X509Certificate.CreateFromCertFile(String) Метод

Определение

Внимание

Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.

Создает сертификат X.509v3 из указанного подписанного файла PKCS7.

public:
 static System::Security::Cryptography::X509Certificates::X509Certificate ^ CreateFromCertFile(System::String ^ filename);
[System.Obsolete("Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.", DiagnosticId="SYSLIB0057", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]
public static System.Security.Cryptography.X509Certificates.X509Certificate CreateFromCertFile(string filename);
public static System.Security.Cryptography.X509Certificates.X509Certificate CreateFromCertFile(string filename);
[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]
public static System.Security.Cryptography.X509Certificates.X509Certificate CreateFromCertFile(string filename);
[<System.Obsolete("Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.", DiagnosticId="SYSLIB0057", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
[<System.Runtime.Versioning.UnsupportedOSPlatform("browser")>]
static member CreateFromCertFile : string -> System.Security.Cryptography.X509Certificates.X509Certificate
static member CreateFromCertFile : string -> System.Security.Cryptography.X509Certificates.X509Certificate
[<System.Runtime.Versioning.UnsupportedOSPlatform("browser")>]
static member CreateFromCertFile : string -> System.Security.Cryptography.X509Certificates.X509Certificate
Public Shared Function CreateFromCertFile (filename As String) As X509Certificate

Параметры

filename
String

Путь к подписанному PKCS7-файлу, из которого создается сертификат X.509.

Возвращаемое значение

Созданный сертификат X.509.

Атрибуты

Исключения

Параметр filename имеет значение null.

Примеры

В следующем примере создается X509Certificate файл сертификации из указанного файла сертификации.

using System;
using System.Security.Cryptography.X509Certificates;

public class X509
{
    public static void Main()
    {
        // The path to the certificate.
        string Certificate =  "Certificate.cer";

        // Load the certificate into an X509Certificate object.
        X509Certificate cert = X509Certificate.CreateFromCertFile(Certificate);

        // Get the value.
        string resultsTrue = cert.ToString(true);

        // Display the value to the console.
        Console.WriteLine(resultsTrue);

        // Get the value.
        string resultsFalse = cert.ToString(false);

        // Display the value to the console.
        Console.WriteLine(resultsFalse);
    }
}
Imports System.Security.Cryptography.X509Certificates




Public Class X509
   
   
   Public Shared Sub Main()
      
      ' The path to the certificate.
      Dim Certificate As String = "Certificate.cer"
      
      ' Load the certificate into an X509Certificate object.
      Dim cert As X509Certificate = X509Certificate.CreateFromCertFile(Certificate)
      
      ' Get the value.
      Dim resultsTrue As String = cert.ToString(True)
      
      ' Display the value to the console.
      Console.WriteLine(resultsTrue)
      
      ' Get the value.
      Dim resultsFalse As String = cert.ToString(False)
      
      ' Display the value to the console.
      Console.WriteLine(resultsFalse)
   End Sub  
End Class

Комментарии

ASN.1 DER — это единственный формат сертификата, поддерживаемый этим классом.

Note

Файл сертификата не ограничен .cer файлами. Любой подписанный PKCS7-файл можно использовать, включая подписанный PFX-файл Authenticode.

Применяется к