UseLicense.Bind(SecureEnvironment) Methode

Definition

Namespace:

System.Security.RightsManagement

Assembly:

WindowsBase.dll

Bindet die Lizenz an eine bestimmte SecureEnvironment.

public:
 System::Security::RightsManagement::CryptoProvider ^ Bind(System::Security::RightsManagement::SecureEnvironment ^ secureEnvironment);

public System.Security.RightsManagement.CryptoProvider Bind (System.Security.RightsManagement.SecureEnvironment secureEnvironment);

member this.Bind : System.Security.RightsManagement.SecureEnvironment -> System.Security.RightsManagement.CryptoProvider

Public Function Bind (secureEnvironment As SecureEnvironment) As CryptoProvider

Parameter

secureEnvironment

SecureEnvironment

Die Umgebung, an die die Lizenz gebunden wird.

Gibt zurück

CryptoProvider

Eine CryptoProvider-Instanz, wenn die Lizenzbindung erfolgreich ausgeführt wurde, andernfalls null.

Ausnahmen

ArgumentNullException

secureEnvironment ist null.

Beispiele

Das folgende Beispiel zeigt, wie Sie diese Methode verwenden, um eine CryptoProviderzu initialisieren.

WriteStatus("   Signing the UnsignedPublishLicense\n" +
            "       to build the PublishLicense.");
UseLicense authorsUseLicense;
PublishLicense publishLicense =
    unsignedLicense.Sign(_secureEnv, out authorsUseLicense);

WriteStatus("   Binding the author's UseLicense and");
WriteStatus("       obtaining the CryptoProvider.");
CryptoProvider cryptoProvider = authorsUseLicense.Bind(_secureEnv);

WriteStatus("   Creating the EncryptedPackage.");
Stream packageStream = File.OpenRead(packageFile);
EncryptedPackageEnvelope ePackage =
    EncryptedPackageEnvelope.CreateFromPackage(encryptedFile,
        packageStream, publishLicense, cryptoProvider);

WriteStatus("   Adding an author's UseLicense.");
RightsManagementInformation rmi =
    ePackage.RightsManagementInformation;
rmi.SaveUseLicense(author, authorsUseLicense);

ePackage.Close();
WriteStatus("   Done - Package encryption complete.");

WriteStatus("Verifying package encryption.");
if (EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(encryptedFile))
{
    WriteStatus("   Confirmed - '" + encryptedFilename +
                "' is encrypted.");
}
else
{
    MessageBox.Show("ERROR: '" + encryptedFilename +
        "' is NOT ENCRYPTED.", "Encryption Error",
        MessageBoxButton.OK, MessageBoxImage.Error);
    WriteStatus("ERROR: '" + encryptedFilename +
                "' is NOT ENCRYPTED.\n");
    return false;
}

WriteStatus("   Signing the UnsignedPublishLicense" & vbLf & "       to build the PublishLicense.")
Dim authorsUseLicense As UseLicense = Nothing
Dim publishLicense As PublishLicense = unsignedLicense.Sign(_secureEnv, authorsUseLicense)

WriteStatus("   Binding the author's UseLicense and")
WriteStatus("       obtaining the CryptoProvider.")
Dim cryptoProvider As CryptoProvider = authorsUseLicense.Bind(_secureEnv)

WriteStatus("   Creating the EncryptedPackage.")
Dim packageStream As Stream = File.OpenRead(packageFile)
Dim ePackage As EncryptedPackageEnvelope = EncryptedPackageEnvelope.CreateFromPackage(encryptedFile, packageStream, publishLicense, cryptoProvider)

WriteStatus("   Adding an author's UseLicense.")
Dim rmi As RightsManagementInformation = ePackage.RightsManagementInformation
rmi.SaveUseLicense(author, authorsUseLicense)

ePackage.Close()
WriteStatus("   Done - Package encryption complete.")

WriteStatus("Verifying package encryption.")
If EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(encryptedFile) Then
    WriteStatus("   Confirmed - '" & encryptedFilename & "' is encrypted.")
Else
    MessageBox.Show("ERROR: '" & encryptedFilename & "' is NOT ENCRYPTED.", "Encryption Error", MessageBoxButton.OK, MessageBoxImage.Error)
    WriteStatus("ERROR: '" & encryptedFilename & "' is NOT ENCRYPTED." & vbLf)
    Return False
End If

Hinweise

Nachdem die Lizenz an eine sichere Umgebung gebunden ist, kann die Anwendung die von der Lizenz gewährten Rechte überprüfen und ausüben.

Die zurückgegebene CryptoProvider Instanz ermöglicht die Entschlüsselung und den Zugriff auf die geschützten Inhalte mit verwalteten Rechten.