de.schlichtherle.truezip.crypto.raes.param
Class KeyManagerRaesParameters

java.lang.Object
  de.schlichtherle.truezip.crypto.raes.param.KeyManagerRaesParameters

All Implemented Interfaces:

RaesParameters, RaesParametersProvider

@DefaultAnnotation(value=edu.umd.cs.findbugs.annotations.NonNull.class)
public final class KeyManagerRaesParameters
extends Object
implements RaesParametersProvider

An adapter which retrieves RaesParameters by using a KeyManager.

According to the requirements of RAES, only password based encryption is supported. The adapter pattern allows this class to be changed to support other encryption and authentication schemes in future versions without requiring to change the client code.

Author:

Christian Schlichtherle

manager

private final KeyManager<AesCipherParameters> manager

resource

private final URI resource

KeyManagerRaesParameters

public KeyManagerRaesParameters(KeyManagerProvider provider,
                                URI resource)

Equivalent to new KeyManagerRaesParameters(provider.get(AesCipherParameters.class), resource).

KeyManagerRaesParameters

public KeyManagerRaesParameters(KeyManager<AesCipherParameters> manager,
                                URI resource)

Constructs new RAES parameters using the given key manager.

Parameters:

resource - the absolute URI of the RAES file.

Throws:

IllegalArgumentException - if resource is not absolute.

get

public <P extends RaesParameters> P get(Class<P> type)

Description copied from interface: RaesParametersProvider

Requests a RaesParameters instance of the given type.

Specified by:

get in interface RaesParametersProvider

Parameters:

type - the RaesParameters interface class which's implementation is searched.

Returns:

An instance of RaesParameters or null if no RAES parameters are available.