Network Tokens
draft-yiakoumis-network-tokens-01

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TBD                                                         Y. Yiakoumis
Internet-Draft                                      Selfie Networks, Inc
Intended status: Standards Track                              N. McKeown
Expires: December 17, 2020                           Stanford University
                                                             F. Sorensen
                                      Norwegian Communications Authority
                                                           June 15, 2020

                             Network Tokens
                   draft-yiakoumis-network-tokens-01

Abstract

   Network tokens is a method for endpoints to explicitly and securely
   coordinate with networks about how their traffic is treated.  They
   are inserted by endpoints in existing protocols, interpreted by
   trusted networks, and may be signed or encrypted to meet security and
   privacy requirements.  Network tokens provide a means for network
   operators to expose datapath services (such as a zero-rating service,
   a user-driven QoS service, or a firewall whitelist), and for end
   users and application providers to access such services.  Network
   tokens are inspired and derived by existing security tokens (like JWT
   and CWT), and borrow several of their core ideas along with security
   and privacy properties.

Status of This Memo

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   This Internet-Draft will expire on December 17, 2020.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Yiakoumis, et al.       Expires December 17, 2020               [Page 1]
Internet-Draft                networktokens                    June 2020

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Network Token Overview  . . . . . . . . . . . . . . . . .   3
   2.  Motivation  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Use cases Overview  . . . . . . . . . . . . . . . . . . .   5
       2.1.1.  Zero Rating . . . . . . . . . . . . . . . . . . . . .   5
       2.1.2.  Firewall Whitelist  . . . . . . . . . . . . . . . . .   6
       2.1.3.  QoS . . . . . . . . . . . . . . . . . . . . . . . . .   7
     2.2.  Existing mechanisms . . . . . . . . . . . . . . . . . . .   8
       2.2.1.  DiffServ  . . . . . . . . . . . . . . . . . . . . . .   8
       2.2.2.  Deep Packet Inspection  . . . . . . . . . . . . . . .   8
     2.3.  Requirements and Challenges . . . . . . . . . . . . . . .   9
       2.3.1.  Integration overhead  . . . . . . . . . . . . . . . .   9
       2.3.2.  Detection Accuracy  . . . . . . . . . . . . . . . . .  10
       2.3.3.  Fraud Prevention  . . . . . . . . . . . . . . . . . .  11
       2.3.4.  Implementing user-centric control . . . . . . . . . .  11
       2.3.5.  Privacy . . . . . . . . . . . . . . . . . . . . . . .  12
   3.  Representation  . . . . . . . . . . . . . . . . . . . . . . .  12
   4.  Contents  . . . . . . . . . . . . . . . . . . . . . . . . . .  13
     4.1.  Network Token Common fields . . . . . . . . . . . . . . .  13
       4.1.1.  'iss' (Issuer) field  . . . . . . . . . . . . . . . .  13
       4.1.2.  "sub" (Subject) field . . . . . . . . . . . . . . . .  13
       4.1.3.  "exp" (Expiration Time) field . . . . . . . . . . . .  13
       4.1.4.  "iat" (Issued At) field . . . . . . . . . . . . . . .  14
       4.1.5.  "nti" field (Network Token ID) field  . . . . . . . .  14
       4.1.6.  "bip" field (Bound IP) field  . . . . . . . . . . . .  14
   5.  Network Token Format  . . . . . . . . . . . . . . . . . . . .  14
   6.  Example Network Tokens  . . . . . . . . . . . . . . . . . . .  15
     6.1.  Application Token . . . . . . . . . . . . . . . . . . . .  15
     6.2.  User-centric Token  . . . . . . . . . . . . . . . . . . .  16