gnu.crypto.key.srp6
Class SRP6SaslClient

java.lang.Object
  gnu.crypto.key.BaseKeyAgreementParty
      gnu.crypto.key.srp6.SRP6KeyAgreement
          gnu.crypto.key.srp6.SRP6TLSClient
              gnu.crypto.key.srp6.SRP6SaslClient

All Implemented Interfaces:

IKeyAgreementParty

public class SRP6SaslClient

extends SRP6TLSClient

A variation of the SRP-6 protocol as used in the SASL-SRP mechanism, for the User (client side).

In this alternative, the exchange goes as follows:

    C -> S:  I                      (identifies self)
    S -> C:  N, g, s, B = 3v + g^b  (sends salt, b = random number)
    C -> S:  A = g^a                (a = random number)
 

All elements are computed the same way as in the standard version.

Reference:

1. Secure Remote Password Authentication Mechanism
   K. Burdis, R. Naffah.
2. SRP Protocol Design
   Thomas J. Wu.

Version:

$Revision: 1.2 $

Field Summary

Fields inherited from class gnu.crypto.key.srp6.SRP6KeyAgreement

g, GENERATOR, HASH_FUNCTION, HOST_PASSWORD_DB, K, mda, N, SHARED_MODULUS, SOURCE_OF_RANDOMNESS, THREE, USER_IDENTITY, USER_PASSWORD

Fields inherited from class gnu.crypto.key.BaseKeyAgreementParty

complete, initialised, name, rnd, step, TWO

Constructor Summary

SRP6SaslClient()

Method Summary

protected OutgoingMessage

computeSharedSecret(IncomingMessage in)

Methods inherited from class gnu.crypto.key.srp6.SRP6TLSClient

engineInit, engineProcessMessage, engineReset

Methods inherited from class gnu.crypto.key.srp6.SRP6KeyAgreement

engineSharedSecret, uValue

Methods inherited from class gnu.crypto.key.BaseKeyAgreementParty

getSharedSecret, init, isComplete, name, nextRandomBytes, processMessage, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

SRP6SaslClient

public SRP6SaslClient()

Method Detail

computeSharedSecret

protected OutgoingMessage computeSharedSecret(IncomingMessage in)
                                       throws KeyAgreementException

Overrides:

computeSharedSecret in class SRP6TLSClient

Throws:

KeyAgreementException