Flexible Session Protocol
draft-gao-flexible-session-protocol-03

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Last updated 2019-10-17
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INTERNET-DRAFT                                                    J. Gao
Intended Status: Experimental                                 Individual
Expires: April 18, 2020                                 October 16, 2019

                       Flexible Session Protocol 
                 draft-gao-flexible-session-protocol-03

Abstract

   FSP is a connection-oriented transport layer protocol that provides
   mobility and multihoming support by introducing the concept of 'upper
   layer thread ID', which is associated with some shared secret that is
   applied with some secure hash or authenticated encryption algorithm
   to protect authenticity of the origin of the FSP packets. It is able
   to provide following services to the upper layer application:

     o  Stream-oriented send-receive with native message boundary
   support      
     o  Ubiquitous authenticated encryption

     o  0-RTT multiplication of connections

     o  On-the-wire compression

Status of this Memo

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

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Gao                      Expires April 18, 2020                 [Page 1]
INTERNET DRAFT         Flexible Session Protocol        October 16, 2019

Copyright and License Notice

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  6
     1.1. Features  . . . . . . . . . . . . . . . . . . . . . . . . .  6
       1.1.1. Transmit Transaction  . . . . . . . . . . . . . . . . .  6
       1.1.2. Transport Layer Mobility Support  . . . . . . . . . . .  7
       1.1.3. Ubiquitous Authenticated Encryption . . . . . . . . . .  7
       1.1.4. 0-RTT Multiplication of Connections . . . . . . . . . .  7
       1.1.5. On-the-wire Compression . . . . . . . . . . . . . . . .  7
     1.2. Requirements Language . . . . . . . . . . . . . . . . . . .  7
     1.3. Conventions . . . . . . . . . . . . . . . . . . . . . . . .  7
   2. Abbreviations and Idioms  . . . . . . . . . . . . . . . . . . .  8
   3. Key Mechanisms  . . . . . . . . . . . . . . . . . . . . . . . . 10
     3.1. Underlying Layer Services Required  . . . . . . . . . . . . 10
       3.1.1. High Mobility . . . . . . . . . . . . . . . . . . . . . 10
       3.1.2. Network Address Change Notification . . . . . . . . . . 11
       3.1.3. Network Congestion Control  . . . . . . . . . . . . . . 11
     3.2. Identifying Connection by Local ULTID . . . . . . . . . . . 12
     3.3. Defending Against Connection Hijacking with ICC . . . . . . 12
     3.4. Synchronizing Key Installation with Transmit Transaction  . 12
     3.5. 0-RTT Connection Multiplication with OOB Packet . . . . . . 13
   4.  Packet Structure . . . . . . . . . . . . . . . . . . . . . . . 14
     4.1. FSP over UDP/IPv4 . . . . . . . . . . . . . . . . . . . . . 14
     4.2. FSP over IPv6 . . . . . . . . . . . . . . . . . . . . . . . 14
     4.3. Generic FSP Header  . . . . . . . . . . . . . . . . . . . . 16
     4.4. FSP Header Signature and Code-Mark-Length Prefix  . . . . . 16
       4.4.1 Operation Code . . . . . . . . . . . . . . . . . . . . . 16
       4.4.2 Major  . . . . . . . . . . . . . . . . . . . . . . . . . 18
       4.4.3 Mark . . . . . . . . . . . . . . . . . . . . . . . . . . 19
       4.4.4 Offset . . . . . . . . . . . . . . . . . . . . . . . . . 19
       4.4.5 Length . . . . . . . . . . . . . . . . . . . . . . . . . 19
 

Gao                      Expires April 18, 2020                 [Page 2]
INTERNET DRAFT         Flexible Session Protocol        October 16, 2019
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