X509Certificate.Import Method (String)

This method uses a certificate file (such as a file with a .cer extension) that represents an X.509 certificate, and populates the X509Certificate object with the certificate that the file contains.

The following example loads an X.509 certificate from a file, calls the ToString method, and displays the results to the console.

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


class X509
{

    static void Main()
    {

        // The path to the certificate.
        string Certificate = "Certificate.cer";

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

        cert.Import(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);

    }

}

.NET Framework

.NET Framework Client Profile

• SecurityCriticalAttribute  

  requires full trust for the immediate caller. This class cannot be used by partially trusted or transparent code.

• InheritanceDemand  

  for full trust for inheritors. This member cannot be inherited by partially trusted code.

• FileIOPermission  

  for permission to read the file described by the fileName parameter. Security action: Demand. Associated enumeration: EnvironmentPermissionAccess.Read

• KeyContainerPermission  

  for permission to create a key container. Security action: Demand. Associated enumeration: KeyContainerPermissionFlags.Create

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference