SslStream 构造函数

参考

定义

命名空间:: System.Net.Security

程序集:: System.Net.Security.dll

程序集:: System.dll

程序集:: netstandard.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

初始化 SslStream 类的新实例。

重载

SslStream(Stream)	使用指定的 SslStream 初始化 Stream 类的新实例。
SslStream(Stream, Boolean)	使用指定的 SslStream 和流封闭行为初始化 Stream 类的新实例。
SslStream(Stream, Boolean, RemoteCertificateValidationCallback)	使用指定的 SslStream、流关闭行为和证书验证委托初始化 Stream 类的新实例。
SslStream(Stream, Boolean, RemoteCertificateValidationCallback, LocalCertificateSelectionCallback)	使用指定的 SslStream、流关闭行为、证书验证委托和证书选择委托初始化 Stream 类的新实例。
SslStream(Stream, Boolean, RemoteCertificateValidationCallback, LocalCertificateSelectionCallback, EncryptionPolicy)	使用指定的 SslStream 初始化 Stream 类的新实例。

注解

若要防止 SslStream 关闭提供的流，请使用 SslStream 构造函数。

SslStream(Stream)

Source:: SslStream.cs

Source:: SslStream.cs

Source:: SslStream.cs

使用指定的 SslStream 初始化 Stream 类的新实例。

public:
 SslStream(System::IO::Stream ^ innerStream);

public SslStream (System.IO.Stream innerStream);

new System.Net.Security.SslStream : System.IO.Stream -> System.Net.Security.SslStream

Public Sub New (innerStream As Stream)

参数

innerStream: Stream

一个 Stream 对象，SslStream 使用此对象发送和接收数据。

例外

ArgumentException

innerStream 不可读。

或

innerStream 不可写。

ArgumentNullException

innerStream 为 null。

或

innerStream 等于 Null。

注解

如果未在加密策略的配置文件中指定值，EncryptionPolicy则构造的实例的 SslStream 默认EncryptionPolicy.RequireEncryption为。

当加密策略设置为 EncryptionPolicy.NoEncryption时，需要使用 Null 密码。

适用于

SslStream(Stream, Boolean)

Source:: SslStream.cs

Source:: SslStream.cs

Source:: SslStream.cs

使用指定的 SslStream 和流封闭行为初始化 Stream 类的新实例。

public:
 SslStream(System::IO::Stream ^ innerStream, bool leaveInnerStreamOpen);

public SslStream (System.IO.Stream innerStream, bool leaveInnerStreamOpen);

new System.Net.Security.SslStream : System.IO.Stream * bool -> System.Net.Security.SslStream

Public Sub New (innerStream As Stream, leaveInnerStreamOpen As Boolean)

参数

innerStream: Stream

一个 Stream 对象，SslStream 使用此对象发送和接收数据。

leaveInnerStreamOpen: Boolean

一个布尔值，它指示 Stream 用来发送和接收数据的 SslStream 对象的封闭行为。此参数指示内部流是否保持打开状态。

例外

ArgumentException

innerStream 不可读。

或

innerStream 不可写。

ArgumentNullException

innerStream 为 null。

或

innerStream 等于 Null。

示例

下面的代码示例演示如何调用此构造函数。

static void ProcessClient( TcpClient^ client )
{
   
   // A client has connected. Create the 
   // SslStream using the client's network stream.
   SslStream^ sslStream = gcnew SslStream( client->GetStream(),false );
   
   // Authenticate the server but don't require the client to authenticate.
   try
   {
      sslStream->AuthenticateAsServer( serverCertificate, false, true );
      // false == no client cert required; true == check cert revocation.
      
      // Display the properties and settings for the authenticated stream.
      DisplaySecurityLevel( sslStream );
      DisplaySecurityServices( sslStream );
      DisplayCertificateInformation( sslStream );
      DisplayStreamProperties( sslStream );
      
      // Set timeouts for the read and write to 5 seconds.
      sslStream->ReadTimeout = 5000;
      sslStream->WriteTimeout = 5000;
      
      // Read a message from the client.   
      Console::WriteLine( L"Waiting for client message..." );
      String^ messageData = ReadMessage( sslStream );
      Console::WriteLine( L"Received: {0}", messageData );
      
