如何在C ++中计算文件md5? [英] How to calculate a the files md5 in c++?

问题描述

再次振作起来
如何计算文件md5并在VC ++中进行比较
香港专业教育学院搜索谷歌，但没有运气...
再次进行Tnx:)

Hellow Again
How to calculate the files md5 and compare it in VC++
Ive searched in google but no luck ...
Tnx Again :)

推荐答案

然后，您的搜索并不困难，对吗?

我尝试 使用您的主题行作为搜索词 ，然后立即来到这里:

You didn''t search too hard then, did you?

I tried using your subject line as a search term and got here straight away: Use Windows Crypto API to calculate a MD5 string.[^]

有一个比旋转完整加密货币更容易的选择；看看邮件摘要功能 [ ^ ]

There''s an easier alternative than spinning up the full crypto; have a look at the Message Digest functions[^]

typedef struct {
    ULONG i[2];
    ULONG buf[4];
    unsigned char in[64];
    unsigned char digest[16];
} MD5_CTX;

typedef void (_stdcall *MD5Final)(MD5_CTX* context);
typedef void (_stdcall *MD5Init)(MD5_CTX* context);
typedef void (_stdcall *MD5Update)(MD5_CTX* context,unsigned char* input,unsigned int inlen);

对这三个函数分别执行LoadLibrary("cryptdll.dll")，GetProcAddress()，根据需要多次调用MD5Init()，MD5Update()，然后依次调用MD5Final()和FreeLibrary()

Do a LoadLibrary("cryptdll.dll"), GetProcAddress() for each of the three functions, call MD5Init(), MD5Update() as many times required, then MD5Final(), and FreeLibrary()

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