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Exemple de programme C : Inscription de magasins de certificats physiques et système

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Les magasins physiques peuvent être des membres plus ou moins permanents d’un magasin système. Lorsqu’un magasin physique est membre d’un magasin système, les opérations sur le magasin système, telles que la recherche d’un certificat, sont effectuées dans tous les magasins physiques inscrits en tant que membres du magasin système. Un magasin physique peut être supprimé de l’appartenance à un magasin système à l’aide d’une fonction de désinscription.

Cet exemple montre les tâches et fonctions CryptoAPI suivantes :

Cet exemple illustre également la création et la suppression de magasins système.

// This example uses CertRegisterSystemStore.
#pragma comment(lib, "crypt32.lib")

// Copyright (C) Microsoft.  All rights reserved.
#include <stdio.h>
#include <windows.h>
#include <Wincrypt.h>
#define MY_ENCODING_TYPE  (PKCS_7_ASN_ENCODING | X509_ASN_ENCODING)
void MyHandleError(char *s);

void main()
{


// Declare and initialize variables.

HCERTSTORE hSystemStore;
DWORD dwFlags= CERT_SYSTEM_STORE_CURRENT_USER;
LPCWSTR pvSystemName= L"NEWSTORE";  // For this setting of 
                                    // dwFlags, the store name may 
                                    // be prefixed with a user name.
CERT_PHYSICAL_STORE_INFO PhysicalStoreInfo;
BYTE fResponse  = 'n';

if(CertRegisterSystemStore(
    pvSystemName,
    dwFlags,
    NULL,
    NULL))
  printf("System store %S is registered. \n",pvSystemName);
else
  printf("The system store did not register. \n");


// Open the NEWSTORE as a system store.

if(hSystemStore = CertOpenStore(
   CERT_STORE_PROV_SYSTEM,   // the store provider type
   0,                        // the encoding type is not needed
   NULL,                     // use the default HCRYPTPROV
   CERT_SYSTEM_STORE_CURRENT_USER,
                             // set the store location in a registry
                             // location
   pvSystemName ))           // the store name as a Unicode string
{
     printf("The new store has been opened as a system store.\n");
}
else
{
     printf("The new store was not opened as a system store.\n");
}
if(hSystemStore)
{
    if(CertCloseStore(hSystemStore,0))
    {
        printf("The system store has been closed.\n");
    }
    else
    {
        printf("The system store could not be closed.\n");
    }
}
else
{
   printf("The system store did not need to be closed.\n");
}


// Initialize PhysicalStoreInfo.

PhysicalStoreInfo.cbSize=sizeof(CERT_PHYSICAL_STORE_INFO);
PhysicalStoreInfo.pszOpenStoreProvider=(LPSTR)
    CERT_STORE_PROV_FILENAME;
PhysicalStoreInfo.dwFlags=CERT_PHYSICAL_STORE_ADD_ENABLE_FLAG;


// Replace the path below with one that is appropriate for you.

PhysicalStoreInfo.OpenParameters.pbData = 
    (BYTE *) L"C:\\temp\\mystore";
PhysicalStoreInfo.OpenParameters.cbData = 
    (wcslen((LPWSTR) PhysicalStoreInfo.OpenParameters.pbData) + 1) * 
    sizeof(WCHAR);

PhysicalStoreInfo.dwPriority=1;
PhysicalStoreInfo.dwOpenEncodingType=MY_ENCODING_TYPE;


// Register the physical store.

if(CertRegisterPhysicalStore(
      L"NEWSTORE",
      dwFlags,
      L"TESTOR.STO",
      &PhysicalStoreInfo,
      NULL
      ))
{
       printf("Physical store is registered. \n");
}
else
{
       printf("The physical store was not registered.\n");
}  


//  Next, unregister the store.

printf("Would you like to unregister the %S store? (y/n) "
       ,pvSystemName);
scanf_s("%c",&fResponse);

if(fResponse=='y')
{
   if(CertUnregisterSystemStore(
     pvSystemName,
     dwFlags))
   {
      printf("System store %S has been unregistered.\n"
          ,pvSystemName);
   }
   else
   {
      printf("The system store was not unregistered.\n");
   }
}
}  // end main


//  This example uses the function MyHandleError, a simple error
//  handling function, to print an error message to  
//  the standard error (stderr) file and exit the program. 
//  For most applications, replace this function with one 
//  that does more extensive error reporting.

void MyHandleError(char *s)
{
    fprintf(stderr,"An error occurred in running the program. \n");
    fprintf(stderr,"%s\n",s);
    fprintf(stderr, "Error number %x.\n", GetLastError());
    fprintf(stderr, "Program terminating. \n");
    exit(1);
} // end of MyHandleError