[core] I-D Action: draft-ietf-core-oscore-key-update-02.txt

internet-drafts@ietf.org Mon, 11 July 2022 13:05 UTC

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Date: Mon, 11 Jul 2022 06:05:28 -0700
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Subject: [core] I-D Action: draft-ietf-core-oscore-key-update-02.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Constrained RESTful Environments WG of the IETF.

        Title           : Key Update for OSCORE (KUDOS)
        Authors         : Rikard Höglund
                          Marco Tiloca
  Filename        : draft-ietf-core-oscore-key-update-02.txt
  Pages           : 50
  Date            : 2022-07-11

Abstract:
   Object Security for Constrained RESTful Environments (OSCORE) uses
   AEAD algorithms to ensure confidentiality and integrity of exchanged
   messages.  Due to known issues allowing forgery attacks against AEAD
   algorithms, limits should be followed on the number of times a
   specific key is used for encryption or decryption.  Among other
   reasons, approaching key usage limits requires updating the OSCORE
   keying material before communications can securely continue.

   This document defines how two OSCORE peers must follow these key
   usage limits and what steps they must take to preserve the security
   of their communications.  Also, it specifies Key Update for OSCORE
   (KUDOS), a lightweight procedure that two peers can use to update
   their keying material and establish a new OSCORE Security Context.
   Finally, this document specifies a method that two peers can use to
   update their OSCORE identifiers, as a stand-alone procedure or
   embedded in a KUDOS execution.  Thus, this document updates RFC 8613.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-core-oscore-key-update/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-core-oscore-key-update-02.html

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-core-oscore-key-update-02


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts

[core] I-D Action: draft-ietf-core-oscore-key-upd… internet-drafts