      // Write a message to the client.
      array<Byte>^message = Encoding::UTF8->GetBytes( L"Hello from the server.<EOF>" );
      Console::WriteLine( L"Sending hello message." );
      sslStream->Write( message );
   }
   catch ( AuthenticationException^ e ) 
   {
      Console::WriteLine( L"Exception: {0}", e->Message );
      if ( e->InnerException != nullptr )
      {
         Console::WriteLine( L"Inner exception: {0}", e->InnerException->Message );
      }
      Console::WriteLine( L"Authentication failed - closing the connection." );
      sslStream->Close();
      client->Close();
      return;
   }
   finally
   {
      
      // The client stream will be closed with the sslStream
      // because we specified this behavior when creating
      // the sslStream.
      sslStream->Close();
      client->Close();
   }

}

static void ProcessClient (TcpClient client)
{
    // A client has connected. Create the
    // SslStream using the client's network stream.
    SslStream sslStream = new SslStream(
        client.GetStream(), false);
    // Authenticate the server but don't require the client to authenticate.
    try
    {
        sslStream.AuthenticateAsServer(serverCertificate, clientCertificateRequired: false, checkCertificateRevocation: true);

        // Display the properties and settings for the authenticated stream.
        DisplaySecurityLevel(sslStream);
        DisplaySecurityServices(sslStream);
        DisplayCertificateInformation(sslStream);
        DisplayStreamProperties(sslStream);

        // Set timeouts for the read and write to 5 seconds.
        sslStream.ReadTimeout = 5000;
        sslStream.WriteTimeout = 5000;
        // Read a message from the client.
        Console.WriteLine("Waiting for client message...");
        string messageData = ReadMessage(sslStream);
        Console.WriteLine("Received: {0}", messageData);

        // Write a message to the client.
        byte[] message = Encoding.UTF8.GetBytes("Hello from the server.<EOF>");
        Console.WriteLine("Sending hello message.");
        sslStream.Write(message);
    }
    catch (AuthenticationException e)
    {
        Console.WriteLine("Exception: {0}", e.Message);
        if (e.InnerException != null)
        {
            Console.WriteLine("Inner exception: {0}", e.InnerException.Message);
        }
        Console.WriteLine ("Authentication failed - closing the connection.");
        sslStream.Close();
        client.Close();
        return;
    }
    finally
    {
        // The client stream will be closed with the sslStream
        // because we specified this behavior when creating
        // the sslStream.
        sslStream.Close();
        client.Close();
    }
}

Private Shared Sub ProcessClient(client As TcpClient)
    ' A client has connected. Create the 
    ' SslStream using the client's network stream.
    Dim sslStream = New SslStream(client.GetStream(), False)

    Try

        sslStream.AuthenticateAsServer(serverCertificate, clientCertificateRequired:=False, checkCertificateRevocation:=True)
        ' Display the properties And settings for the authenticated stream.
        DisplaySecurityLevel(sslStream)
        DisplaySecurityServices(sslStream)
        DisplayCertificateInformation(sslStream)
        DisplayStreamProperties(sslStream)

        ' Set timeouts for the read and write to 5 seconds.
        sslStream.ReadTimeout = 5000
        sslStream.WriteTimeout = 5000

        ' Read a message from the client.   
        Console.WriteLine("Waiting for client message...")
        Dim messageData As String = ReadMessage(sslStream)
        Console.WriteLine("Received: {0}", messageData)

        ' Write a message to the client.
        Dim message As Byte() = Encoding.UTF8.GetBytes("Hello from the server.<EOF>")
        Console.WriteLine("Sending hello message.")
        sslStream.Write(message)
    Catch e As AuthenticationException
        Console.WriteLine("Exception: {0}", e.Message)

        If e.InnerException IsNot Nothing Then
            Console.WriteLine("Inner exception: {0}", e.InnerException.Message)
        End If

        Console.WriteLine("Authentication failed - closing the connection.")
        sslStream.Close()
        client.Close()
        Return
    Finally
        ' The client stream will be closed with the sslStream
        ' because we specified this behavior when creating
        ' the sslStream.
        sslStream.Close()
        client.Close()
    End Try
End Sub

注解

为参数指定true时，关闭 SslStream 对流没有影响innerStream;当不再需要时，必须显式关闭innerStream。leaveStreamOpen

如果未在加密策略的配置文件中指定值，EncryptionPolicy则构造的实例的 SslStream 默认EncryptionPolicy.RequireEncryption为。

当加密策略设置为 EncryptionPolicy.NoEncryption时，需要使用 Null 密码。

适用于

SslStream(Stream, Boolean, RemoteCertificateValidationCallback)

