Actors in the ACE Architecture
draft-gerdes-ace-actors-01

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ACE Working Group                                              S. Gerdes
Internet-Draft                                   Universitaet Bremen TZI
Intended status: Informational                             July 04, 2014
Expires: January 5, 2015

                     Actors in the ACE Architecture
                       draft-gerdes-ace-actors-01

Abstract

   Constrained nodes are small devices which are limited in terms of
   processing power, memory, non-volatile storage and transmission
   capacity.  Due to these constraints, commonly used security protocols
   are not easily applicable.  Nevertheless, an authentication and
   authorization solution is needed to ensure the security of these
   devices.

   Due to the limitations of the constrained nodes it is especially
   important to develop a light-weight security solution which is
   adjusted to the relevant security objectives of each participating
   party in this environment.  Necessary security measures must be
   identified and applied where needed.

   In this document, the required security related tasks are identified
   as guidance for the development of authentication and authorization
   solutions for constrained environments.  Based on the tasks, an
   architecture is developed to represent the relationships between the
   logical functional entities involved.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on January 5, 2015.

Gerdes                   Expires January 5, 2015                [Page 1]
Internet-Draft                 ace-actors                      July 2014

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Problem Statement . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Basic Scenario Tasks  . . . . . . . . . . . . . . . . . .   5
     3.2.  Authentication-Related Tasks  . . . . . . . . . . . . . .   5
     3.3.  Authorization-Related Tasks . . . . . . . . . . . . . . .   6
   4.  Actors  . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     4.1.  Constrained Level Actors  . . . . . . . . . . . . . . . .   6
     4.2.  Principal Level Actors  . . . . . . . . . . . . . . . . .   7
     4.3.  Less-Constrained Level Actors . . . . . . . . . . . . . .   8
   5.  Protocol Requirements . . . . . . . . . . . . . . . . . . . .  10
     5.1.  Constrained Level Protocols . . . . . . . . . . . . . . .  10
       5.1.1.  Cross Level Support Protocols . . . . . . . . . . . .  10
     5.2.  Less-Constrained Level Protocols  . . . . . . . . . . . .  11
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  11
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  11
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  11
   Appendix A.  List of Tasks  . . . . . . . . . . . . . . . . . . .  12
     A.1.  Basic Scenario  . . . . . . . . . . . . . . . . . . . . .  13
       A.1.1.  Processing Information  . . . . . . . . . . . . . . .  13
       A.1.2.  Sending Information . . . . . . . . . . . . . . . . .  14
     A.2.  Security-Related Tasks  . . . . . . . . . . . . . . . . .  16
       A.2.1.  Information Authenticity  . . . . . . . . . . . . . .  16
       A.2.2.  Authorization Validation  . . . . . . . . . . . . . .  17
       A.2.3.  Transmission Security . . . . . . . . . . . . . . . .  19
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