X509SubjectKeyIdentifierExtension Konstruktor

Definisi

Ruang nama:

System.Security.Cryptography.X509Certificates

Rakitan:

System.Security.Cryptography.dll

Menginisialisasi instans baru kelas X509SubjectKeyIdentifierExtension.

Overload

X509SubjectKeyIdentifierExtension()	Menginisialisasi instans baru kelas X509SubjectKeyIdentifierExtension.
X509SubjectKeyIdentifierExtension(Byte[], Boolean)	Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan array byte dan nilai yang mengidentifikasi apakah ekstensi sangat penting.
X509SubjectKeyIdentifierExtension(ReadOnlySpan<Byte>, Boolean)	Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan rentang byte baca-saja dan nilai yang mengidentifikasi apakah ekstensi sangat penting.
X509SubjectKeyIdentifierExtension(AsnEncodedData, Boolean)	Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan data yang dikodekan dan nilai yang mengidentifikasi apakah ekstensi sangat penting.
X509SubjectKeyIdentifierExtension(PublicKey, Boolean)	Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan kunci publik dan nilai yang menunjukkan apakah ekstensi sangat penting.
X509SubjectKeyIdentifierExtension(String, Boolean)	Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan string dan nilai yang mengidentifikasi apakah ekstensi sangat penting.
X509SubjectKeyIdentifierExtension(PublicKey, X509SubjectKeyIdentifierHashAlgorithm, Boolean)	Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan kunci umum, pengidentifikasi algoritma hash, dan nilai yang menunjukkan apakah ekstensi sangat penting.

X509SubjectKeyIdentifierExtension()

Sumber:

X509SubjectKeyIdentifierExtension.cs

Menginisialisasi instans baru kelas X509SubjectKeyIdentifierExtension.

public:
 X509SubjectKeyIdentifierExtension();

public X509SubjectKeyIdentifierExtension ();

Public Sub New ()

Contoh

Contoh kode berikut menunjukkan cara membuka penyimpanan sertifikat pribadi pengguna dan menampilkan informasi tentang setiap sertifikat di penyimpanan. Contoh ini menggunakan X509SubjectKeyIdentifierExtension kelas untuk menampilkan informasi.

#using <System.dll>
#using <system.security.dll>

using namespace System;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::X509Certificates;
int main()
{
   try
   {
      X509Store^ store = gcnew X509Store( L"MY",StoreLocation::CurrentUser );
      store->Open( static_cast<OpenFlags>(OpenFlags::ReadOnly | OpenFlags::OpenExistingOnly) );
      X509Certificate2Collection^ collection = dynamic_cast<X509Certificate2Collection^>(store->Certificates);
      for ( int i = 0; i < collection->Count; i++ )
      {
         System::Collections::IEnumerator^ myEnum = collection[ i ]->Extensions->GetEnumerator();
         while ( myEnum->MoveNext() )
         {
            X509Extension^ extension = safe_cast<X509Extension^>(myEnum->Current);
            Console::WriteLine( L"{0}({1})", extension->Oid->FriendlyName, extension->Oid->Value );
            if ( extension->Oid->FriendlyName == L"Key Usage" )
            {
               X509KeyUsageExtension^ ext = dynamic_cast<X509KeyUsageExtension^>(extension);
               Console::WriteLine( ext->KeyUsages );
            }
            if ( extension->Oid->FriendlyName == L"Basic Constraints" )
            {
               X509BasicConstraintsExtension^ ext = dynamic_cast<X509BasicConstraintsExtension^>(extension);
               Console::WriteLine( ext->CertificateAuthority );
               Console::WriteLine( ext->HasPathLengthConstraint );
               Console::WriteLine( ext->PathLengthConstraint );
            }
            if ( extension->Oid->FriendlyName == L"Subject Key Identifier" )
            {
               X509SubjectKeyIdentifierExtension^ ext = dynamic_cast<X509SubjectKeyIdentifierExtension^>(extension);
               Console::WriteLine( ext->SubjectKeyIdentifier );
            }
            if ( extension->Oid->FriendlyName == L"Enhanced Key Usage" )
            {
               X509EnhancedKeyUsageExtension^ ext = dynamic_cast<X509EnhancedKeyUsageExtension^>(extension);
               OidCollection^ oids = ext->EnhancedKeyUsages;
               System::Collections::IEnumerator^ myEnum1 = oids->GetEnumerator();
               while ( myEnum1->MoveNext() )
               {
                  Oid^ oid = safe_cast<Oid^>(myEnum1->Current);
                  Console::WriteLine( L"{0}({1})", oid->FriendlyName, oid->Value );
               }
            }
         }

      }
      store->Close();
   }
   catch ( CryptographicException^ ) 
   {
      Console::WriteLine( L"Information could not be written out for this certificate." );
   }

}

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

public class CertSelect
{
    public static void Main()
    {
        try
        {
            X509Store store = new X509Store("MY", StoreLocation.CurrentUser);
            store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);

