org.refcodes.forwardsecrecy.impls

Class InMemoryDecryptionServerImpl

java.lang.Object

org.refcodes.forwardsecrecy.impls.InMemoryDecryptionServerImpl

All Implemented Interfaces:

DecryptionServer

public class InMemoryDecryptionServerImpl
extends Object
implements DecryptionServer

The InMemoryDecryptionServerImpl is a non-persisting implementation of the DecryptionServer managing the CipherVersion instances in memory only. This implementation provides means to easily set up a quick and dirty test setup. The InMemoryDecryptionServerImpl is the counterpart of the InMemoryEncryptionServerImpl which both work (not doing any persistence) hand in hand.

Constructor Summary

Constructors

Constructor and Description
InMemoryDecryptionServerImpl()

Method Summary

Modifier and Type	Method and Description
protected void	addCipherVersion(String aNamespace, CipherVersion aCipherVersion) Adds a cipher version to the server.
List<CipherVersion>	getCipherVersions(String aNamespace, String aMessage, String aSignature) Returns the currently available cipher versions.

Methods inherited from class java.lang.Object

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

Constructor Detail

InMemoryDecryptionServerImpl

public InMemoryDecryptionServerImpl()

Method Detail

getCipherVersions

public List<CipherVersion> getCipherVersions(String aNamespace,
                                             String aMessage,
                                             String aSignature)

Description copied from interface: DecryptionServer

Returns the currently available cipher versions. An implementation might just make use of an ObjectOutputStream. Though the stream is encrypted with the public key of the message signer. ------------------------------------------------------------------------- Another approach might not return a stream, it might return a list containing the cipher versions with the ciphers being encrypted by the public key. Or a stream is returned which is not encrypted but the ciphers in the cipher versions carried by the stream. -------------------------------------------------------------------------

Specified by:

getCipherVersions in interface DecryptionServer

Parameters:

aNamespace - The namespace for which to get the cipher versions.

aMessage - A message to be signed by the requester of the cipher version.

aSignature - The signature of the requester so that the according public key for encryption can be determined and the origin can be verified.

Returns:

A list as with the currently known cipher versions. The ciphers contained therein might be encrypted!

addCipherVersion

protected void addCipherVersion(String aNamespace,
                                CipherVersion aCipherVersion)
                         throws CipherUidAlreadyInUseException

Adds a cipher version to the server. Bad hack for testing purposes.

Parameters:

aNamespace - The namespace for which to add the cipher

aCipherVersion - The CipherVersion to be added.

aCipherVersion - The cipher version with cipher UID and cipher.

Throws:

CipherUidAlreadyInUseException - in case the given cipher UID has already been used.