UseLicense Class

Definition

Namespace:

System.Security.RightsManagement

Assembly:

WindowsBase.dll

Represents a license that enables access to protected rights managed content.

C#

public class UseLicense

Inheritance

Object

UseLicense

Examples

The following example shows how to use this class to initialize a PublishLicense.

C#

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;
}

Remarks

As with other System.Security.RightsManagement types, UseLicense is only usable in full trust applications.

Constructors

UseLicense(String)

Initializes a new instance of the UseLicense class.

Properties

ApplicationData	Gets the application data dictionary that contains key/value pairs passed from the publishing application to the consuming application.
ContentId	Gets the content identifier created by the publisher.
Owner	Gets the owner of the license.

Methods

Bind(SecureEnvironment)	Binds the license to a given SecureEnvironment.
Equals(Object)	Indicates if this license is equivalent to another given license.
GetHashCode()	Returns the hash code associated with this license.
ToString()	Returns the serialized XrML string used to create this license.

Applies to