RSACryptoServiceProvider.PersistKeyInCsp Właściwość

public:
 property bool PersistKeyInCsp { bool get(); void set(bool value); };

public bool PersistKeyInCsp { get; set; }

member this.PersistKeyInCsp : bool with get, set

Public Property PersistKeyInCsp As Boolean

Wartość właściwości

true jeśli klucz powinien być utrwalone w programie CSP; w przeciwnym razie , false.

Przykłady

Poniższy przykład kodu tworzy RSACryptoServiceProvider obiekt i utrwala klucz w kontenerze kluczy.

using namespace System;
using namespace System::Security::Cryptography;
void RSAPersistKeyInCSP( String^ ContainerName )
{
   try
   {
      
      // Create a new instance of CspParameters.  Pass
      // 13 to specify a DSA container or 1 to specify
      // an RSA container.  The default is 1.
      CspParameters^ cspParams = gcnew CspParameters;
      
      // Specify the container name using the passed variable.
      cspParams->KeyContainerName = ContainerName;
      
      //Create a new instance of RSACryptoServiceProvider to generate
      //a new key pair.  Pass the CspParameters class to persist the 
      //key in the container.  The PersistKeyInCsp property is true by 
      //default, allowing the key to be persisted. 
      RSACryptoServiceProvider^ RSAalg = gcnew RSACryptoServiceProvider( cspParams );
      
      //Indicate that the key was persisted.
      Console::WriteLine( "The RSA key was persisted in the container, \"{0}\".", ContainerName );
   }
   catch ( CryptographicException^ e ) 
   {
      Console::WriteLine( e->Message );
   }

}

void RSADeleteKeyInCSP( String^ ContainerName )
{
   try
   {
      
      // Create a new instance of CspParameters.  Pass
      // 13 to specify a DSA container or 1 to specify
      // an RSA container.  The default is 1.
      CspParameters^ cspParams = gcnew CspParameters;
      
      // Specify the container name using the passed variable.
      cspParams->KeyContainerName = ContainerName;
      
      //Create a new instance of RSACryptoServiceProvider. 
      //Pass the CspParameters class to use the 
      //key in the container.
      RSACryptoServiceProvider^ RSAalg = gcnew RSACryptoServiceProvider( cspParams );
      
      //Explicitly set the PersistKeyInCsp property to false
      //to delete the key entry in the container.
      RSAalg->PersistKeyInCsp = false;
      
      //Call Clear to release resources and delete the key from the container.
      RSAalg->Clear();
      
      //Indicate that the key was persisted.
      Console::WriteLine( "The RSA key was deleted from the container, \"{0}\".", ContainerName );
   }
   catch ( CryptographicException^ e ) 
   {
      Console::WriteLine( e->Message );
   }

}

int main()
{
   String^ KeyContainerName = "MyKeyContainer";
   
   //Create a new key and persist it in 
   //the key container.  
   RSAPersistKeyInCSP( KeyContainerName );
   
   //Delete the key from the key container.
   RSADeleteKeyInCSP( KeyContainerName );
}

using System;
using System.Security.Cryptography;

class RSACSPSample
{

    static void Main()
    {

        string KeyContainerName = "MyKeyContainer";

        //Create a new key and persist it in
        //the key container.
        RSAPersistKeyInCSP(KeyContainerName);

        //Delete the key from the key container.
        RSADeleteKeyInCSP(KeyContainerName);
    }

    public static void RSAPersistKeyInCSP(string ContainerName)
    {
        try
        {
            // Create a new instance of CspParameters.  Pass
            // 13 to specify a DSA container or 1 to specify
            // an RSA container.  The default is 1.
            CspParameters cspParams = new CspParameters();

            // Specify the container name using the passed variable.
            cspParams.KeyContainerName = ContainerName;

            //Create a new instance of RSACryptoServiceProvider to generate
            //a new key pair.  Pass the CspParameters class to persist the
            //key in the container.  The PersistKeyInCsp property is true by
            //default, allowing the key to be persisted.
            RSACryptoServiceProvider RSAalg = new RSACryptoServiceProvider(cspParams);

