从OpenSSL库中分离算法-MD5算法-小文件MD5计算

续上述博客

跳转到移植视频-blibili

<iframe allowfullscreen="true" data-mediaembed="bilibili" id="wXDEsbKp-1634515414322" src="https://player.bilibili.com/player.html?aid=208570859"></iframe>

C语言计算小文件MD5

修改后的md5test.cpp代码如下：

#include <iostream>
#include "md5/md5.h"
int main()
{
    FILE* Fp = nullptr;
    fopen_s(&Fp, "d:\\test.zip", "rb");
    if (Fp) {
        fseek(Fp, 0, SEEK_END);
        int FileSize = ftell(Fp);
        fseek(Fp, 0, SEEK_SET);
        unsigned char* Data = (unsigned char*)malloc(FileSize);
        memset(Data, 0, FileSize);
        fread(Data, 1, FileSize, Fp);
        unsigned char md[MD5_DIGEST_LENGTH] = { 0 };
        unsigned char* P = MD5(Data, FileSize, md);
        free(Data);
        for (int i = 0; i < MD5_DIGEST_LENGTH; i++) {
            printf("%02x-", *(md + i));
        }
        fclose(Fp);
    }
}

输出结果：

d0-3e-c4-cb-b5-ef-82-87-c5-a0-17-69-59-54-74-69-

使用md5校验软件计算的结果：

完全一致

欢迎大家关注、留言讨论、可分享源码

标签：Fp,OpenSSL,unsigned,char,算法,FileSize,Data,MD5
来源： https://blog.csdn.net/u010333084/article/details/120819391