# 数据转换-位串字节数组

0. 在openEuler(推荐)或Ubuntu或Windows(不推荐)中完成下面任务

1 参考《GMT 0009-2012 SM2密码算法使用规范》第6节“数据转换” 在utils.h和utils.c中完成位串与８位字节串的转换功能(10')：
int Bitstr2ByteArr(unsigned char * bs, unsigned char * ba，int *lba);
int ByteArr2Bitstr(unsigned char * ba, unsigned char * bs, int *lbs);

2 并写出测试代码测试上述函数(不能与下面代码一样)，比如(10'):

unsigned char bs [] = "1010010100011100";
int len;
Bitstr2ByteArr(bs, char * ba, &len);
//结果：ba = {0x5, 0x1C}; len=2

char ba[] = {0x5, 0x1C}
ByteArr2Bitstr(char * ba, char * bs);
//结果：bs= "1010010100011100"
3 提交代码（或代码链接）和运行结果
#include "sdf.h"
#include <stdio.h>
#include <stdlib.h>

int main(){

void ** pdh;
pdh = (void **) malloc(20);
int ret;

ret = SDF_OpenDevice(pdh);
if(ret != SDR_OK){
printf("error!");
} else {
printf("device opened!\n");
}

DEVICEINFO testdi;
ret = SDF_GetDeviceInfo(pdh, &testdi);
if(ret != SDR_OK){
printf("error!");
} else {
printf("Issuer Name: %s\n", testdi.IssuerName);
printf("Device Name: %s\n", testdi.DeviceName);
printf("Device Serial: %s\n", testdi.DeviceSerial);
printf("Device Version: %d\n", testdi.DeviceVersion);

}

char pRandom[10];

ret = SDF_GenerateRandom(*pdh,10, pRandom);
if(ret != SDR_OK){
printf("error!");
} else {
for(int i=0; i<10; i++)
printf("%d\n", pRandom[i]);
}

ret = SDF_CloseDevice(*pdh);

if(ret != SDR_OK){
printf("error!");
} else {
free(pdh);
printf("device closed!\n");
}

return 0;
}
#include "sdf.h"
#include <string.h>
#include <time.h>
#include <stdlib.h>

//********************************
//设备管理
//********************************

int SDF_OpenDevice(void ** phDeviceHandle){
return SDR_OK;
}

int SDF_CloseDevice(void *hDeviceHandle){

return SDR_OK;
}

int SDF_GetDeviceInfo( void * hSessionHandle, DEVICEINFO * pstDeviceInfo) {

DEVICEINFO di;
strcpy(di.IssuerName,"RocSDF");
strcpy(di.DeviceName,"SDFBESTI");
strcpy(di.DeviceSerial,"2021040001");
di.DeviceVersion = 1;
//...

//pstDevicelnfo = &di;
*pstDeviceInfo = di;

return SDR_OK;
}

static int myRandom(){
srand((unsigned)time(NULL));
return rand();
}

int SDF_GenerateRandom (void * hSessionHandle, unsigned int uiLength, unsigned char * pucRandom){

for(int i=0; i<uiLength; i++){
sleep(2);
*(pucRandom+i) = myRandom();
// pucRandom[i] = i;
}

return SDR_OK;
}
#include <stdio.h>
#include "util.h"

char HStr = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
char Hex2Char(int i){
return HStr[i];
}

posted @ 2022-06-02 14:12  ewdbdvdv  阅读(32)  评论(0编辑  收藏  举报