Quick and Dirty Security for GRASP
draft-carpenter-anima-quads-grasp-01

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Last updated 2019-10-23 (latest revision 2019-10-15)
Stream (None)
Intended RFC status (None)
Formats pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                       B. Carpenter
Internet-Draft                                         Univ. of Auckland
Intended status: Informational                          October 24, 2019
Expires: April 26, 2020

                   Quick and Dirty Security for GRASP
                  draft-carpenter-anima-quads-grasp-01

Abstract

   A secure substrate is required by the Generic Autonomic Signaling
   Protocol (GRASP) used by Autonomic Service Agents.  This document
   describes QUADS, a QUick And Dirty Security method using symmetric
   cryptography and preconfigured keys or passwords.  It also describes
   a simplistic QUADS Key Infrastructure based on asymmetric
   cryptography used over insecure instances of GRASP.

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 26, 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of

Carpenter                Expires April 26, 2020                 [Page 1]
Internet-Draft               QUADS for GRASP                October 2019

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  QUick And Dirty Security Method . . . . . . . . . . . . . . .   2
   3.  QUick And Dirty Security Key Infrastructure . . . . . . . . .   3
   4.  Implementation Status [RFC Editor: please remove] . . . . . .   6
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   7
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   7
   Appendix A.  Change log [RFC Editor: Please remove] . . . . . . .   8
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   As defined in [I-D.ietf-anima-reference-model], the Autonomic Service
   Agent (ASA) is the atomic entity of an autonomic function, and it is
   instantiated on autonomic nodes.  When ASAs communicate with each
   other, they should use the Generic Autonomic Signaling Protocol
   (GRASP) [I-D.ietf-anima-grasp].  It is essential that such
   communication is strongly secured to avoid malicious interference
   with the Autonomic Network Infrastructure (ANI).

   For this reason, GRASP must run over a secure substrate that is
   isolated from regular data plane traffic.  This substrate is known as
   the Autonomic Control Plane (ACP).  A method for constructing an ACP
   at the network layer is described in
   [I-D.ietf-anima-autonomic-control-plane].  Scenarios for link layer
   ACPs are discussed in [I-D.carpenter-anima-l2acp-scenarios].  The
   present document describes a simple method of emulating an ACP
   immediately above the transport layer, known as QUADS (QUick And
   Dirty Security) for GRASP.

   It also describes a simplistic key infrastructure known as QUADSKI,
   using asymmetric cryptography embedded in GRASP objectives used over
   insecure instances of GRASP.

2.  QUick And Dirty Security Method

   Every GRASP message, whether unicast or multicast, is encrypted
   immediately before transmission, and decrypted immediately after
   reception, using the same symmetric encryption algorithm and domain-
   wide shared keys.  This applies to all unicast and multicast messages

Carpenter                Expires April 26, 2020                 [Page 2]
Internet-Draft               QUADS for GRASP                October 2019

   sent over either UDP or TCP.  Typically encryption will take place
   immediately after a message is encoded as CBOR [RFC7049], and
Show full document text