14] = sBoxByte[30];
pBoxPermute[15] = sBoxByte[9];
pBoxPermute[16] = sBoxByte[1];
pBoxPermute[17] = sBoxByte[7];
pBoxPermute[18] = sBoxByte[23];
pBoxPermute[19] = sBoxByte[13];
pBoxPermute[20] = sBoxByte[31];
pBoxPermute[21] = sBoxByte[26];
pBoxPermute[22] = sBoxByte[2];
pBoxPermute[23] = sBoxByte[8];
pBoxPermute[24] = sBoxByte[18];
pBoxPermute[25] = sBoxByte[12];
pBoxPermute[26] = sBoxByte[29];
pBoxPermute[27] = sBoxByte[5];
pBoxPermute[28] = sBoxByte[21];
pBoxPermute[29] = sBoxByte[10];
pBoxPermute[30] = sBoxByte[3];
pBoxPermute[31] = sBoxByte[24];
return 0;
}
int getBoxBinary(int i,int binary[4]){
switch (i) {
case 0:
binary[0] = 0;
binary[1] = 0;
binary[2] = 0;
binary[3] = 0;
break;
case 1:
binary[0] = 0;
binary[1] = 0;
binary[2] = 0;
binary[3] = 1;
break;
case 2:
binary[0] = 0;
binary[1] = 0;
binary[2] = 1;
binary[3] = 0;
break;
case 3:
binary[0] = 0;
binary[1] = 0;
binary[2] = 1;
binary[3] = 1;
break;
case 4:
binary[0] = 0;
binary[1] = 1;
binary[2] = 0;
binary[3] = 0;
break;
case 5:
binary[0] = 0;
binary[1] = 1;
binary[2] = 0;
binary[3] = 1;
break;
case 6:
binary[0] = 0;
binary[1] = 1;
binary[2] = 1;
binary[3] = 0;
break;
case 7:
binary[0] = 0;
binary[1] = 1;
binary[2] = 1;
binary[3] = 1;
break;
case 8:
binary[0] = 1;
binary[1] = 0;
binary[2] = 0;
binary[3] = 0;
break;
case 9:
binary[0] = 1;
binary[1] = 0;
binary[2] = 0;
binary[3] = 1;;
break;
case 10:
binary[0] = 1;
binary[1] = 0;
binary[2] = 1;
binary[3] = 0;
break;
case 11:
binary[0] = 1;
binary[1] = 0;
binary[2] = 1;
binary[3] = 1;
break;
case 12:
binary[0] = 1;
binary[1] = 1;
binary[2] = 0;
binary[3] = 0;
break;
case 13:
binary[0] = 1;
binary[1] = 1;
binary[2] = 0;
binary[3] = 1;
break;
case 14:
binary[0] = 1;
binary[1] = 1;
binary[2] = 1;
binary[3] = 0;
break;
case 15:
binary[0] = 1;
binary[1] = 1;
binary[2] = 1;
binary[3] = 1;
break;
}
return 0;
}
int sBoxPermute(int expandByte[48],int sBoxByte[32]){
int binary[4];
int s1[4][16] = {
{ 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 },
{ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8 },
{ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 },
{ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 } };
int s2[4][16] = {
{ 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
{ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5 },
{ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 },
{ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 } };
int s3[4][16] = {
{ 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
{ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1 },
{ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 },
{ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 } };
int s4[4][16] = {
{ 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
{ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9 },
{ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 },
{ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 } };
int s5[4][16] = {
{ 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
{ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6 },
{ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 },
{ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 } };
int s6[4][16] = {
{ 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
{ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8 },
{ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 },
{ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 } };
int s7[4][16] = {
{ 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
{ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6 },
{ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 },
{ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 } };
int s8[4][16] = {
{ 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
{ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2 },
{ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 },
{ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } };
int m;
for (m = 0; m < 8; m++) {
int i = 0, j = 0;
i = expandByte[m * 6 + 0] * 2 + expandByte[m * 6 + 5];
j = expandByte[m * 6 + 1] * 2 * 2 * 2 + expandByte[m * 6 + 2] * 2
* 2 + expandByte[m * 6 + 3] * 2 + expandByte[m * 6 + 4];
switch (m) {
case 0:
getBoxBinary(s1[i][j],binary);
break;
case 1:
getBoxBinary(s2[i][j],binary);
break;
case 2:
getBoxBinary(s3[i][j],binary);
break;
case 3:
getBoxBinary(s4[i][j],binary);
break;
case 4:
getBoxBinary(s5[i][j],binary);
break;
case 5:
getBoxBinary(s6[i][j],binary);
break;
case 6:
getBoxBinary(s7[i][j],binary);
break;
case 7:
getBoxBinary(s8[i][j],binary);
break;
}
sBoxByte[m * 4 + 0] = binary[0];
sBoxByte[m * 4 + 1] = binary[1];
sBoxByte[m * 4 + 2] = binary[2];
sBoxByte[m * 4 + 3] = binary[3];
}
return 0;
}
int xor(int byteone[48],int bytetwo[48],int xorByte[48]){
int i;
for (i = 0; i < 48; i++) {
xorByte[i] = byteone[i] ^ bytetwo[i];
}
return 0;
}
int expandPermute(int rightData[32],int epByte[48]){
int i;
for (i = 0; i < 8; i++) {
if (i == 0) {
epByte[i * 6 + 0] = rightData[31];
} else {
epByte[i * 6 + 0] = rightData[i * 4 - 1];
}
epByte[i * 6 + 1] = rightData[i * 4 + 0];
epByte[i * 6 + 2] = rightData[i * 4 + 1];
epByte[i * 6 + 3] = rightData[i * 4 + 2];
epByte[i * 6 + 4] = rightData[i * 4 + 3];
if (i == 7) {
epByte[i * 6 + 5] = rightData[0];
} else {
epByte[i * 6 + 5] = rightData[i * 4 + 4];
}
}
return 0;
}
int generateKeys(int keys[64],int newkeys[16][48]){
int key[56];
int tempKey[48];
int i,j,k,m;
int loop[]={ 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 };
for ( i = 0; i < 7; i++) {
for ( j = 0, k = 7; j < 8; j++, k--) {
key[i * 8 + j] = keys[8 * k + i];
}
}
for (i = 0; i < 16; i++) {
int tempLeft = 0;
int tempRight = 0;
for (j = 0; j < loop[i]; j++) {
tempLeft = key[0];
tempRight = key[28];
for (k = 0; k < 27; k++) {
key[k] = key[k + 1];
key[28 + k] = key[29 + k];
}
key[27] = tempLeft;
key[55] = tempRight;
}
tempKey[0] = key[13];
tempKey[1] = key[16];
tempKey[2] = key[10];
tempKey[3] = key[23];
tempKey[4] = key[0];
tempKey[5] = key[4];
tempKey[6] = key[2];
tempKey[7] = key[27];
tempKey[8] = key[14];
tempKey[9] = key[5];
tempKey[10] = key[20];
tempKey[11] = key[9];
tempKey[12] = key[22];
tempKey[13] = key[18];
tempKey[14] = key[11];
tempKey[15] = key[3];
tempKey[16] = key[25];
tempKey[17] = key[7];
tempKey[18] = key[15];
tempKey[19] = key[6];
tempKey[20] = key[26];
tempKey[21] = key[19];
tempKey[22] = key[12];
tempKey[23] = key[1];
tempKey[24] = key[40];
tempKey[25] = key[51];
tempKey[26] = key[30];
tempKey[27] = key[36];
tempKey[28] = key[46];
tempKey[29] = key[54];
tempKey[30] = key[29];
