X509Certificate.CreateFromCertFile(String) Método

Definición

Espacio de nombres:

System.Security.Cryptography.X509Certificates

Ensamblado:

System.Security.Cryptography.X509Certificates.dll

Ensamblado:

System.Security.Cryptography.dll

Ensamblado:

mscorlib.dll

Ensamblado:

netstandard.dll

Crea un certificado X.509v3 a partir del archivo firmado con el estándar PKCS7 especificado.

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

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

Parámetros

filename

String

Ruta de acceso al archivo firmado con el estándar PKCS7 a partir del que se va a crear el certificado X.509.

Devoluciones

X509Certificate

Certificado X.509 recién creado.

Atributos

UnsupportedOSPlatformAttribute

Excepciones

ArgumentException

El parámetro filename es null.

Ejemplos

En el ejemplo siguiente se crea un a X509Certificate partir de un archivo de certificación especificado.

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

Comentarios

ASN.1 DER es el único formato de certificado admitido por esta clase.

Nota

El archivo de certificado no está restringido a los archivos .cer. Se puede usar cualquier archivo firmado PKCS7, incluido un archivo .pfx firmado authenticode.