Authentication by Physical Layer Features
draft-linning-authentication-physical-layer-00

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Last updated 2018-10-08
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Internet Engineering Task Force
Internet-Draft
Intended status: Informational                      Southeast University
Expires: April 11, 2019                                  October 8, 2018

               Authentication by Physical Layer Features
             draft-linning-authentication-physical-layer-00

Abstract

   This document proposes an authentication method using physical layer
   features from terminal unit.  This document assumes that the reader
   is familiar with some concepts and details regarding physical layer
   security.

Status of This Memo

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

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   This Internet-Draft will expire on April 11, 2019.

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   Copyright (c) 2018 IETF Trust and the persons identified as the
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                         Expires April 11, 2019                 [Page 1]
Internet-Draft                    APLE                      October 2018

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Applicability . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Physical layer feature extraction . . . . . . . . . . . .   3
     2.2.  Physical Layer Feature based Authentication . . . . . . .   3
   3.  Physical Layer Feature Extraction . . . . . . . . . . . . . .   3
   4.  Physical Layer Feature based Authentication . . . . . . . . .   4
   5.  Example . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   6
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   6
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   The classical device authentication method includes MAC address, pre-
   shared key or digital certificate.  However, the MAC address is easy
   to be imitated, which can hardly ensure the security.  The security
   of the pre-shared key and digital certificate is mainly due to the
   strength of the digital key and authentication algorithms.

   Physical layer feature based device identification provides a
   physical layer security protection for networks.  Utilizing the
   inherent physical layer feature of terminal unit, it is possible to
   realize identity authentication via only the received waveform.

   It has been demonstrated that physical layer feature owns uniqueness
   and persistence, which could be used for terminal unit
   identification.  The physical layer feature could be obtained via
   transient feature extraction, spectrum feature extraction or
   modulation feature extraction.  [Ref_1] After that, gateway could
   identify the identity of the terminal unit via the received signal
   waveforms by identification algorithms.

1.1.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

                         Expires April 11, 2019                 [Page 2]
Internet-Draft                    APLE                      October 2018

2.  Applicability

   This mechanism authenticates the identity of the terminal unit by
   physical layer features, which is suitable for wireless, wired and
   optical networks.

   When network node transmits message to other network nodes, the
   binary message is transformed to analogical signal in physical layer.
   This physical layer signal includes the unique physical layer feature
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