org.refcodes.forwardsecrecy

Class AbstractEncryptionService

java.lang.Object

org.refcodes.forwardsecrecy.AbstractEncryptionService

All Implemented Interfaces:

Iterator<CipherVersion>, CipherVersionGenerator<CipherVersion>, EncryptionService, org.refcodes.generator.Generator<CipherVersion>

Direct Known Subclasses:

LoopbackEncryptionServiceImpl, PublicKeyEncryptionServiceImpl

public abstract class AbstractEncryptionService
extends Object
implements EncryptionService

Abstract base implementation for non abstract EncryptionService implementations.

Constructor Summary

Constructors

Constructor and Description
AbstractEncryptionService(String aNamespace, EncryptionServer aEncryptionServer, CipherVersionGenerator<CipherVersion> aCipherVersionGenerator) Constructs the service with the required services and configuration.

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
CipherVersion	next() Generator method to be implemented by subclasses.
void	remove()
protected abstract <CV extends CipherVersion> CV	toEncryptedCipherVersion(CV aDecyrptedCipherVersion) Hook factory method to be implemented by subclasses.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

AbstractEncryptionService

public AbstractEncryptionService(String aNamespace,
                                 EncryptionServer aEncryptionServer,
                                 CipherVersionGenerator<CipherVersion> aCipherVersionGenerator)

Constructs the service with the required services and configuration.

Parameters:

aNamespace - The name space to which this service belongs

aEncryptionServer - The server to which the service is being "connected"

aCipherVersionGenerator - The generator to be used for generating CipherVersion instances.

Method Detail

next

public CipherVersion next()

Generator method to be implemented by subclasses. Required to create implementation dependent cipher version objects. Retrieves the next valid cipher which may be used for encrypting data.

Specified by:

next in interface Iterator<CipherVersion>

Specified by:

next in interface CipherVersionGenerator<CipherVersion>

Specified by:

next in interface org.refcodes.generator.Generator<CipherVersion>

Returns:

The next valid CipherVersion for encryption.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<CipherVersion>

Specified by:

hasNext in interface org.refcodes.generator.Generator<CipherVersion>

remove

public void remove()

Specified by:

remove in interface Iterator<CipherVersion>

toEncryptedCipherVersion

protected abstract <CV extends CipherVersion> CV toEncryptedCipherVersion(CV aDecyrptedCipherVersion)

Hook factory method to be implemented by subclasses. The provided cipher is to be encrypted (e.g. with the public key of an asymmetric encryption approach) so that an Encryption-Server only receives encrypted data.

Type Parameters:

CV - The type of the CipherVersion to be used.

Parameters:

aDecyrptedCipherVersion - The CipherVersion to be encrypted.

Returns:

The encrypted CipherVersion.