DSACryptoServiceProvider.ImportParameters-Methode

Importiert die angegebenen DSAParameters.

Namespace: System.Security.Cryptography
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
Public Overrides Sub ImportParameters ( _
    parameters As DSAParameters _
)
'Usage
Dim instance As DSACryptoServiceProvider
Dim parameters As DSAParameters

instance.ImportParameters(parameters)

public override void ImportParameters (
    DSAParameters parameters
)

public:
virtual void ImportParameters (
    DSAParameters parameters
) override

public void ImportParameters (
    DSAParameters parameters
)

public override function ImportParameters (
    parameters : DSAParameters
)

Parameter

• parameters
  Die Parameter für DSA.

Ausnahmen

Ausnahmetyp	Bedingung
CryptographicException	Der Kryptografiedienstanbieter (Cryptographic Service Provider, CSP) kann nicht ermittelt werden. – oder – Der parameters-Parameter weist fehlende Felder auf.

Beispiel

Im folgenden Codebeispiel werden Schlüsselinformationen zu einem DSACryptoServiceProvider-Objekt von einem DSAParameters-Objekt importiert.

Try
    'Create a new DSACryptoServiceProvider object. 
    Dim DSA As New DSACryptoServiceProvider()

    'Export the key information to a DSAParameters object.
    'Pass false to export the public key information or pass
    'true to export public and private key information.
    Dim DSAParams As DSAParameters = DSA.ExportParameters(False)

    'Create another DSACryptoServiceProvider object.
    Dim DSA2 As New DSACryptoServiceProvider()

    'Import the the key information from the other 
    'DSACryptoServiceProvider object.  
    DSA2.ImportParameters(DSAParams)


Catch e As CryptographicException
    'Catch this exception in case the encryption did
    'not succeed.
    Console.WriteLine(e.Message)
End Try

try
{
    //Create a new DSACryptoServiceProvider object. 
    DSACryptoServiceProvider DSA = new DSACryptoServiceProvider();

    //Export the key information to a DSAParameters object.
    //Pass false to export the public key information or pass
    //true to export public and private key information.
    DSAParameters DSAParams = DSA.ExportParameters(false);

    //Create another DSACryptoServiceProvider object.
    DSACryptoServiceProvider DSA2 = new DSACryptoServiceProvider();

    //Import the the key information from the other 
    //DSACryptoServiceProvider object.  
    DSA2.ImportParameters(DSAParams);


}
catch(CryptographicException e)
{
    //Catch this exception in case the encryption did
    //not succeed.
    Console.WriteLine(e.Message);

}

try
{
   //Create a new DSACryptoServiceProvider object. 
   DSACryptoServiceProvider^ DSA = gcnew DSACryptoServiceProvider;
   
   //Export the key information to a DSAParameters object.
   //Pass false to export the public key information or pass
   //true to export public and private key information.
   DSAParameters DSAParams = DSA->ExportParameters( false );
   
   //Create another DSACryptoServiceProvider object.
   DSACryptoServiceProvider^ DSA2 = gcnew DSACryptoServiceProvider;
   
   //Import the the key information from the other 
   //DSACryptoServiceProvider Object*.  
   DSA2->ImportParameters( DSAParams );
}
catch ( CryptographicException^ e ) 
{
   //Catch this exception in case the encryption did
   //not succeed.
   Console::WriteLine( e->Message );
}

try {
    // Create a new DSACryptoServiceProvider object. 
    DSACryptoServiceProvider dsa = new DSACryptoServiceProvider();

    // Export the key information to a DSAParameters object.
    // Pass false to export the public key information or pass
    // true to export public and private key information.
    DSAParameters dsaParams = dsa.ExportParameters(false);

    // Create another DSACryptoServiceProvider object.
    DSACryptoServiceProvider dsa2 = new DSACryptoServiceProvider();

    // Import the the key information from the other 
    // DSACryptoServiceProvider object.  
    dsa2.ImportParameters(dsaParams);
}
catch (CryptographicException e) {
    // Catch this exception in case the encryption did
    // not succeed.
    Console.WriteLine(e.get_Message());
}

.NET Framework-Sicherheit

• KeyContainerPermission  für die Berechtigung zum Importieren eines Schlüssels. Zugeordnete Enumeration: Import. Sicherheitsaktion: Demand.

Plattformen

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

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

.NET Compact Framework

Unterstützt in: 2.0

Siehe auch

Referenz

DSACryptoServiceProvider-Klasse
DSACryptoServiceProvider-Member
System.Security.Cryptography-Namespace

Weitere Ressourcen

Kryptografische Dienste