RSACryptoServiceProvider.UseMachineKeyStore Propriété

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

public static bool UseMachineKeyStore { get; set; }

static member UseMachineKeyStore : bool with get, set

Public Shared Property UseMachineKeyStore As Boolean

Valeur de propriété

true si la clé doit être persistante dans le magasin de clés de l’ordinateur ; sinon, false.

Exemples

L’exemple de code suivant crée un RSACryptoServiceProvider objet et définit la propriété statique UseMachineKeyStore pour utiliser le magasin de clés de machine au lieu du magasin de clés de profil utilisateur.

using namespace System;
using namespace System::Security::Cryptography;

ref class RSAKeyStoreSample
{
public:
    static void Main()
    {
        // Set the static UseMachineKeyStore property to use the machine key
        // store instead of the user profile key store. All CSP instances not
        // initialized with CspParameters will use this setting.
        RSACryptoServiceProvider::UseMachineKeyStore = true;
        try
        {
            RSACryptoServiceProvider^ RSAalg;

            // This CSP instance will use the Machine Store as set above and is
            // initialized with no parameters.
            RSAalg = gcnew RSACryptoServiceProvider();
            ShowContainerInfo(RSAalg->CspKeyContainerInfo);
            RSAalg->PersistKeyInCsp = false;
            delete RSAalg;

            CspParameters^ cspParams = gcnew CspParameters();

            cspParams->KeyContainerName = "MyKeyContainer";

            // This CSP instance will use the User Store since cspParams are used.
            RSAalg = gcnew RSACryptoServiceProvider(cspParams);
            ShowContainerInfo(RSAalg->CspKeyContainerInfo);
            RSAalg->PersistKeyInCsp = false;
            delete RSAalg;

            cspParams->Flags |= CspProviderFlags::UseMachineKeyStore;

            // This CSP instance will use the Machine Store. Although cspParams are used,
            // the cspParams.Flags is set to CspProviderFlags.UseMachineKeyStore.
            RSAalg = gcnew RSACryptoServiceProvider(cspParams);
            ShowContainerInfo(RSAalg->CspKeyContainerInfo);
            RSAalg->PersistKeyInCsp = false;
            delete RSAalg;
        }
        catch (CryptographicException^ e)
        {
            Console::WriteLine("Exception: {0}", e->GetType()->FullName);
            Console::WriteLine(e->Message);
        }
    }

    static void ShowContainerInfo(CspKeyContainerInfo^ containerInfo)
    {
        String^ keyStore;

        Console::WriteLine();
        if (containerInfo->MachineKeyStore)
        {
            keyStore = "Machine Store";
        }
        else
        {
            keyStore = "User Store";
        }
        Console::WriteLine("Key Store:     {0}", keyStore);
        Console::WriteLine("Key Provider:  {0}", containerInfo->ProviderName);
        Console::WriteLine("Key Container: \"{0}\"", containerInfo->KeyContainerName);
        Console::WriteLine("Generated:     {0}", containerInfo->RandomlyGenerated);
        Console::WriteLine("Key Nubmer:    {0}", containerInfo->KeyNumber);
        Console::WriteLine("Removable Key: {0}", containerInfo->Removable);
    }
};

int main()
{
    RSAKeyStoreSample::Main();
}

using System;
using System.Security.Cryptography;

public class RSAKeyStoreSample
{
    public static void Main()
    {
        // Set the static UseMachineKeyStore property to use the machine key
        // store instead of the user profile key store. All CSP instances not
        // initialized with CspParameters will use this setting.
        RSACryptoServiceProvider.UseMachineKeyStore = true;
        try
        {
            // This CSP instance will use the Machine Store as set above and is
            // initialized with no parameters.
            using (RSACryptoServiceProvider RSAalg = new RSACryptoServiceProvider())
            {
                ShowContainerInfo(RSAalg.CspKeyContainerInfo);
                RSAalg.PersistKeyInCsp = false;
            }

            CspParameters cspParams = new CspParameters();

            cspParams.KeyContainerName = "MyKeyContainer";

            // This CSP instance will use the User Store since cspParams are used.
            using (RSACryptoServiceProvider RSAalg = new RSACryptoServiceProvider(cspParams))
            {
                ShowContainerInfo(RSAalg.CspKeyContainerInfo);
                RSAalg.PersistKeyInCsp = false;
            }

            cspParams.Flags |= CspProviderFlags.UseMachineKeyStore;

