求32位MD5加密类

[zy2015036]

我需要一个MD5加密字符串的类.
谢谢了.

[jingzhongrong]

CryptoAPI：

#include <stdlib.h>

#include <iostream>

#include <windows.h>

#include <tchar.h>

#include <WinCrypt.h>

 

using namespace std;

 

// 计算Hash，成功返回，失败返回GetLastError()

//   CONST BYTE *pbData, // 输入数据

//   DWORD dwDataLen,    // 输入数据字节长度

//   ALG_ID algId        // Hash 算法, 详见MSDN:CryptCreateHash

//   LPTSTR pszHash,     // 输出进制Hash字符串，MD5长度为+1, SHA长度为+1

// 

DWORD GetHash(CONST BYTE *pbData, DWORD dwDataLen, ALG_ID algId, LPTSTR pszHash)

{

    DWORD dwReturn = 0;

    HCRYPTPROV hProv;

    if (!CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))

       return (dwReturn = GetLastError());

 

    HCRYPTHASH hHash;

 

    if(!CryptCreateHash(hProv, algId, 0, 0, &hHash)) 

    {

       dwReturn = GetLastError();

       CryptReleaseContext(hProv, 0);

       return dwReturn;

    }

 

    if(!CryptHashData(hHash, pbData, dwDataLen, 0))

    {

       dwReturn = GetLastError();

       CryptDestroyHash(hHash);

       CryptReleaseContext(hProv, 0);

       return dwReturn;

    }

 

    DWORD dwSize;

    DWORD dwLen = sizeof(dwSize);

    CryptGetHashParam(hHash, HP_HASHSIZE, (BYTE*)(&dwSize), &dwLen, 0);

 

    BYTE* pHash = new BYTE[dwSize];

    dwLen = dwSize;

    CryptGetHashParam(hHash, HP_HASHVAL, pHash, &dwLen, 0);

 

    lstrcpy(pszHash, _T(""));

    TCHAR szTemp[3];

    for (DWORD i = 0; i < dwLen; ++i)

    {

       wsprintf(szTemp, _T("%02X"), pHash[i]);

       lstrcat(pszHash, szTemp);

    }

    delete [] pHash;

 

    CryptDestroyHash(hHash);

    CryptReleaseContext(hProv, 0);

    return dwReturn;

}

 

int HashTest()

{

    char szStr[20] = {0};

    TCHAR szHash[100] = {0};

 

    strcpy(szStr,"MD5");

    GetHash((BYTE*)szStr, strlen(szStr), CALG_MD5,szHash);

    MessageBox(NULL, szHash, L"MD5", MB_OK);

}

 

void main()

{

    HashTest();

    getchar();

}

[zy2015036]

[Quote=引用 1 楼 jingzhongrong 的回复:]
CryptoAPI：


C/C++ code
#include <stdlib.h>

#include <iostream>

#include <windows.h>

#include <tchar.h>

#include <WinCrypt.h>



using namespace std;



// 计算Hash，成功返回，失败返回Ge……
[/Quote]
请问一下,这个是咋用的?我建立了控制台应用程序无法使用.

d:\vc++projects\ceshi\ceshi.cpp(29) : error C2061: syntax error : identifier 'ALG_ID'
d:\vc++projects\ceshi\ceshi.cpp(35) : error C2065: 'HCRYPTPROV' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(35) : error C2146: syntax error : missing ';' before identifier 'hProv'
d:\vc++projects\ceshi\ceshi.cpp(35) : error C2065: 'hProv' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(37) : error C2065: 'CryptAcquireContext' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(37) : error C2065: 'PROV_RSA_FULL' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(37) : error C2065: 'CRYPT_VERIFYCONTEXT' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(43) : error C2065: 'HCRYPTHASH' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(43) : error C2146: syntax error : missing ';' before identifier 'hHash'
d:\vc++projects\ceshi\ceshi.cpp(43) : error C2065: 'hHash' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(47) : error C2065: 'CryptCreateHash' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(47) : error C2065: 'algId' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(53) : error C2065: 'CryptReleaseContext' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(61) : error C2065: 'CryptHashData' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(67) : error C2065: 'CryptDestroyHash' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(81) : error C2065: 'CryptGetHashParam' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(81) : error C2065: 'HP_HASHSIZE' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(89) : error C2065: 'HP_HASHVAL' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(93) : error C2065: 'pszHash' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(133) : error C2065: 'CALG_MD5' : undeclared identifier
d:\vc++projects\ceshi\ceshi.cpp(135) : error C2664: 'MessageBoxA' : cannot convert parameter 3 from 'unsigned short [4]' to 'const char *'
        Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe.

[jingzhongrong]

头文件有添加吗？