X500DistinguishedName Klasse

Definition

public ref class X500DistinguishedName sealed : System::Security::Cryptography::AsnEncodedData

public sealed class X500DistinguishedName : System.Security.Cryptography.AsnEncodedData

type X500DistinguishedName = class
    inherit AsnEncodedData

Public NotInheritable Class X500DistinguishedName
Inherits AsnEncodedData

Vererbung

Object

AsnEncodedData

X500DistinguishedName

Beispiele

Das folgende Codebeispiel zeigt, wie die X500DistinguishedName Klasse verwendet wird.

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

class X500Sample
{
    static void Main()
    {
        try
        {
            X509Store store = new("MY", StoreLocation.CurrentUser);
            store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
            X509Certificate2Collection collection = store.Certificates;
            X509Certificate2Collection fcollection = collection.Find(
                X509FindType.FindByTimeValid,
                DateTime.Now, false
                );
            X509Certificate2Collection scollection = X509Certificate2UI.SelectFromCollection(
                fcollection,
                "Test Certificate Select",
                "Select a certificate from the following list to get information on that certificate",
                X509SelectionFlag.MultiSelection
                );
            Console.WriteLine($"Number of certificates: {scollection.Count}{Environment.NewLine}");
            foreach (X509Certificate2 x509 in scollection)
            {
                X500DistinguishedName dname = new(
                    x509.SubjectName.Name,
                    X500DistinguishedNameFlags.Reversed | X500DistinguishedNameFlags.UseSemicolons
                    );
                Console.WriteLine("X500DistinguishedName: {0}{1}", dname.Name, Environment.NewLine);
                x509.Reset();
            }
            store.Close();
        }
        catch (CryptographicException)
        {
            Console.WriteLine("Information could not be written out for this certificate.");
        }
    }
}

Imports System.Security.Cryptography.X509Certificates

Class X500Sample
    Shared s_msg As String
    Shared Sub Main()

        Try
            Dim store As New X509Store("MY", StoreLocation.CurrentUser)
            store.Open(OpenFlags.ReadOnly Or OpenFlags.OpenExistingOnly)
            Dim collection As X509Certificate2Collection = store.Certificates
            Dim fcollection As X509Certificate2Collection = collection.Find(X509FindType.FindByTimeValid, Date.Now, False)
            Dim scollection As X509Certificate2Collection = X509Certificate2UI.SelectFromCollection(
                fcollection,
                "Test Certificate Select",
                "Select a certificate from the following list to get information on that certificate",
                X509SelectionFlag.MultiSelection
                )
            s_msg = "Number of certificates: " & scollection.Count & Environment.NewLine
            Console.WriteLine(s_msg)
            Dim x509 As X509Certificate2
            For Each x509 In scollection
                Dim dname As New X500DistinguishedName(
                x509.SubjectName.Name,
                X500DistinguishedNameFlags.Reversed Or X500DistinguishedNameFlags.UseSemicolons
                )
                s_msg = "X500DistinguishedName: " & dname.Name & Environment.NewLine
                Console.WriteLine(s_msg)
                x509.Reset()
            Next x509
            store.Close()
        Catch e As Exception
            s_msg = "Error: Information could not be written out for this certificate."
            Console.WriteLine(s_msg)
        End Try
    End Sub
End Class

Hinweise

Diese Klasse ist wie eine Erweiterung der Eigenschaft oder IssuerName der SubjectName Person oder Entität, für die das Zertifikat ausgestellt wird. X.500 ist ein internationaler Standard für verteilte Verzeichnisdienste. Der Distinguished Name verwendet das folgende Format:

[X500:/C=CountryCode/O=Organization/OU=OrganizationUnit/CN=CommonName]

Die folgenden Feldlängenbeschränkungen gelten:

Die folgenden Richtlinien gelten:

• Feldwerte können Groß- oder Kleinbuchstaben sein.

• Trennzeichen sind Schrägstriche (/) und müssen vor dem ersten Wert und zwischen nachfolgenden Werten angezeigt werden.

• Auf Trennzeichen kann ein Leerzeichen folgen.

Es folgt ein Beispiel für einen korrekt formatierten Namen: [X500:/ C=US/ O=Microsoft/ OU=WGA/ CN=TedSt]