Fast route attestation on AS Path Segment
draft-yang-sidr-fra-04

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Internet Engineering Task Force                                Yang, Ed.
Internet-Draft                                                       Shi
Intended status: Informational                                     Xiang
Expires: September 12, 2017                                         Wang
                                                                      Wu
                                                                     Yin
                                                          Tsinghua Univ.
                                                          March 11, 2017

               Fast route attestation on AS Path Segment
                         draft-yang-sidr-fra-04

Abstract

   This draft proposes Fast Route Attestation (FRA), a mechanism for
   securing AS paths and preventing prefix hijacking by signing and
   verifying critical AS path segments (i.e., adjacent AS triples along
   AS path).  When full-deployed, FRA can achieve similar level of
   security as BGPSec, but with much higher efficiency.  When partial-
   deployed, FRA offers more security benefits than BGPSec.

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Yang, et al.           Expires September 12, 2017               [Page 1]
Internet-Draft                     FRA                        March 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  FRA: Fast Route Attestation . . . . . . . . . . . . . . . . .   5
     4.1.  Neighbor Based Importing and Exporting  . . . . . . . . .   5
     4.2.  Signing Critical AS Path Segments efficiently . . . . . .   6
     4.3.  More benefits in partial-deployment scenario  . . . . . .   8
     4.4.  Other supports to FRA . . . . . . . . . . . . . . . . . .   8
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   7.  Conclusions . . . . . . . . . . . . . . . . . . . . . . . . .   9
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   In order to secure inter-domain routing, several extensions of BGP
   have been proposed, which fall into two categories: anomaly detection
   and cryptographic based authentication.  However, anomaly detection
   approaches [Whisper] [PGBGP] only detect and report routing
   anomalies.  They can not guarantee security in advance.
   Cryptographic approaches, like S-BGP [S-BGP] and BGPSec [RFC7353],
   use the Public Key Infrastructure (PKI) to authenticate routing
   announcements.  However, they may consume significant resources of
   computation and storage.  The other solutions either compromise in
   the security [IRV] [I-D.ng-sobgp-bgp-extensions] [psBGP] [SPV], or
   bring in more complexity on certification distribution [SA].

   Towards these unsolved issues, we propose an efficient approach, FRA
   (Fast Route Attestation), to secure AS path.  Through signing and
   verifying critical AS path segments (i.e., adjacent AS triples along
   AS path), FRA can achieve similar level of security as S-BGP/BGPSec,
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