tempKey[31] = key[39];
tempKey[32] = key[50];
tempKey[33] = key[44];
tempKey[34] = key[32];
tempKey[35] = key[47];
tempKey[36] = key[43];
tempKey[37] = key[48];
tempKey[38] = key[38];
tempKey[39] = key[55];
tempKey[40] = key[33];
tempKey[41] = key[52];
tempKey[42] = key[45];
tempKey[43] = key[41];
tempKey[44] = key[49];
tempKey[45] = key[35];
tempKey[46] = key[28];
tempKey[47] = key[31];
switch (i) {
case 0:
for (m = 0; m < 48; m++) {
newkeys[0][m] = tempKey[m];
}
break;
case 1:
for (m = 0; m < 48; m++) {
newkeys[1][m] = tempKey[m];
}
break;
case 2:
for (m = 0; m < 48; m++) {
newkeys[2][m] = tempKey[m];
}
break;
case 3:
for (m = 0; m < 48; m++) {
newkeys[3][m] = tempKey[m];
}
break;
case 4:
for (m = 0; m < 48; m++) {
newkeys[4][m] = tempKey[m];
}
break;
case 5:
for (m = 0; m < 48; m++) {
newkeys[5][m] = tempKey[m];
}
break;
case 6:
for (m = 0; m < 48; m++) {
newkeys[6][m] = tempKey[m];
}
break;
case 7:
for (m = 0; m < 48; m++) {
newkeys[7][m] = tempKey[m];
}
break;
case 8:
for (m = 0; m < 48; m++) {
newkeys[8][m] = tempKey[m];
}
break;
case 9:
for (m = 0; m < 48; m++) {
newkeys[9][m] = tempKey[m];
}
break;
case 10:
for (m = 0; m < 48; m++) {
newkeys[10][m] = tempKey[m];
}
break;
case 11:
for (m = 0; m < 48; m++) {
newkeys[11][m] = tempKey[m];
}
break;
case 12:
for (m = 0; m < 48; m++) {
newkeys[12][m] = tempKey[m];
}
break;
case 13:
for (m = 0; m < 48; m++) {
newkeys[13][m] = tempKey[m];
}
break;
case 14:
for (m = 0; m < 48; m++) {
newkeys[14][m] = tempKey[m];
}
break;
case 15:
for (m = 0; m < 48; m++) {
newkeys[15][m] = tempKey[m];
}
break;
}
}
return 0;
}
int initPermute(int data[64],int ipByte[64]){
int i = 0, m = 1, n = 0, j, k;
for (i = 0, m = 1, n = 0; i < 4; i++, m += 2, n += 2) {
for (j = 7, k = 0; j >= 0; j--, k++) {
ipByte[i * 8 + k] = data[j * 8 + m];
ipByte[i * 8 + k + 32] = data[j * 8 + n];
}
}
return 0;
}
int strEnc(char *data, char *key,char *result) {
int i, j, z,_len;
int frsitKeyBt[4][64];
int databt[64],fpByte[64];
char subChar[5] ;
char res[17];
int datalen = strlen(data);
int iterator = datalen / 4;
int remainder= datalen % 4;
_len=iterator*16+1;
if(remainder>0){
_len+=16;
}
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
subChar[j] = *(key + (4 * i) + j);
}
subChar[4]='\0';
Char4ToBit64(subChar, frsitKeyBt[i]);
}
for (z = 0; z < iterator; z++) {
for (j = 0; j < 4; j++) {
subChar[j] = *(data + (4 * z) + j);
}
subChar[4] = '\0';
Char4ToBit64(subChar, databt);
for (i = 0; i < 4; i++) {
enc(databt, frsitKeyBt[i], fpByte);
for (j = 0; j < 64; j++) {
databt[j]= fpByte[j];
}
}
Bit64ToChar16(fpByte, res);
res[16]='\0';
if(z == 0) {
strcpy(result, res);
} else {
strcat(result, res);
}
}
result[_len-1]='\0';
if(remainder>0){
for (i = 0; i 4 * iterator) + i);
}
subChar[remainder]='\0';
Char4ToBit64(subChar, databt);
for (i = 0; i < 4; i++) {
enc(databt, frsitKeyBt[i], fpByte);
for (j = 0; j < 64; j++) {
databt[j]= fpByte[j];
}
}
Bit64ToChar16(fpByte, res);
res[16]='\0';
if(iterator == 0) {
strcpy(result, res);
} else {
strcat(result, res);
}
}
for(i=0;i<strlen(result);i++){
printf("%c",result[i]);
}
return 0;
}
char *DES(char *data,char *key){
char static res[200];
strEnc(data,key,res);
return res;
}
4.编译
LoadRunner中引用dll文件
将编译后的dll文件拷贝到LoadRunner的脚本目录下,进行加载并进行测试(打开loadrunner日志)