            X509Certificate2Collection collection = (X509Certificate2Collection)store.Certificates;
            for (int i = 0; i < collection.Count; i++)
            {
                foreach (X509Extension extension in collection[i].Extensions)
                {
                    Console.WriteLine(extension.Oid.FriendlyName + "(" + extension.Oid.Value + ")");

                    if (extension.Oid.FriendlyName == "Key Usage")
                    {
                        X509KeyUsageExtension ext = (X509KeyUsageExtension)extension;
                        Console.WriteLine(ext.KeyUsages);
                    }

                    if (extension.Oid.FriendlyName == "Basic Constraints")
                    {
                        X509BasicConstraintsExtension ext = (X509BasicConstraintsExtension)extension;
                        Console.WriteLine(ext.CertificateAuthority);
                        Console.WriteLine(ext.HasPathLengthConstraint);
                        Console.WriteLine(ext.PathLengthConstraint);
                    }

                    if (extension.Oid.FriendlyName == "Subject Key Identifier")
                    {
                        X509SubjectKeyIdentifierExtension ext = (X509SubjectKeyIdentifierExtension)extension;
                        Console.WriteLine(ext.SubjectKeyIdentifier);
                    }

                    if (extension.Oid.FriendlyName == "Enhanced Key Usage")
                    {
                        X509EnhancedKeyUsageExtension ext = (X509EnhancedKeyUsageExtension)extension;
                        OidCollection oids = ext.EnhancedKeyUsages;
                        foreach (Oid oid in oids)
                        {
                            Console.WriteLine(oid.FriendlyName + "(" + oid.Value + ")");
                        }
                    }
                }
            }
            store.Close();
        }
        catch (CryptographicException)
        {
            Console.WriteLine("Information could not be written out for this certificate.");
        }
    }
}

Imports System.Security.Cryptography
Imports System.Security.Cryptography.X509Certificates



Module CertSelect

    Sub Main()
        Try
            Dim store As New X509Store("MY", StoreLocation.CurrentUser)
            store.Open(OpenFlags.ReadOnly Or OpenFlags.OpenExistingOnly)

            Dim collection As X509Certificate2Collection = CType(store.Certificates, X509Certificate2Collection)
            For i As Integer = 0 To collection.Count - 1
                Dim extension As X509Extension
                For Each extension In collection(i).Extensions
                    Console.WriteLine(extension.Oid.FriendlyName + "(" + extension.Oid.Value + ")")


                    If extension.Oid.FriendlyName = "Key Usage" Then
                        Dim ext As X509KeyUsageExtension = CType(extension, X509KeyUsageExtension)
                        Console.WriteLine(ext.KeyUsages)
                    End If

                    If extension.Oid.FriendlyName = "Basic Constraints" Then
                        Dim ext As X509BasicConstraintsExtension = CType(extension, X509BasicConstraintsExtension)
                        Console.WriteLine(ext.CertificateAuthority)
                        Console.WriteLine(ext.HasPathLengthConstraint)
                        Console.WriteLine(ext.PathLengthConstraint)
                    End If

                    If extension.Oid.FriendlyName = "Subject Key Identifier" Then
                        Dim ext As X509SubjectKeyIdentifierExtension = CType(extension, X509SubjectKeyIdentifierExtension)
                        Console.WriteLine(ext.SubjectKeyIdentifier)
                    End If

                    If extension.Oid.FriendlyName = "Enhanced Key Usage" Then
                        Dim ext As X509EnhancedKeyUsageExtension = CType(extension, X509EnhancedKeyUsageExtension)
                        Dim oids As OidCollection = ext.EnhancedKeyUsages
                        Dim oid As Oid
                        For Each oid In oids
                            Console.WriteLine(oid.FriendlyName + "(" + oid.Value + ")")
                        Next oid
                    End If
                Next extension
            Next i
            store.Close()
        Catch
            Console.WriteLine("Information could not be written out for this certificate.")
        End Try

    End Sub
End Module

X509SubjectKeyIdentifierExtension(Byte[], Boolean)

Sumber:

X509SubjectKeyIdentifierExtension.cs

Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan array byte dan nilai yang mengidentifikasi apakah ekstensi sangat penting.

public:
 X509SubjectKeyIdentifierExtension(cli::array <System::Byte> ^ subjectKeyIdentifier, bool critical);

public X509SubjectKeyIdentifierExtension (byte[] subjectKeyIdentifier, bool critical);

new System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension : byte[] * bool -> System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension

Public Sub New (subjectKeyIdentifier As Byte(), critical As Boolean)

Parameter

subjectKeyIdentifier

Byte[]

Array byte yang mewakili data yang akan digunakan untuk membuat ekstensi.

critical

Boolean

true jika ekstensi sangat penting; jika tidak, false.

