Network Tokens
draft-yiakoumis-network-tokens-01
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.
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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
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