[TLS] FW: New Version Notification for draft-jay-tls-psk-identity-extension-02.txt

[Raja ashok <[e-mail]>]

Hi All

A new extension is proposed for [D]TLS1.2 and its lower version(not for [D]TLS1.3), to send PSKID in client hello msg instead of client key exchange msg. Using this extension, client can send its list of PSKIDs to server in its hello msg and server can select any one of them and respond in its hello msg. 
    - With the help of this extn, PSK cipher handshake can be completed in 1RTT. Messages exchanged are similar to resumption.
    - For DHE_PSK, RSA_PSK and ECDHE_PSK ciphers, PSKID in client hello msg gives additional information to server for cipher negotiation. If unknown PSKIDs are present, then server can select any NON PSK cipher or fail at that place only (instead of failing in finished message verification).

Already we received interest and review comments from Nikos Mavrogiannopoulos, David Woodhouse and Andreas Walz. Based on that we have submitted the 3rd version of this document. 
I am requesting other members of this group also to look into and provide comments for further improvements.

Regards,
Raja Ashok V K
Huawei Technologies
Bangalore, India
http://www.huawei.com 

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-----Original Message-----
From: [e-mail] [mailto:[e-mail]] 
Sent: 17 December 2016 04:11
To: Raja ashok; Raja ashok; Jayaraghavendran Kuppannan
Subject: New Version Notification for draft-jay-tls-psk-identity-extension-02.txt


A new version of I-D, draft-jay-tls-psk-identity-extension-02.txt
has been successfully submitted by Raja Ashok V K and posted to the IETF repository.

Name:		draft-jay-tls-psk-identity-extension
Revision:	02
Title:		TLS/DTLS PSK Identity Extension
Document date:	2016-12-15
Group:		Individual Submission
Pages:		10
URL:            https://www.ietf.org/internet-drafts/draft-jay-tls-psk-identity-extension-02.txt
Status:         https://datatracker.ietf.org/doc/draft-jay-tls-psk-identity-extension/
Htmlized:       https://tools.ietf.org/html/draft-jay-tls-psk-identity-extension-02
Diff:           https://www.ietf.org/rfcdiff?url2=draft-jay-tls-psk-identity-extension-02

Abstract:
   Pre-Shared Key (PSK) based Key Exchange Mechanism is primarily used
   in constrained environments where resource intensive Asymmetric
   Cryptography cannot be used. In the Internet of Things (IoT)
   deployments, constrained devices are commonly used for collecting
   data via sensors for use in home automation, smart energy etc. In
   this context, DTLS is being considered as the primary protocol for
   communication security at the application layer and in some cases, it
   is also being considered for network access authentication.

   This document provides a specification for a new extension for
   Optimizing DTLS and TLS Handshake when the Pre-Shared Key (PSK) based
   Key Exchange is used. This extension is aimed at reducing the number
   of messages exchanged and the RTT of the TLS & DTLS Handshakes.

                                                                                  
Hi, 

I am submitting my 3rd version of our draft(draft-jay-tls-psk-identity-extension) in TLS working group. 

Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat