[Cfrg] CFRG@IETF90 summary

"Paterson, Kenny" <Kenny.Paterson@rhul.ac.uk> Thu, 24 July 2014 18:58 UTC

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From: "Paterson, Kenny" <Kenny.Paterson@rhul.ac.uk>
To: "cfrg@irtf.org" <cfrg@irtf.org>, "saag@ietf.org" <saag@ietf.org>
Thread-Topic: CFRG@IETF90 summary
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Date: Thu, 24 Jul 2014 18:58:21 +0000
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Subject: [Cfrg] CFRG@IETF90 summary
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CFRG met at IETF90 this week in Toronto. The agenda and meeting materials
can be found at


The main focus of our meeting was presentations and discussions in
response to the TLS WG's request for recommendations for new elliptic
curves (see www.ietf.org/mail-archive/web/cfrg/current/msg04655.html for
details of the request). Tanja Lange from TU Eindhoven set the scene by
giving a tutorial on ECC, old and new. Brian LaMacchia and Craig Costello
from Microsoft talked about NUMS curves. Dan Bernstein from UIC/TU
Eindhoven spoke about Curve25519 and friends. There was active discussion
on the TLS WG's request during and after the presentations.

Yoav Nir (Check Point) presented on AEAD built from ChaCha20+Poly1305 for
TLS. CFRG has adopted a document describing the latter scheme, and the
CFRG chairs will soon receive a formal request from TLS WG to review this
document. The document itself can be found at

We also had a presentation from David McGrew (Cisco Systems) on hash-based
signatures, relating to the Internet Draft
www.ietf.org/id/draft-mcgrew-hash-sigs-02.txt. The CFRG chairs will
formally ask CFRG if we should adopt the document as a RG document.

Rifaat Shekh-Yusef gave a presentation on Challenge-Response mechanisms.

Under AoB, Wendy Seltzer, representing W3C, asked CFRG to consider
creating a "per-algorithm" security considerations Informational RFC for
the algorithms listed in the W3C Web Cryptography API
(www.w3.org/TR/WebCryptoAPI). In principle, the CFRG will sponsor this
work; the initial Internet Draft will be produced by Graham Steel (INRIA),
with feedback from Rich Salz (Akamai) and help from the W3C staff. Once a
draft is available, the CFRG chairs will formally ask the CFRG list to
consider sponsoring this document.

Kenny Paterson
(for the CFRG chairs)