X500DistinguishedName クラス

定義

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

継承

Object

AsnEncodedData

X500DistinguishedName

例

X500DistinguishedName クラスを使用するコード例を次に示します。

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

注釈

このクラスは、 プロパティまたは IssuerName プロパティのSubjectName拡張機能に似ています。これは、証明書の発行先のユーザーまたはエンティティの名前です。 X.500 は、分散ディレクトリ サービスの国際標準です。 識別名は、次の形式を使用します。

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

次のフィールド長の制限が適用されます。

次のガイドラインが適用されます。

• フィールドの値は、大文字または小文字にすることができます。

• 区切り記号はスラッシュ (/) であり、最初の値の前と後続の値の間に表示する必要があります。

• 区切り記号の後にスペースを付けることができます。

正しく書式設定された名前の例を次に示します。 [X500:/ C=US/ O=Microsoft/ OU=WGA/ CN=TedSt]

コンストラクター

プロパティ

メソッド

適用対象