BaseKeyAgreementParty

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gnu.javax.crypto.key
Class BaseKeyAgreementParty

java.lang.Object
  gnu.javax.crypto.key.BaseKeyAgreementParty

All Implemented Interfaces:: IKeyAgreementParty

public abstract class BaseKeyAgreementParty
extends java.lang.Object
implements IKeyAgreementParty

A base abstract class to facilitate implementations of concrete key agreement protocol handlers.

Field Summary

protected boolean complete
          Whether the exchange has concluded or not.

protected boolean initialised
          Whether the instance is initialised or not.

protected gnu.java.security.prng.IRandom irnd
          The optional gnu.java.security.prng.IRandom instance to use.

protected java.lang.String name
          The canonical name of the protocol.

private gnu.java.security.util.PRNG prng
          Our default source of randomness.

protected java.security.SecureRandom rnd
          The optional java.security.SecureRandom instance to use.

protected int step
          The current step index of the protocol exchange.

protected static java.math.BigInteger TWO


Constructor Summary

protected BaseKeyAgreementParty(java.lang.String name)


Method Summary

protected abstract void engineInit(java.util.Map attributes)


protected abstract OutgoingMessage engineProcessMessage(IncomingMessage in)


protected abstract void engineReset()


protected abstract byte[] engineSharedSecret()


private gnu.java.security.util.PRNG getDefaultPRNG()


byte[] getSharedSecret()
          Returns the byte array containing the shared secret as generated by this party.

void init(java.util.Map attributes)
          Sets up the instance to operate with specific attributes.

boolean isComplete()
          Returns true if the party in the key agreement protocol exchange has completed its part of the exchange.

java.lang.String name()
          Returns the canonical name of the key agreement protocol.

protected void nextRandomBytes(byte[] buffer)
          Fills the designated byte array with random data.

OutgoingMessage processMessage(IncomingMessage in)
          Processes an incoming message at one end, generating a message that will be processed by the other party(ies).

void reset()
          Resets this instance for re-use with another set of attributes.

Methods inherited from class java.lang.Object

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

Field Detail

TWO

protected static final java.math.BigInteger TWO

name

protected java.lang.String name

The canonical name of the protocol.

initialised

protected boolean initialised

Whether the instance is initialised or not.

step

protected int step

The current step index of the protocol exchange.

complete

protected boolean complete

Whether the exchange has concluded or not.

rnd

protected java.security.SecureRandom rnd

The optional java.security.SecureRandom instance to use.

irnd

protected gnu.java.security.prng.IRandom irnd

The optional gnu.java.security.prng.IRandom instance to use.

prng

private gnu.java.security.util.PRNG prng

Our default source of randomness.

Constructor Detail

BaseKeyAgreementParty

protected BaseKeyAgreementParty(java.lang.String name)

Method Detail