            // This CSP instance will use the Machine Store. Although cspParams are used,
            // the cspParams.Flags is set to CspProviderFlags.UseMachineKeyStore.
            using (RSACryptoServiceProvider RSAalg = new RSACryptoServiceProvider(cspParams))
            {
                ShowContainerInfo(RSAalg.CspKeyContainerInfo);
                RSAalg.PersistKeyInCsp = false;
            }
        }
        catch (CryptographicException e)
        {
            Console.WriteLine("Exception: {0}", e.GetType().FullName);
            Console.WriteLine(e.Message);
        }
    }

    public static void ShowContainerInfo(CspKeyContainerInfo containerInfo)
    {
        string keyStore;

        Console.WriteLine();
        if (containerInfo.MachineKeyStore)
        {
            keyStore = "Machine Store";
        }
        else
        {
            keyStore = "User Store";
        }
        Console.WriteLine("Key Store:     {0}", keyStore);
        Console.WriteLine("Key Provider:  {0}", containerInfo.ProviderName);
        Console.WriteLine("Key Container: \"{0}\"", containerInfo.KeyContainerName);
        Console.WriteLine("Generated:     {0}", containerInfo.RandomlyGenerated);
        Console.WriteLine("Key Nubmer:    {0}", containerInfo.KeyNumber);
        Console.WriteLine("Removable Key: {0}", containerInfo.Removable);
    }
}

Imports System.Security.Cryptography

Public Class RSAKeyStoreSample
    Public Shared Sub Main()
        ' Set the static UseMachineKeyStore property to use the machine key
        ' store instead of the user profile key store. All CSP instances not
        ' initialized with CspParameters will use this setting.
        RSACryptoServiceProvider.UseMachineKeyStore = True
        Try
            ' This CSP instance will use the Machine Store as set above and is
            ' initialized with no parameters.
            Using RSAalg As New RSACryptoServiceProvider()
                ShowContainerInfo(RSAalg.CspKeyContainerInfo)
                RSAalg.PersistKeyInCsp = False
            End Using

            Dim cspParams As New CspParameters()

            cspParams.KeyContainerName = "MyKeyContainer"

            ' This CSP instance will use the User Store since cspParams are used.
            Using RSAalg As New RSACryptoServiceProvider(cspParams)
                ShowContainerInfo(RSAalg.CspKeyContainerInfo)
                RSAalg.PersistKeyInCsp = False
            End Using

            cspParams.Flags = cspParams.Flags Or CspProviderFlags.UseMachineKeyStore

            ' This CSP instance will use the Machine Store. Although cspParams are used,
            ' the cspParams.Flags is set to CspProviderFlags.UseMachineKeyStore.
            Using RSAalg As New RSACryptoServiceProvider(cspParams)
                ShowContainerInfo(RSAalg.CspKeyContainerInfo)
                RSAalg.PersistKeyInCsp = False
            End Using
        Catch e As CryptographicException
            Console.WriteLine("Exception: {0}", e.GetType().FullName)
            Console.WriteLine(e.Message)

        End Try
    End Sub

    Public Shared Sub ShowContainerInfo(containerInfo As CspKeyContainerInfo)
        Dim keyStore As String

        Console.WriteLine()
        If containerInfo.MachineKeyStore Then
            keyStore = "Machine Store"
        Else
            keyStore = "User Store"
        End If
        Console.WriteLine("Key Store:     {0}", keyStore)
        Console.WriteLine("Key Provider:  {0}", containerInfo.ProviderName)
        Console.WriteLine("Key Container: ""{0}""", containerInfo.KeyContainerName)
        Console.WriteLine("Generated:     {0}", containerInfo.RandomlyGenerated)
        Console.WriteLine("Key Nubmer:    {0}", containerInfo.KeyNumber)
        Console.WriteLine("Removable Key: {0}", containerInfo.Removable)
    End Sub
End Class

Remarques

Définir cette propriété sur true revient à passer l’indicateur UseMachineKeyStore à un CspParameters objet . La UseMachineKeyStore propriété s’applique à tout le code du domaine d’application actuel, tandis que l’objet CspParameters s’applique uniquement aux classes qui le référencent explicitement. Ces paramètres sont utiles lors de l’emprunt d’identité ou de l’exécution sous un compte dont le profil utilisateur n’est pas chargé. Le paramètre UseMachineKeyStore affecte l’emplacement du magasin de clés uniquement si RSACryptoServiceProvider est initialisé sans paramètres.

S’applique à

Voir aussi

• services de chiffrement