RSACryptoServiceProvider.UseMachineKeyStore プロパティとは何？わかりやすく解説 Weblio辞書

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RSACryptoServiceProvider.UseMachineKeyStore プロパティ

ユーザープロファイルストアの代わりに、コンピュータのキーストアでキーを永続化する必要があるかどうかを示す値を取得または設定します。

名前空間: System.Security.Cryptography
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Shared Property UseMachineKeyStore
 As Boolean

Visual Basic (使用法)

Dim value As Boolean

value = RSACryptoServiceProvider.UseMachineKeyStore

RSACryptoServiceProvider.UseMachineKeyStore = value

public static bool UseMachineKeyStore
 { get; set; }

C++

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

/** @property */
public static boolean get_UseMachineKeyStore
 ()

/** @property */
public static void set_UseMachineKeyStore
 (boolean value)

JScript

public static function get
 UseMachineKeyStore () : boolean

public static function set
 UseMachineKeyStore (value : boolean)

プロパティ値
キーをコンピュータのキーストアで永続化する必要がある場合は true。それ以外の場合は false。

解説

このプロパティを true に設定することは、UseMachineKeyStore フラグを CspParameters オブジェクトに渡すことと同じです。UseMachineKeyStore プロパティは、現在のアプリケーションドメイン内のすべてのコードに適用されます。CspParameters オブジェクトの場合は、そのオブジェクトを明示的に参照しているクラスに対してだけ適用されます。これらの設定は、ユーザープロファイルが読み込まれていないアカウントを偽装するか、このようなアカウントで実行するときに使用します。

使用例

RSACryptoServiceProvider オブジェクトを作成し、静的な UseMachineKeyStore プロパティを設定してユーザープロファイルキーストアの代わりにコンピュータのキーストアを使用するコード例を次に示します。

Visual Basic

Imports System.Security.Cryptography

Module RSACSPExample

    Sub Main()

        Dim KeyContainerName As String
 = "MyKeyContainer"

        'Set the static UseMachineKeyStore property to
        'use the machine key store instead of the user
        'profile key store.  All code in the current 
        'application domain will use this setting.
        RSACryptoServiceProvider.UseMachineKeyStore = True

        '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 RSA 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 RSA 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

using System;
using System.Security.Cryptography;

class RSACSPSample
{

    static void Main()
    {

        string KeyContainerName = "MyKeyContainer";

        //Set the static UseMachineKeyStore property to
        //use the machine key store instead of the user
        //profile key store.  All code in the current 
        //application domain will use this setting.
        RSACryptoServiceProvider.UseMachineKeyStore = true;

        //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 RSA 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 RSA 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);

        }
    }
}

C++

using namespace System;
using namespace System::Security::Cryptography;
void RSAPersistKeyInCSP( String^ ContainerName )
{
   try
   {
      
      // Create a new instance of CspParameters.  Pass
      // 13 to specify a RSA 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 RSA 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";
   
   //Set the static UseMachineKeyStore property to
   //use the machine key store instead of the user
   //profile key store.  All code in the current 
   //application domain will use this setting.
   RSACryptoServiceProvider::UseMachineKeyStore = true;
   
   //Create a new key and persist it in 
   //the key container.  
   RSAPersistKeyInCSP( KeyContainerName );
   
   //Delete the key from the key container.
   RSADeleteKeyInCSP( KeyContainerName );
}

import System.*;
import System.Security.Cryptography.*;

class RSACSPSample
{
    public static void main(String
 args[])
    {
        String keyContainerName = "MyKeyContainer";
        //Set the static UseMachineKeyStore property to
        //use the machine key store instead of the user
        //profile key store.  All code in the current 
        //application domain will use this setting.
        RSACryptoServiceProvider.set_UseMachineKeyStore(true);
        //Create a new key and persist it in 
        //the key container.  
        RSAPersistKeyInCSP(keyContainerName);
        //Delete the key from the key container.
        RSADeleteKeyInCSP(keyContainerName);
    } //main

    public static void RSAPersistKeyInCSP(String
 containerName)
    {
        try {
            // Create a new instance of CspParameters.  Pass
            // 13 to specify a RSA 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.get_Message());
        }
    } //RSAPersistKeyInCSP

    public static void RSADeleteKeyInCSP(String
 containerName)
    {
        try {
            // Create a new instance of CspParameters.  Pass
            // 13 to specify a RSA 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.set_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.get_Message());
        }
    } //RSADeleteKeyInCSP
} //RSACSPSample

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1
.NET Compact Framework
サポート対象 : 2.0

参照

関連項目
RSACryptoServiceProvider クラス
RSACryptoServiceProvider メンバ
System.Security.Cryptography 名前空間
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RSACryptoServiceProvider.UseMachineKeyStore プロパティとは？ わかりやすく解説

RSACryptoServiceProvider.UseMachineKeyStore プロパティ

RSACryptoServiceProvider.UseMachineKeyStore プロパティとは？わかりやすく解説