c++ Visual Studio：从可执行文件获取所有证书颁发者详细信息

mrphzbgm  于 2024-01-09  发布在  其他
关注(0)|答案(2)|浏览(162)

我希望能够从Windows资源管理器中获取所有发行商数据，如下所示：

我已经能够从https://learn.microsoft.com/en-us/windows/win32/api/wincrypt/nf-wincrypt-certgetnamestringw获得CN，但我不知道它是关于那个针对CN的调用的（如果我知道，我可能能够弄清楚如何获得其他所有内容）。我试过用谷歌搜索“API wintrust issuer CommonName Organization”和“wincrypt organization commonname”之类的东西，但就像API对所有其他发行者数据洗手不干一样。

c++

2条答案

按热度按时间
iyfamqjs

iyfamqjs1#

您只需要使用CertNameToStr并设置&(pCertContext->pCertInfo->Issuer)参数：

  1. CertNameToStr(
  2.             pCertContext->dwCertEncodingType,
  3.             &(pCertContext->pCertInfo->Issuer),
  4.             CERT_X500_NAME_STR,
  5.             pszString,
  6.             cbSize);

字符串
我修改了official sample供您参考：

  1. #pragma comment(lib, "crypt32.lib")
  2. #include <stdio.h>
  3. #include <tchar.h>
  4. #include <windows.h>
  5. #include <Wincrypt.h>
  7. #define MY_ENCODING_TYPE (PKCS_7_ASN_ENCODING | X509_ASN_ENCODING)
  8. #define MY_STRING_TYPE (CERT_OID_NAME_STR)
  9. void MyHandleError(LPTSTR);
  11. void main(void)
  12. {
  13.     HCERTSTORE hCertStore;
  14.     PCCERT_CONTEXT pCertContext;
  15.     if (!(hCertStore = CertOpenStore(
  16.         CERT_STORE_PROV_SYSTEM,
  17.         MY_ENCODING_TYPE,
  18.         NULL,
  19.         CERT_SYSTEM_STORE_CURRENT_USER,
  20.         L"MY")))
  21.     {
  22.         MyHandleError(TEXT("The MY system store did not open."));
  23.     }
  24.     pCertContext = NULL;
  25.     while (pCertContext = CertEnumCertificatesInStore(
  26.         hCertStore,
  27.         pCertContext))
  28.     {
  29.         LPTSTR pszString;
  30.         LPTSTR pszName;
  31.         DWORD cbSize;
  32.         CERT_BLOB blobEncodedName;
  33.         if (!(cbSize = CertGetNameString(
  34.             pCertContext,
  35.             CERT_NAME_SIMPLE_DISPLAY_TYPE,
  36.             0,
  37.             NULL,
  38.             NULL,
  39.             0)))
  40.         {
  41.             MyHandleError(TEXT("CertGetName 1 failed."));
  42.         }
  44.         if (!(pszName = (LPTSTR)malloc(cbSize * sizeof(TCHAR))))
  45.         {
  46.             MyHandleError(TEXT("Memory allocation failed."));
  47.         }
  49.         if (CertGetNameString(
  50.             pCertContext,
  51.             CERT_NAME_SIMPLE_DISPLAY_TYPE,
  52.             0,
  53.             NULL,
  54.             pszName,
  55.             cbSize))
  57.         {
  58.             _tprintf(TEXT("\nSubject -> %s.\n"), pszName);
  59.             free(pszName);
  60.         }
  61.         else
  62.         {
  63.             MyHandleError(TEXT("CertGetName failed."));
  64.         }
  65.         if (!(cbSize = CertGetNameString(
  66.             pCertContext,
  67.             CERT_NAME_SIMPLE_DISPLAY_TYPE,
  68.             CERT_NAME_ISSUER_FLAG,
  69.             NULL,
  70.             NULL,
  71.             0)))
  72.         {
  73.             MyHandleError(TEXT("CertGetName 1 failed."));
  74.         }
  76.         if (!(pszName = (LPTSTR)malloc(cbSize * sizeof(TCHAR))))
  77.         {
  78.             MyHandleError(TEXT("Memory allocation failed."));
  79.         }
  81.         if (CertGetNameString(
  82.             pCertContext,
  83.             CERT_NAME_SIMPLE_DISPLAY_TYPE,
  84.             CERT_NAME_ISSUER_FLAG,
  85.             NULL,
  86.             pszName,
  87.             cbSize))
  88.         {
  89.             _tprintf(TEXT("Issuer  -> %s.\n"), pszName);
  90.             free(pszName);
  91.         }
  92.         else
  93.         {
  94.             MyHandleError(TEXT("CertGetName failed."));
  95.         }
  96.         cbSize = CertNameToStr(
  97.             pCertContext->dwCertEncodingType,
  98.             &(pCertContext->pCertInfo->Subject),
  99.             MY_STRING_TYPE,
  100.             NULL,
  101.             0);
  102.         if (1 == cbSize)
  103.         {
  104.             MyHandleError(TEXT("Subject name is an empty string."));
  105.         }
  106.         if (!(pszString = (LPTSTR)malloc(cbSize * sizeof(TCHAR))))
  107.         {
  108.             MyHandleError(TEXT("Memory allocation failed."));
  109.         }
  110.         cbSize = CertNameToStr(
  111.             pCertContext->dwCertEncodingType,
  112.             &(pCertContext->pCertInfo->Issuer),
  113.             CERT_X500_NAME_STR,
  114.             pszString,
  115.             cbSize);
  116.         if (1 == cbSize)
  117.         {
  118.             MyHandleError(TEXT("Issuer name is an empty string."));
  119.         }
  120.         else
  121.         {
  122.             printf("Issuer String = %ls\n", pszString); //what you want
  123.         }
  125.         if (!(CertStrToName(
  126.             MY_ENCODING_TYPE,
  127.             pszString,
  128.             MY_STRING_TYPE,
  129.             NULL,
  130.             NULL,        // NULL to get the number of bytes 
  131.                             // needed for the buffer.          
  132.             &cbSize,     // Pointer to a DWORD to hold the 
  133.                             // number of bytes needed for the 
  134.                             // buffer
  135.             NULL)))     // Optional address of a pointer to
  136.                             // old the location for an error in the 
  137.                             // input string.
  138.         {
  139.             MyHandleError(
  140.                 TEXT("Could not get the length of the BLOB."));
  141.         }
  142.         if (!(blobEncodedName.pbData = (LPBYTE)malloc(cbSize)))
  143.         {
  144.             MyHandleError(
  145.                 TEXT("Memory Allocation for the BLOB failed."));
  146.         }
  147.         blobEncodedName.cbData = cbSize;
  149.         if (CertStrToName(
  150.             MY_ENCODING_TYPE,
  151.             pszString,
  152.             MY_STRING_TYPE,
  153.             NULL,
  154.             blobEncodedName.pbData,
  155.             &blobEncodedName.cbData,
  156.             NULL))
  157.         {
  158.             _tprintf(TEXT("CertStrToName created the BLOB.\n"));
  159.         }
  160.         else
  161.         {
  162.             MyHandleError(TEXT("Could not create the BLOB."));
  163.         }
  164.         free(blobEncodedName.pbData);
  165.         free(pszString);
  166.     }
  168.     _tprintf(
  169.         TEXT("\nThere are no more certificates in the store. \n"));
  170.     if (CertCloseStore(
  171.         hCertStore,
  172.         CERT_CLOSE_STORE_CHECK_FLAG))
  173.     {
  174.         _tprintf(TEXT("The store is closed. ")
  175.             TEXT("All certificates are released.\n"));
  176.     }
  177.     else
  178.     {
  179.         _tprintf(TEXT("The store was closed, ")
  180.             TEXT("but certificates still in use.\n"));
  181.     }
  182.     _tprintf(TEXT("This demonstration program ran to completion ")
  183.         TEXT("without error.\n"));
  184. } 
  186. void MyHandleError(LPTSTR psz)
  187. {
  188.     _ftprintf(stderr,
  189.         TEXT("An error occurred in running the program. \n"));
  190.     _ftprintf(stderr, TEXT("%s\n"), psz);
  191.     _ftprintf(stderr, TEXT("Error number %x.\n"), GetLastError());
  192.     _ftprintf(stderr, TEXT("Program terminating. \n"));
  193.     exit(1);
  194. }