            //Indicate that the key was persisted.
            Console.WriteLine("The RSA key was persisted in the container, \"{0}\".", ContainerName);
        }
        catch(CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
    }

    public static void RSADeleteKeyInCSP(string ContainerName)
    {
        try
        {
            // Create a new instance of CspParameters.  Pass
            // 13 to specify a DSA container or 1 to specify
            // an RSA container.  The default is 1.
            CspParameters cspParams = new CspParameters();

            // Specify the container name using the passed variable.
            cspParams.KeyContainerName = ContainerName;

            //Create a new instance of RSACryptoServiceProvider.
            //Pass the CspParameters class to use the
            //key in the container.
            RSACryptoServiceProvider RSAalg = new RSACryptoServiceProvider(cspParams);

            //Explicitly set the PersistKeyInCsp property to false
            //to delete the key entry in the container.
            RSAalg.PersistKeyInCsp = false;

            //Call Clear to release resources and delete the key from the container.
            RSAalg.Clear();

            //Indicate that the key was persisted.
            Console.WriteLine("The RSA key was deleted from the container, \"{0}\".", ContainerName);
        }
        catch(CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
    }
}

Imports System.Security.Cryptography

Module RSACSPExample

    Sub Main()

        Dim KeyContainerName As String = "MyKeyContainer"

        'Create a new key and persist it in 
        'the key container.  
        RSAPersistKeyInCSP(KeyContainerName)

        'Delete the key from the key container.
        RSADeleteKeyInCSP(KeyContainerName)
    End Sub


    Sub RSAPersistKeyInCSP(ByVal ContainerName As String)
        Try
            ' Create a new instance of CspParameters.  Pass
            ' 13 to specify a DSA container or 1 to specify
            ' an RSA container.  The default is 1.
            Dim cspParams As New CspParameters

            ' Specify the container name using the passed variable.
            cspParams.KeyContainerName = ContainerName

            'Create a new instance of RSACryptoServiceProvider to generate
            'a new key pair.  Pass the CspParameters class to persist the 
            'key in the container.  The PersistKeyInCsp property is True by 
            'default, allowing the key to be persisted. 
            Dim RSAalg As New RSACryptoServiceProvider(cspParams)

            'Indicate that the key was persisted.
            Console.WriteLine("The RSA key was persisted in the container, ""{0}"".", ContainerName)
        Catch e As CryptographicException
            Console.WriteLine(e.Message)
        End Try
    End Sub


    Sub RSADeleteKeyInCSP(ByVal ContainerName As String)
        Try
            ' Create a new instance of CspParameters.  Pass
            ' 13 to specify a DSA container or 1 to specify
            ' an RSA container.  The default is 1.
            Dim cspParams As New CspParameters

            ' Specify the container name using the passed variable.
            cspParams.KeyContainerName = ContainerName

            'Create a new instance of RSACryptoServiceProvider. 
            'Pass the CspParameters class to use the 
            'key in the container.
            Dim RSAalg As New RSACryptoServiceProvider(cspParams)

            'Explicitly set the PersistKeyInCsp property to False
            'to delete the key entry in the container.
            RSAalg.PersistKeyInCsp = False

            'Call Clear to release resources and delete the key from the container.
            RSAalg.Clear()

            'Indicate that the key was persisted.
            Console.WriteLine("The RSA key was deleted from the container, ""{0}"".", ContainerName)
        Catch e As CryptographicException
            Console.WriteLine(e.Message)
        End Try
    End Sub

End Module

Uwagi

Ta właściwość służy do utrwalania klucza w kontenerze kluczy.

Właściwość PersistKeyInCsp jest ustawiana true automatycznie podczas określania nazwy kontenera klucza w KeyContainerName polu CspParameters obiektu i używania jej do inicjowania RSACryptoServiceProvider obiektu przez wywołanie jednego z konstruktorów z parametrem parameters .

Właściwość PersistKeyInCsp nie ma wpływu, jeśli RSACryptoServiceProvider obiekt zostanie utworzony przy użyciu nazwy kontenera null klucza.

Dotyczy

Zobacz też

• Usługi kryptograficzne