CCNx Key Exchange Protocol Version 1.0
draft-wood-icnrg-ccnxkeyexchange-02

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icnrg                                                           M. Mosko
Internet-Draft                                                   E. Uzun
Intended status: Experimental                                       PARC
Expires: September 14, 2017                                      C. Wood
                                         University of California Irvine
                                                          March 13, 2017

                 CCNx Key Exchange Protocol Version 1.0
                draft-wood-icnrg-ccnxkeyexchange-02

Abstract

   This document specifies Version 1.0 of the CCNx Key Exchange (CCNxKE)
   protocol.  The CCNxKE protocol allows two peers to establish a
   shared, forward-secure key for secure and confidential communication.
   The protocol is designed to prevent eavesdropping, tampering, and
   message forgery between two peers.  It is also designed to minimize
   the number of rounds required to establish a shared key.  In the
   worst case, it requires two RTTs between a consumer and producer to
   establish a shared key.  In the best case, one RTT is required before
   sending any application data.  This document outlines how to derive
   the keys used to encrypt traffic for a session and shows how session
   information is exchanged between a consumer and producer using
   message encapsulation.

Status of This Memo

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Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Mosko, et al.          Expires September 14, 2017               [Page 1]
Internet-Draft                   CCNxKE                       March 2017

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   than English.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Conventions and Terminology . . . . . . . . . . . . . . .   4
   2.  Goals . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   3.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   4.  Presentation Language . . . . . . . . . . . . . . . . . . . .   7
   5.  CCNxKE Overview . . . . . . . . . . . . . . . . . . . . . . .   7
     5.1.  Connection Establishment Latency  . . . . . . . . . . . .   7
     5.2.  Connection Migration and Resumption . . . . . . . . . . .   7
     5.3.  Re-Transmissions, Timeouts, and Replay Prevention . . . .   8
     5.4.  Loss Sensitivity  . . . . . . . . . . . . . . . . . . . .   8
   6.  The CCNxKE Protocol . . . . . . . . . . . . . . . . . . . . .   9
     6.1.  Round Overview  . . . . . . . . . . . . . . . . . . . . .   9
     6.2.  Round 1 . . . . . . . . . . . . . . . . . . . . . . . . .  12
     6.3.  Round 2 . . . . . . . . . . . . . . . . . . . . . . . . .  14
     6.4.  Round 3 . . . . . . . . . . . . . . . . . . . . . . . . .  17
   7.  Alternative Exchanges . . . . . . . . . . . . . . . . . . . .  17
     7.1.  One-RTT Exchange  . . . . . . . . . . . . . . . . . . . .  18
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