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lrpiutwd

lrpiutwd2#

我使用 CertGetNameStringW

  1. std::wstring subjectString(PCCERT_CONTEXT pCertContext) const
  2. {
  3.     DWORD dwStrType = CERT_X500_NAME_STR;
  5.     // Ensure we have a valid certificate context
  6.     if (!pCertContext) {
  7.         return L"";
  8.     }
  10.     // Get the size needed for the subject's name
  11.     DWORD dwSubjectNameStrSize = CertGetNameStringW(
  12.         pCertContext,
  13.         CERT_NAME_RDN_TYPE,
  14.         0,
  15.         &dwStrType,
  16.         NULL,
  17.         0
  18.     );
  20.     if (dwSubjectNameStrSize > 0) {
  21.         // Allocate memory for the subject's name
  22.         std::wstring subjectName(dwSubjectNameStrSize-1, L'\0');
  23.         
  24.         // Get the subject's name
  25.         if (CertGetNameStringW(
  26.             pCertContext,
  27.             CERT_NAME_RDN_TYPE,
  28.             0,
  29.             &dwStrType,
  30.             subjectName.data(),
  31.             dwSubjectNameStrSize
  32.         ) <= 0) {
  34.             throw win32error("Extracting subject from certificate");
  35.         }
  37.         return subjectName;
  38.     }
  40.     return L"";
  41. }

字符串

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