Source:: SslStream.cs

Source:: SslStream.cs

Source:: SslStream.cs

使用指定的 SslStream、流关闭行为和证书验证委托初始化 Stream 类的新实例。

public:
 SslStream(System::IO::Stream ^ innerStream, bool leaveInnerStreamOpen, System::Net::Security::RemoteCertificateValidationCallback ^ userCertificateValidationCallback);

public SslStream (System.IO.Stream innerStream, bool leaveInnerStreamOpen, System.Net.Security.RemoteCertificateValidationCallback? userCertificateValidationCallback);

public SslStream (System.IO.Stream innerStream, bool leaveInnerStreamOpen, System.Net.Security.RemoteCertificateValidationCallback userCertificateValidationCallback);

new System.Net.Security.SslStream : System.IO.Stream * bool * System.Net.Security.RemoteCertificateValidationCallback -> System.Net.Security.SslStream

Public Sub New (innerStream As Stream, leaveInnerStreamOpen As Boolean, userCertificateValidationCallback As RemoteCertificateValidationCallback)

参数

innerStream: Stream

一个 Stream 对象，SslStream 使用此对象发送和接收数据。

leaveInnerStreamOpen: Boolean

一个布尔值，它指示 Stream 用来发送和接收数据的 SslStream 对象的封闭行为。此参数指示内部流是否保持打开状态。

userCertificateValidationCallback: RemoteCertificateValidationCallback

RemoteCertificateValidationCallback 委托，负责验证远程方提供的证书。

例外

ArgumentException

innerStream 不可读。

或

innerStream 不可写。

ArgumentNullException

innerStream 为 null。

或

innerStream 等于 Null。

示例

下面的代码示例创建 SslStream 并启动身份验证的客户端部分。

// Create a TCP/IP client socket.
// machineName is the host running the server application.
TcpClient^ client = gcnew TcpClient(machineName, 5000);
Console::WriteLine("Client connected.");
  
// Create an SSL stream that will close 
// the client's stream.
SslStream^ sslStream = gcnew SslStream(
    client->GetStream(), false,
    gcnew RemoteCertificateValidationCallback(ValidateServerCertificate),
    nullptr);
  
// The server name must match the name
// on the server certificate.
try
{
    sslStream->AuthenticateAsClient(serverName);
}
catch (AuthenticationException^ ex) 
{
    Console::WriteLine("Exception: {0}", ex->Message);
    if (ex->InnerException != nullptr)
    {
        Console::WriteLine("Inner exception: {0}", 
            ex->InnerException->Message);
    }

    Console::WriteLine("Authentication failed - "
        "closing the connection.");
    sslStream->Close();
    client->Close();
    return;
}

// Create a TCP/IP client socket.
// machineName is the host running the server application.
TcpClient client = new TcpClient(machineName,5000);
Console.WriteLine("Client connected.");
// Create an SSL stream that will close the client's stream.
SslStream sslStream = new SslStream(
    client.GetStream(),
    false,
    new RemoteCertificateValidationCallback (ValidateServerCertificate),
    null
    );
// The server name must match the name on the server certificate.
try
{
    sslStream.AuthenticateAsClient(serverName);
}
catch (AuthenticationException e)
{
    Console.WriteLine("Exception: {0}", e.Message);
    if (e.InnerException != null)
    {
        Console.WriteLine("Inner exception: {0}", e.InnerException.Message);
    }
    Console.WriteLine ("Authentication failed - closing the connection.");
    client.Close();
    return;
}

' Create a TCP/IP client socket.
' machineName is the host running the server application.
Dim client = New TcpClient(machineName, 5000)
Console.WriteLine("Client connected.")

' Create an SSL stream that will close the client's stream.
Dim sslStream = New SslStream(
    client.GetStream(), False, 
    New RemoteCertificateValidationCallback(AddressOf ValidateServerCertificate), Nothing)

' The server name must match the name on the server certificate.
Try
    sslStream.AuthenticateAsClient(serverName)
Catch e As AuthenticationException
    Console.WriteLine("Exception: {0}", e.Message)

    If e.InnerException IsNot Nothing Then
        Console.WriteLine("Inner exception: {0}", e.InnerException.Message)
    End If

    Console.WriteLine("Authentication failed - closing the connection.")
    client.Close()
    Return
End Try

注解

为参数指定true时，关闭 SslStream 对流没有影响innerStream;当不再需要时，必须显式关闭innerStream。leaveStreamOpen

委托 userCertificateValidationCallback 的 certificateErrors 参数包含通道安全支持提供程序接口 (SSPI) 返回的任何 Windows 错误代码。委托 userCertificateValidationCallback 调用的方法的返回值确定身份验证是否成功。

