X509Extension Konstruktory
Ważne
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Inicjuje nowe wystąpienie klasy X509Extension.
| X509Extension() |
Inicjuje nowe wystąpienie klasy X509Extension. |
| X509Extension(AsnEncodedData, Boolean) |
Inicjuje nowe wystąpienie klasy X509Extension. |
| X509Extension(Oid, Byte[], Boolean) |
Inicjuje nowe wystąpienie klasy X509Extension. |
| X509Extension(Oid, ReadOnlySpan<Byte>, Boolean) |
Inicjuje nowe wystąpienie klasy X509Extension. |
| X509Extension(String, Byte[], Boolean) |
Inicjuje nowe wystąpienie klasy X509Extension. |
| X509Extension(String, ReadOnlySpan<Byte>, Boolean) |
Inicjuje nowe wystąpienie klasy X509Extension. |
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
Inicjuje nowe wystąpienie klasy X509Extension.
protected:
X509Extension();C#
protected X509Extension();Protected Sub New ()Przykłady
W poniższym przykładzie X509Extension kodu pokazano użycie klasy .
#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." );
}
}
C#
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
Uwagi
Ten konstruktor tworzy pusty X509Extension obiekt, w przeciwieństwie do innych konstruktorów dla tej klasy, które używają informacji o certyfikacie z tablicy bajtów, wskaźnika lub pliku certyfikatu do utworzenia obiektu.
Dotyczy
.NET 10 i inne wersje
| Produkt | Wersje |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.3, 1.4, 1.6, 2.0, 2.1 |
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
Inicjuje nowe wystąpienie klasy X509Extension.
public:
X509Extension(System::Security::Cryptography::AsnEncodedData ^ encodedExtension, bool critical);C#
public X509Extension(System.Security.Cryptography.AsnEncodedData encodedExtension, bool critical);new System.Security.Cryptography.X509Certificates.X509Extension : System.Security.Cryptography.AsnEncodedData * bool -> System.Security.Cryptography.X509Certificates.X509ExtensionPublic Sub New (encodedExtension As AsnEncodedData, critical As Boolean)Parametry
- encodedExtension
- AsnEncodedData
Zakodowane dane do użycia w celu utworzenia rozszerzenia.
- critical
- Boolean
true jeśli rozszerzenie ma krytyczne znaczenie; w przeciwnym razie false.
Przykłady
W poniższym przykładzie X509Extension kodu pokazano użycie klasy .
#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." );
}
}
C#
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
Uwagi
Użyj tego konstruktora, jeśli informacje do utworzenia rozszerzenia są już w AsnEncodedData obiekcie.
Dotyczy
.NET 10 i inne wersje
| Produkt | Wersje |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.3, 1.4, 1.6, 2.0, 2.1 |
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
Inicjuje nowe wystąpienie klasy X509Extension.
public:
X509Extension(System::Security::Cryptography::Oid ^ oid, cli::array <System::Byte> ^ rawData, bool critical);C#
public X509Extension(System.Security.Cryptography.Oid oid, byte[] rawData, bool critical);new System.Security.Cryptography.X509Certificates.X509Extension : System.Security.Cryptography.Oid * byte[] * bool -> System.Security.Cryptography.X509Certificates.X509ExtensionPublic Sub New (oid As Oid, rawData As Byte(), critical As Boolean)Parametry
- oid
- Oid
Identyfikator obiektu używany do identyfikowania rozszerzenia.
- rawData
- Byte[]
Zakodowane dane używane do tworzenia rozszerzenia.
- critical
- Boolean
true jeśli rozszerzenie ma krytyczne znaczenie; w przeciwnym razie false.
Wyjątki
oid to null.
oid jest pustym ciągiem ("").
Przykłady
W poniższym przykładzie X509Extension kodu pokazano użycie klasy .
#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." );
}
}
C#
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
Uwagi
Ten konstruktor używa informacji z parametru, oid aby podać identyfikator obiektu dla rozszerzenia.
Dotyczy
.NET 10 i inne wersje
| Produkt | Wersje |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.3, 1.4, 1.6, 2.0, 2.1 |
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
Inicjuje nowe wystąpienie klasy X509Extension.
public:
X509Extension(System::Security::Cryptography::Oid ^ oid, ReadOnlySpan<System::Byte> rawData, bool critical);C#
public X509Extension(System.Security.Cryptography.Oid oid, ReadOnlySpan<byte> rawData, bool critical);new System.Security.Cryptography.X509Certificates.X509Extension : System.Security.Cryptography.Oid * ReadOnlySpan<byte> * bool -> System.Security.Cryptography.X509Certificates.X509ExtensionPublic Sub New (oid As Oid, rawData As ReadOnlySpan(Of Byte), critical As Boolean)Parametry
- oid
- Oid
Identyfikator obiektu używany do identyfikowania rozszerzenia.
- rawData
- ReadOnlySpan<Byte>
Zakodowane dane używane do tworzenia rozszerzenia.
- critical
- Boolean
true jeśli rozszerzenie ma krytyczne znaczenie; w przeciwnym razie , false.
Dotyczy
.NET 10 i inne wersje
| Produkt | Wersje |
|---|---|
| .NET | 5, 6, 7, 8, 9, 10 |
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
Inicjuje nowe wystąpienie klasy X509Extension.
public:
X509Extension(System::String ^ oid, cli::array <System::Byte> ^ rawData, bool critical);C#
public X509Extension(string oid, byte[] rawData, bool critical);new System.Security.Cryptography.X509Certificates.X509Extension : string * byte[] * bool -> System.Security.Cryptography.X509Certificates.X509ExtensionPublic Sub New (oid As String, rawData As Byte(), critical As Boolean)Parametry
- oid
- String
Ciąg reprezentujący identyfikator obiektu.
- rawData
- Byte[]
Zakodowane dane używane do tworzenia rozszerzenia.
- critical
- Boolean
true jeśli rozszerzenie ma krytyczne znaczenie; w przeciwnym razie false.
Przykłady
W poniższym przykładzie X509Extension kodu pokazano użycie klasy .
#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." );
}
}
C#
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
Uwagi
Ten konstruktor używa informacji z parametru, oid aby podać identyfikator obiektu dla rozszerzenia.
Dotyczy
.NET 10 i inne wersje
| Produkt | Wersje |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.3, 1.4, 1.6, 2.0, 2.1 |
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
- Źródło:
- X509Extension.cs
Inicjuje nowe wystąpienie klasy X509Extension.
public:
X509Extension(System::String ^ oid, ReadOnlySpan<System::Byte> rawData, bool critical);C#
public X509Extension(string oid, ReadOnlySpan<byte> rawData, bool critical);new System.Security.Cryptography.X509Certificates.X509Extension : string * ReadOnlySpan<byte> * bool -> System.Security.Cryptography.X509Certificates.X509ExtensionPublic Sub New (oid As String, rawData As ReadOnlySpan(Of Byte), critical As Boolean)Parametry
- oid
- String
Identyfikator obiektu używany do identyfikowania rozszerzenia.
- rawData
- ReadOnlySpan<Byte>
Zakodowane dane używane do tworzenia rozszerzenia.
- critical
- Boolean
true jeśli rozszerzenie ma krytyczne znaczenie; w przeciwnym razie , false.
Dotyczy
.NET 10 i inne wersje
| Produkt | Wersje |
|---|---|
| .NET | 5, 6, 7, 8, 9, 10 |
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