首页 > 专利信息

验证微软数字签名

有的朋友问李马July的数字签名验证是如何做的，所以李马把July中的这段代码共享如下，在Win2K sp4/WinXP sp2上调试通过。

BOOL CheckFileTrust( LPCWSTR lpFileName )

{

BOOL bRet = FALSE;

WINTRUST_DATA wd = { 0 };

WINTRUST_FILE_INFO wfi = { 0 };

WINTRUST_CATALOG_INFO wci = { 0 };

CATALOG_INFO ci = { 0 };

HCATADMIN hCatAdmin = NULL;

if ( !CryptCATAdminAcquireContext( &hCatAdmin, NULL, 0 ) )

{

return FALSE;

}

HANDLE hFile = CreateFileW( lpFileName, GENERIC_READ, FILE_SHARE_READ,

NULL, OPEN_EXISTING, 0, NULL );

if ( INVALID_HANDLE_VALUE == hFile )

{

CryptCATAdminReleaseContext( hCatAdmin, 0 );

return FALSE;

}

DWORD dwCnt = 100;

BYTE byHash[100];

CryptCATAdminCalcHashFromFileHandle( hFile, &dwCnt, byHash, 0 );

CloseHandle( hFile );

LPWSTR pszMemberTag = new WCHAR[dwCnt * 2 + 1];

for ( DWORD dw = 0; dw < dwCnt; ++dw )

{

wsprintfW( &pszMemberTag[dw * 2], L"%02X", byHash[dw] );

}

HCATINFO hCatInfo = CryptCATAdminEnumCatalogFromHash( hCatAdmin,

byHash, dwCnt, 0, NULL );

if ( NULL == hCatInfo )

{

wfi.cbStruct = sizeof( WINTRUST_FILE_INFO );

wfi.pcwszFilePath = lpFileName;

wfi.hFile = NULL;

wfi.pgKnownSubject = NULL;

wd.cbStruct = sizeof( WINTRUST_DATA );

wd.dwUnionChoice = WTD_CHOICE_FILE;

wd.pFile = &wfi;

wd.dwUIChoice = WTD_UI_NONE;

wd.fdwRevocationChecks = WTD_REVOKE_NONE;

wd.dwStateAction = WTD_STATEACTION_IGNORE;

wd.dwProvFlags = WTD_SAFER_FLAG;

wd.hWVTStateData = NULL;

wd.pwszURLReference = NULL;

}

else

{

CryptCATCatalogInfoFromContext( hCatInfo, &ci, 0 );

msinfo

wci.cbStruct = sizeof( WINTRUST_CATALOG_INFO );

wci.pcwszCatalogFilePath = ci.wszCatalogFile;

wci.pcwszMemberFilePath = lpFileName;

wci.pcwszMemberTag = pszMemberTag;

wd.cbStruct = sizeof( WINTRUST_DATA );

wd.dwUnionChoice = WTD_CHOICE_CATALOG;

wd.pCatalog = &wci;

wd.dwUIChoice = WTD_UI_NONE;

wd.fdwRevocationChecks = WTD_STATEACTION_VERIFY;

wd.dwProvFlags = 0;

wd.hWVTStateData = NULL;

wd.pwszURLReference = NULL;

}

GUID action = WINTRUST_ACTION_GENERIC_VERIFY_V2;

HRESULT hr = WinVerifyTrust( NULL, &action, &wd );

bRet = SUCCEEDED( hr );

if ( NULL != hCatInfo )

{

CryptCATAdminReleaseContext( hCatInfo, 0 );

}

CryptCATAdminReleaseCatalogContext( hCatAdmin, hCatInfo, 0 );

delete[] pszMemberTag;

return bRet;

}

这段代码是在一个老外的论坛上不经意搜索到的，一个貌似德国人（因为他的注释

不是英文写的，德国亦仅猜测尔，西班牙、葡萄牙、法兰西、俄罗斯亦都有可能）写的Delphi代码，其中使用了WinTrust.dll中的导出函数。使用VS2005的朋友们可以包含WinTrust.h、SoftPub.h和Mscat.h，并添加导入库WinTrust.lib；使用VC6的朋友们可以参考MSDN上的函数及结构体声明，并用

函数指针进行调用。

本文发布于:2024-09-22 08:31:13，感谢您对本站的认可！

本文链接：https://www.17tex.com/tex/2/379572.html

上一篇：UTMS RAU流程学习整理

下一篇：(完整版)(国家电网)电动汽车充电站充电设施CAN总线通讯规范

标签：使用函数朋友代码

留言与评论（共有 0 条评论）