调用委托的方法时， userCertificateValidationCallback 已选择安全协议和加密算法。可以使用方法确定所选的加密算法和强度是否足以满足应用程序的需求。否则，该方法应返回 false 以防止 SslStream 创建。

如果未在加密策略的配置文件中指定值，EncryptionPolicy则构造的实例的 SslStream 默认EncryptionPolicy.RequireEncryption为。

当加密策略设置为 EncryptionPolicy.NoEncryption时，需要使用 Null 密码。

注意

.NET 在创建 SSL 会话时缓存这些会话，并尝试将缓存的会话用于后续请求（如果可能）。尝试重用 SSL 会话时，Framework 会在身份验证期间使用提供的第一个元素 X509Certificate2Collection ， (如果有一个) ，则尝试在证书集合为空时重复使用匿名会话。

注意

SSL 版本 2 协议不支持客户端证书。

适用于

SslStream(Stream, Boolean, RemoteCertificateValidationCallback, LocalCertificateSelectionCallback)

Source:: SslStream.cs

Source:: SslStream.cs

Source:: SslStream.cs

使用指定的 SslStream、流关闭行为、证书验证委托和证书选择委托初始化 Stream 类的新实例。

public:
 SslStream(System::IO::Stream ^ innerStream, bool leaveInnerStreamOpen, System::Net::Security::RemoteCertificateValidationCallback ^ userCertificateValidationCallback, System::Net::Security::LocalCertificateSelectionCallback ^ userCertificateSelectionCallback);

public SslStream (System.IO.Stream innerStream, bool leaveInnerStreamOpen, System.Net.Security.RemoteCertificateValidationCallback? userCertificateValidationCallback, System.Net.Security.LocalCertificateSelectionCallback? userCertificateSelectionCallback);

public SslStream (System.IO.Stream innerStream, bool leaveInnerStreamOpen, System.Net.Security.RemoteCertificateValidationCallback userCertificateValidationCallback, System.Net.Security.LocalCertificateSelectionCallback userCertificateSelectionCallback);

new System.Net.Security.SslStream : System.IO.Stream * bool * System.Net.Security.RemoteCertificateValidationCallback * System.Net.Security.LocalCertificateSelectionCallback -> System.Net.Security.SslStream

Public Sub New (innerStream As Stream, leaveInnerStreamOpen As Boolean, userCertificateValidationCallback As RemoteCertificateValidationCallback, userCertificateSelectionCallback As LocalCertificateSelectionCallback)

参数

innerStream: Stream

一个 Stream 对象，SslStream 使用此对象发送和接收数据。

leaveInnerStreamOpen: Boolean

一个布尔值，它指示 Stream 用来发送和接收数据的 SslStream 对象的封闭行为。此参数指示内部流是否保持打开状态。

userCertificateValidationCallback: RemoteCertificateValidationCallback

RemoteCertificateValidationCallback 委托，负责验证远程方提供的证书。

userCertificateSelectionCallback: LocalCertificateSelectionCallback

LocalCertificateSelectionCallback 委托，负责选择用于身份验证的证书。

例外

ArgumentException

innerStream 不可读。

或

innerStream 不可写。

ArgumentNullException

innerStream 为 null。

或

innerStream 等于 Null。

示例

下面的代码示例演示如何调用此构造函数。此示例是为类提供的更大示例的一 SslStream 部分。

// Server name must match the host name and the name on the host's certificate. 
serverName = args[ 1 ];

// Create a TCP/IP client socket.
TcpClient^ client = gcnew TcpClient( serverName,5000 );
Console::WriteLine( L"Client connected." );

// Create an SSL stream that will close the client's stream.
SslStream^ sslStream = gcnew SslStream( 
    client->GetStream(),
    false,
    gcnew RemoteCertificateValidationCallback( ValidateServerCertificate ),
    gcnew LocalCertificateSelectionCallback( SelectLocalCertificate ) );

// Server name must match the host name and the name on the host's certificate.
serverName = args[0];
// Create a TCP/IP client socket.
TcpClient client = new TcpClient(serverName,5000);
Console.WriteLine("Client connected.");
// Create an SSL stream that will close the client's stream.
SslStream sslStream = new SslStream(
    client.GetStream(),
    false,
    new RemoteCertificateValidationCallback (ValidateServerCertificate),
    new LocalCertificateSelectionCallback(SelectLocalCertificate)
    );

