spki
Class CBACChainReducer

java.lang.Object
  |
  +--spki.CBACChainReducer

public final class CBACChainReducer

extends Object

spki CBACChainReducer class.

Version:

$Id: CBACChainReducer.java,v 1.9 2002/08/07 07:20:52 tep Exp $

Author:

Tep Narula <tep@win.trlabs.ca>

Field Summary

private static String

__ME This class's full name.

Constructor Summary

private

CBACChainReducer() Can't instantiate me.

Method Summary

static Capability5Tuple	bottomUpPass(Capability5Tuple[] input) The Round-trip Reduction algorithm's bottom-up round.
static Tuple[]	certs2Tuples(Sequence seq) Map a given sequence of certificates into a list of tuples.
static Capability5Tuple[]	reduceName(Tuple[] input) Where applicable, reduce named-subject(s) to principal(s) using the Name Reduction Rules.
static Capability5Tuple	roundTripReduce(Capability5Tuple[] input) An implementation of the Round-trip Reduction algorithm.
static Capability5Tuple[]	topDownPass(Capability5Tuple[] input) The Round-trip Reduction algorithm's top-down round.

Methods inherited from class java.lang.Object

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

Field Detail

__ME

private static final String __ME

This class's full name.

Constructor Detail

CBACChainReducer

private CBACChainReducer()

Can't instantiate me. Thsi is a tool class, we don't want to create an instance!

Method Detail

certs2Tuples

public static final Tuple[] certs2Tuples(Sequence seq)
                                  throws SPKIException

Map a given sequence of certificates into a list of tuples.

reduceName

public static final Capability5Tuple[] reduceName(Tuple[] input)
                                           throws SPKIException,
                                                  ReductionException

Where applicable, reduce named-subject(s) to principal(s) using the Name Reduction Rules.

See Also:

Capability5Tuple.reduce(Name4Tuple)

roundTripReduce

public static final Capability5Tuple roundTripReduce(Capability5Tuple[] input)
                                              throws SPKIException,
                                                     ReductionException

An implementation of the Round-trip Reduction algorithm.

See Also:

topDownPass(Capability5Tuple[]), bottomUpPass(Capability5Tuple[])

topDownPass

public static final Capability5Tuple[] topDownPass(Capability5Tuple[] input)
                                            throws SPKIException,
                                                   ReductionException

The Round-trip Reduction algorithm's top-down round.

See Also:

Capability5Tuple.reduce(Capability5Tuple)

bottomUpPass

public static final Capability5Tuple bottomUpPass(Capability5Tuple[] input)
                                           throws SPKIException,
                                                  ReductionException

The Round-trip Reduction algorithm's bottom-up round. TODO: deal with authorization chains that branch out threshold subjects on both side of the tree.

See Also:

Capability5Tuple.tReduce(Capability5Tuple), Tuple.tEliminate(Subject)