Information-Centric Networking (ICN) Research Challenges
RFC 7927

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Internet Research Task Force (IRTF)                     D. Kutscher, Ed.
Request for Comments: 7927                                           NEC
Category: Informational                                           S. Eum
ISSN: 2070-1721                                         Osaka University
                                                          K. Pentikousis
                                                              Travelping
                                                               I. Psaras
                                                                     UCL
                                                               D. Corujo
                                                  Universidade de Aveiro
                                                               D. Saucez
                                                                   INRIA
                                                              T. Schmidt
                                                             HAW Hamburg
                                                            M. Waehlisch
                                                               FU Berlin
                                                               July 2016

        Information-Centric Networking (ICN) Research Challenges

Abstract

   This memo describes research challenges for Information-Centric
   Networking (ICN), an approach to evolve the Internet infrastructure
   to directly support information distribution by introducing uniquely
   named data as a core Internet principle.  Data becomes independent
   from location, application, storage, and means of transportation,
   enabling or enhancing a number of desirable features, such as
   security, user mobility, multicast, and in-network caching.
   Mechanisms for realizing these benefits is the subject of ongoing
   research in the IRTF and elsewhere.  This document describes current
   research challenges in ICN, including naming, security, routing,
   system scalability, mobility management, wireless networking,
   transport services, in-network caching, and network management.

   This document is a product of the IRTF Information-Centric Networking
   Research Group (ICNRG).

Kutscher, et al.              Informational                     [Page 1]
RFC 7927                     ICN Challenges                    July 2016

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Research Task Force
   (IRTF).  The IRTF publishes the results of Internet-related research
   and development activities.  These results might not be suitable for
   deployment.  This RFC represents the consensus of the Information-
   Centric Networking Research Group of the Internet Research Task Force
   (IRTF).  Documents approved for publication by the IRSG are not a
   candidate for any level of Internet Standard; see Section 2 of RFC
   7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7927.

Copyright Notice

   Copyright (c) 2016 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
   (http://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.

Kutscher, et al.              Informational                     [Page 2]
RFC 7927                     ICN Challenges                    July 2016

Table of Contents

   1. Introduction ....................................................4
   2. Problems with Host-Centric Communications .......................4
   3. ICN Terminology and Concepts ....................................6
      3.1. Terminology ................................................6
      3.2. Concepts ...................................................6
   4. ICN Research Challenges .........................................8
      4.1. Naming, Data Integrity, and Data Origin Authentication .....8
      4.2. Security ..................................................10
           4.2.1. Data Integrity and Origin Authentication ...........10
           4.2.2. Binding NDOs to Real-World Identities ..............11
           4.2.3. Access Control and Authorization ...................12
           4.2.4. Encryption .........................................13
           4.2.5. Traffic Aggregation and Filtering ..................13
           4.2.6. State Overloading ..................................13
           4.2.7. Delivering Data Objects from Replicas ..............14
           4.2.8. Cryptographic Robustness ...........................14