X509SubjectKeyIdentifierExtension 构造函数

参考

定义

命名空间:: System.Security.Cryptography.X509Certificates

程序集:: System.Security.Cryptography.X509Certificates.dll

程序集:: System.Security.Cryptography.dll

程序集:: System.dll

程序集:: netstandard.dll

重要

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初始化 X509SubjectKeyIdentifierExtension 类的新实例。

重载

X509SubjectKeyIdentifierExtension()	初始化 X509SubjectKeyIdentifierExtension 类的新实例。
X509SubjectKeyIdentifierExtension(Byte[], Boolean)	使用一个字节数组和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。
X509SubjectKeyIdentifierExtension(ReadOnlySpan<Byte>, Boolean)	使用字节的一个只读范围和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。
X509SubjectKeyIdentifierExtension(AsnEncodedData, Boolean)	使用编码数据和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。
X509SubjectKeyIdentifierExtension(PublicKey, Boolean)	使用一个公钥和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。
X509SubjectKeyIdentifierExtension(String, Boolean)	使用一个字符串和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。
X509SubjectKeyIdentifierExtension(PublicKey, X509SubjectKeyIdentifierHashAlgorithm, Boolean)	使用一个公钥、一个哈希算法标识符和一个指示扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。

X509SubjectKeyIdentifierExtension()

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

初始化 X509SubjectKeyIdentifierExtension 类的新实例。

public:
 X509SubjectKeyIdentifierExtension();

public X509SubjectKeyIdentifierExtension ();

Public Sub New ()

示例

下面的代码示例演示如何打开用户的个人证书存储并显示有关存储中每个证书的信息。此示例使用 X509SubjectKeyIdentifierExtension 类来显示信息。

#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

适用于

X509SubjectKeyIdentifierExtension(Byte[], Boolean)

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

使用一个字节数组和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。

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)

参数

subjectKeyIdentifier: Byte[]

一个字节数组，表示要用来创建扩展的数据。

critical: Boolean

如果扩展是必不可少的，则为 true；否则为 false。

适用于

X509SubjectKeyIdentifierExtension(ReadOnlySpan<Byte>, Boolean)

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

使用字节的一个只读范围和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。

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)

参数

subjectKeyIdentifier: ReadOnlySpan<Byte>

字节的一个只读范围，表示要用来创建扩展的数据。

critical: Boolean

如果扩展是必不可少的，则为 true；否则为 false。

适用于

X509SubjectKeyIdentifierExtension(AsnEncodedData, Boolean)

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

使用编码数据和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。

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)

参数

encodedSubjectKeyIdentifier: AsnEncodedData

要用来创建扩展的 AsnEncodedData 对象。

critical: Boolean

如果扩展是必不可少的，则为 true；否则为 false。

注解

如果用于创建扩展的信息已在对象中 AsnEncodedData ，请使用此构造函数。

适用于

X509SubjectKeyIdentifierExtension(PublicKey, Boolean)

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

使用一个公钥和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。

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)

参数

key: PublicKey

一个 PublicKey 对象，将从其创建使用者密钥标识符 (SKI)。

critical: Boolean

如果扩展是必不可少的，则为 true；否则为 false。

适用于

X509SubjectKeyIdentifierExtension(String, Boolean)

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

使用一个字符串和一个标识扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。

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)

参数

subjectKeyIdentifier: String

一个以十六进制格式编码的字符串，表示证书的主题密钥标识符 (SKI)。

critical: Boolean

如果扩展是必不可少的，则为 true；否则为 false。

注解

使用者密钥标识符 (SKI) 可用于标识证书，并且经常在使用 XML 数字签名时使用。

适用于

X509SubjectKeyIdentifierExtension(PublicKey, X509SubjectKeyIdentifierHashAlgorithm, Boolean)

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

Source:: X509SubjectKeyIdentifierExtension.cs

使用一个公钥、一个哈希算法标识符和一个指示扩展是否重要的值初始化 X509SubjectKeyIdentifierExtension 类的新实例。

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)

参数

key: PublicKey

一个 PublicKey 对象，将从其创建使用者密钥标识符 (SKI)。

algorithm: X509SubjectKeyIdentifierHashAlgorithm

X509SubjectKeyIdentifierHashAlgorithm 值之一，标识要使用哪一个哈希算法。

critical: Boolean

如果扩展是必不可少的，则为 true；否则为 false。

适用于

通过

X509SubjectKeyIdentifierExtension 构造函数

定义

重载

X509SubjectKeyIdentifierExtension()

示例

适用于

X509SubjectKeyIdentifierExtension(Byte[], Boolean)

参数

适用于

X509SubjectKeyIdentifierExtension(ReadOnlySpan<Byte>, Boolean)

参数

适用于

X509SubjectKeyIdentifierExtension(AsnEncodedData, Boolean)

参数

注解

适用于

X509SubjectKeyIdentifierExtension(PublicKey, Boolean)

参数

适用于

X509SubjectKeyIdentifierExtension(String, Boolean)

参数

注解

适用于

X509SubjectKeyIdentifierExtension(PublicKey, X509SubjectKeyIdentifierHashAlgorithm, Boolean)

参数

适用于

其他资源