J-PAKE: Password Authenticated Key Exchange by Juggling
draft-hao-jpake-05

Document Type Active Internet-Draft (individual)
Last updated 2016-11-14
Stream ISE
Intended RFC status Informational
Formats plain text xml pdf html bibtex
Stream ISE state In ISE Review
Consensus Boilerplate Unknown
Document shepherd No shepherd assigned
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                        F. Hao, Ed.
Internet-Draft                                 Newcastle University (UK)
Intended status: Informational                         November 14, 2016
Expires: May 18, 2017

        J-PAKE: Password Authenticated Key Exchange by Juggling
                           draft-hao-jpake-05

Abstract

   This document specifies a Password Authenticated Key Exchange by
   Juggling (J-PAKE) protocol.  This protocol allows the establishment
   of a secure end-to-end communication channel between two remote
   parties over an insecure network solely based on a shared password,
   without requiring a Public Key Infrastructure (PKI) or any trusted
   third party.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 18, 2017.

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of

Hao                       Expires May 18, 2017                  [Page 1]
Internet-Draft                   J-PAKE                    November 2016

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
     1.2.  Notations . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  J-PAKE over Finite Field  . . . . . . . . . . . . . . . . . .   4
     2.1.  Protocol Setup  . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Two-Round Key Exchange  . . . . . . . . . . . . . . . . .   5
     2.3.  Computational Cost  . . . . . . . . . . . . . . . . . . .   6
   3.  J-PAKE over Elliptic Curve  . . . . . . . . . . . . . . . . .   7
     3.1.  Protocol Setup  . . . . . . . . . . . . . . . . . . . . .   7
     3.2.  Two-Round Key Exchange  . . . . . . . . . . . . . . . . .   7
     3.3.  Computational Cost  . . . . . . . . . . . . . . . . . . .   8
   4.  Three-Pass Variant  . . . . . . . . . . . . . . . . . . . . .   8
   5.  Key Confirmation  . . . . . . . . . . . . . . . . . . . . . .   9
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  12
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  12
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  13
     9.3.  URIs  . . . . . . . . . . . . . . . . . . . . . . . . . .  14
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   Password-Authenticated Key Exchange (PAKE) is a technique that aims
   to establish secure communication between two remote parties solely
   based on their shared password, without relying on a Public Key
   Infrastructure or any trusted third party [BM92].  The first PAKE
   protocol, called EKE, was proposed by Steven Bellovin and Michael
   Merrit in 1992 [BM92].  Other well-known PAKE protocols include SPEKE
   (by David Jablon in 1996) [Jab96] and SRP (by Tom Wu in 1998) [Wu98].
   SRP has been revised several times to address reported security and
   efficiency issues.  In particular, the version 6 of SRP, commonly
   known as SRP-6, is specified in [RFC5054].

   This document specifies a PAKE protocol called Password Authenticated
   Key Exchange by Juggling (J-PAKE), which was designed by Feng Hao and
   Peter Ryan in 2008 [HR08].

   There are a few factors that may be considered in favor of J-PAKE.
   First, J-PAKE has security proofs, while equivalent proofs are
Show full document text