' Server name must match the host name and the name on the host's certificate. 
serverName = args(0)
' Create a TCP/IP client socket.
Dim client As New TcpClient(serverName, 5000)
Console.WriteLine("Client connected.")
' Create an SSL stream that will close the client's stream.
Dim sslStream As New SslStream(
    client.GetStream(), False, 
    New RemoteCertificateValidationCallback(AddressOf ValidateServerCertificate), 
    New LocalCertificateSelectionCallback(AddressOf SelectLocalCertificate))

注解

为参数指定true时，关闭 SslStream 对流没有影响innerStream;当不再需要时，必须显式关闭innerStream。leaveStreamOpen

userCertificateSelectionCallback当应用程序具有多个证书并且必须动态选择证书时，委托非常有用。 “MY”存储中的证书将传递给委托调用的方法。

如果未在加密策略的配置文件中指定值，EncryptionPolicy则构造的实例的 SslStream 默认EncryptionPolicy.RequireEncryption为。

当加密策略设置为 EncryptionPolicy.NoEncryption时，需要使用 Null 密码。

注意

适用于

SslStream(Stream, Boolean, RemoteCertificateValidationCallback, LocalCertificateSelectionCallback, EncryptionPolicy)

Source:: SslStream.IO.cs

Source:: SslStream.cs

Source:: SslStream.cs

使用指定的 SslStream 初始化 Stream 类的新实例。

public:
 SslStream(System::IO::Stream ^ innerStream, bool leaveInnerStreamOpen, System::Net::Security::RemoteCertificateValidationCallback ^ userCertificateValidationCallback, System::Net::Security::LocalCertificateSelectionCallback ^ userCertificateSelectionCallback, System::Net::Security::EncryptionPolicy encryptionPolicy);

public SslStream (System.IO.Stream innerStream, bool leaveInnerStreamOpen, System.Net.Security.RemoteCertificateValidationCallback? userCertificateValidationCallback, System.Net.Security.LocalCertificateSelectionCallback? userCertificateSelectionCallback, System.Net.Security.EncryptionPolicy encryptionPolicy);

public SslStream (System.IO.Stream innerStream, bool leaveInnerStreamOpen, System.Net.Security.RemoteCertificateValidationCallback userCertificateValidationCallback, System.Net.Security.LocalCertificateSelectionCallback userCertificateSelectionCallback, System.Net.Security.EncryptionPolicy encryptionPolicy);

new System.Net.Security.SslStream : System.IO.Stream * bool * System.Net.Security.RemoteCertificateValidationCallback * System.Net.Security.LocalCertificateSelectionCallback * System.Net.Security.EncryptionPolicy -> System.Net.Security.SslStream

Public Sub New (innerStream As Stream, leaveInnerStreamOpen As Boolean, userCertificateValidationCallback As RemoteCertificateValidationCallback, userCertificateSelectionCallback As LocalCertificateSelectionCallback, encryptionPolicy As EncryptionPolicy)

参数

innerStream: Stream

一个 Stream 对象，SslStream 使用此对象发送和接收数据。

leaveInnerStreamOpen: Boolean

一个布尔值，它指示 Stream 用来发送和接收数据的 SslStream 对象的封闭行为。此参数指示内部流是否保持打开状态。

userCertificateValidationCallback: RemoteCertificateValidationCallback

RemoteCertificateValidationCallback 委托，负责验证远程方提供的证书。

userCertificateSelectionCallback: LocalCertificateSelectionCallback

LocalCertificateSelectionCallback 委托，负责选择用于身份验证的证书。

encryptionPolicy: EncryptionPolicy

要使用的 EncryptionPolicy。

例外

ArgumentException

innerStream 不可读。

或

innerStream 不可写。

或

encryptionPolicy 无效。

ArgumentNullException

innerStream 为 null。

或

innerStream 等于 Null。

注解

当参数设置为 EncryptionPolicy.NoEncryption时，encryptionPolicy需要使用 Null 密码。

适用于

SslStream 构造函数

定义

重载

注解

SslStream(Stream)

参数

例外

注解

适用于

SslStream(Stream, Boolean)

参数

例外

示例

注解

适用于

SslStream(Stream, Boolean, RemoteCertificateValidationCallback)

参数

例外

示例

注解

适用于

SslStream(Stream, Boolean, RemoteCertificateValidationCallback, LocalCertificateSelectionCallback)

参数

例外

示例

注解

适用于

SslStream(Stream, Boolean, RemoteCertificateValidationCallback, LocalCertificateSelectionCallback, EncryptionPolicy)

参数

例外

注解

适用于

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