X509SubjectKeyIdentifierExtension(ReadOnlySpan<Byte>, Boolean)

Sumber:

X509SubjectKeyIdentifierExtension.cs

Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan rentang byte baca-saja dan nilai yang mengidentifikasi apakah ekstensi sangat penting.

public:
 X509SubjectKeyIdentifierExtension(ReadOnlySpan<System::Byte> subjectKeyIdentifier, bool critical);

public X509SubjectKeyIdentifierExtension (ReadOnlySpan<byte> subjectKeyIdentifier, bool critical);

new System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension : ReadOnlySpan<byte> * bool -> System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension

Public Sub New (subjectKeyIdentifier As ReadOnlySpan(Of Byte), critical As Boolean)

Parameter

subjectKeyIdentifier

ReadOnlySpan<Byte>

Rentang byte baca-saja yang mewakili data yang akan digunakan untuk membuat ekstensi.

critical

Boolean

true jika ekstensi sangat penting; jika tidak, false.

X509SubjectKeyIdentifierExtension(AsnEncodedData, Boolean)

Sumber:

X509SubjectKeyIdentifierExtension.cs

Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan data yang dikodekan dan nilai yang mengidentifikasi apakah ekstensi sangat penting.

public:
 X509SubjectKeyIdentifierExtension(System::Security::Cryptography::AsnEncodedData ^ encodedSubjectKeyIdentifier, bool critical);

public X509SubjectKeyIdentifierExtension (System.Security.Cryptography.AsnEncodedData encodedSubjectKeyIdentifier, bool critical);

new System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension : System.Security.Cryptography.AsnEncodedData * bool -> System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension

Public Sub New (encodedSubjectKeyIdentifier As AsnEncodedData, critical As Boolean)

Parameter

encodedSubjectKeyIdentifier

AsnEncodedData

Objek AsnEncodedData yang digunakan untuk membuat ekstensi.

critical

Boolean

true jika ekstensi sangat penting; jika tidak, false.

Keterangan

Gunakan konstruktor ini jika informasi untuk membuat ekstensi sudah ada dalam AsnEncodedData objek.

X509SubjectKeyIdentifierExtension(PublicKey, Boolean)

Sumber:

X509SubjectKeyIdentifierExtension.cs

Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan kunci publik dan nilai yang menunjukkan apakah ekstensi sangat penting.

public:
 X509SubjectKeyIdentifierExtension(System::Security::Cryptography::X509Certificates::PublicKey ^ key, bool critical);

public X509SubjectKeyIdentifierExtension (System.Security.Cryptography.X509Certificates.PublicKey key, bool critical);

new System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension : System.Security.Cryptography.X509Certificates.PublicKey * bool -> System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension

Public Sub New (key As PublicKey, critical As Boolean)

Parameter

key

PublicKey

Objek PublicKey untuk membuat pengidentifikasi kunci subjek (SKI) dari.

critical

Boolean

true jika ekstensi sangat penting; jika tidak, false.

X509SubjectKeyIdentifierExtension(String, Boolean)

Sumber:

X509SubjectKeyIdentifierExtension.cs

Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan string dan nilai yang mengidentifikasi apakah ekstensi sangat penting.

public:
 X509SubjectKeyIdentifierExtension(System::String ^ subjectKeyIdentifier, bool critical);

public X509SubjectKeyIdentifierExtension (string subjectKeyIdentifier, bool critical);

new System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension : string * bool -> System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension

Public Sub New (subjectKeyIdentifier As String, critical As Boolean)

Parameter

subjectKeyIdentifier

String

String, dikodekan dalam format heksadesimal, yang mewakili pengidentifikasi kunci subjek (SKI) untuk sertifikat.

critical

Boolean

true jika ekstensi sangat penting; jika tidak, false.

Keterangan

Pengidentifikasi kunci subjek (SKI) dapat digunakan untuk mengidentifikasi sertifikat dan sering digunakan saat bekerja dengan penandatanganan digital XML.

X509SubjectKeyIdentifierExtension(PublicKey, X509SubjectKeyIdentifierHashAlgorithm, Boolean)

Sumber:

X509SubjectKeyIdentifierExtension.cs

Menginisialisasi instans X509SubjectKeyIdentifierExtension baru kelas menggunakan kunci umum, pengidentifikasi algoritma hash, dan nilai yang menunjukkan apakah ekstensi sangat penting.

public:
 X509SubjectKeyIdentifierExtension(System::Security::Cryptography::X509Certificates::PublicKey ^ key, System::Security::Cryptography::X509Certificates::X509SubjectKeyIdentifierHashAlgorithm algorithm, bool critical);

public X509SubjectKeyIdentifierExtension (System.Security.Cryptography.X509Certificates.PublicKey key, System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierHashAlgorithm algorithm, bool critical);

new System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension : System.Security.Cryptography.X509Certificates.PublicKey * System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierHashAlgorithm * bool -> System.Security.Cryptography.X509Certificates.X509SubjectKeyIdentifierExtension

Public Sub New (key As PublicKey, algorithm As X509SubjectKeyIdentifierHashAlgorithm, critical As Boolean)

Parameter

key

PublicKey

Objek PublicKey untuk membuat pengidentifikasi kunci subjek (SKI) dari.

algorithm

X509SubjectKeyIdentifierHashAlgorithm

Salah X509SubjectKeyIdentifierHashAlgorithm satu nilai yang mengidentifikasi algoritma hash mana yang akan digunakan.

critical

Boolean

true jika ekstensi sangat penting; jika tidak, false.