Partilhar via


X509Certificate.CreateFromCertFile(String) Método

Definição

Cuidado

Loading certificate data through the constructor or Import is obsolete.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

Cria um certificado X.509v3 do arquivo assinado 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);
[System.Runtime.Versioning.UnsupportedOSPlatform("browser")]
[System.Obsolete("Loading certificate data through the constructor or Import is obsolete.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}")]
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
[<System.Runtime.Versioning.UnsupportedOSPlatform("browser")>]
[<System.Obsolete("Loading certificate data through the constructor or Import is obsolete.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}")>]
static member CreateFromCertFile : string -> System.Security.Cryptography.X509Certificates.X509Certificate
Public Shared Function CreateFromCertFile (filename As String) As X509Certificate

Parâmetros

filename
String

O caminho do arquivo assinado PKCS7 do qual criar o certificado X.509.

Retornos

O certificado X.509 recém-criado.

Atributos

Exceções

O parâmetro filename é null.

Exemplos

O exemplo a seguir cria um X509Certificate de um arquivo de certificação 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

Comentários

O ASN.1 DER é o único formato de certificado compatível com essa classe.

Nota

O arquivo de certificado não está restrito a arquivos de .cer. Qualquer arquivo assinado PKCS7 pode ser usado, incluindo um arquivo .pfx assinado pelo Authenticode.

Aplica-se a