X509Certificate.CreateFromCertFile(String) Metode

Definisi

Ruang nama:

System.Security.Cryptography.X509Certificates

Rakitan:

System.Security.Cryptography.dll

Sumber:

X509Certificate.cs

Membuat sertifikat X.509v3 dari file bertanda tangan PKCS7 yang ditentukan.

public:
 static System::Security::Cryptography::X509Certificates::X509Certificate ^ CreateFromCertFile(System::String ^ filename);

[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]
public static System.Security.Cryptography.X509Certificates.X509Certificate CreateFromCertFile (string filename);

[<System.Runtime.Versioning.UnsupportedOSPlatform("browser")>]
static member CreateFromCertFile : string -> System.Security.Cryptography.X509Certificates.X509Certificate

Public Shared Function CreateFromCertFile (filename As String) As X509Certificate

Parameter

filename

String

Jalur file yang ditandatangani PKCS7 untuk membuat sertifikat X.509.

Mengembalikan

X509Certificate

Sertifikat X.509 yang baru dibuat.

Atribut

UnsupportedOSPlatformAttribute

Pengecualian

ArgumentException

Parameter filenamenull.

Contoh

Contoh berikut membuat X509Certificate dari file sertifikasi tertentu.

using namespace System;
using namespace System::Security::Cryptography::X509Certificates;
int 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 );
}

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

Keterangan

ASN.1 DER adalah satu-satunya format sertifikat yang didukung oleh kelas ini.

Nota

File sertifikat tidak dibatasi untuk .cer file. Setiap file yang ditandatangani PKCS7 dapat digunakan, termasuk file .pfx yang ditandatangani Authenticode.