Re: [TLS] Fw: New Version Notification for draft-katagi-tls-clefia-00.txt
Satoru Kanno <kanno.satoru@po.ntts.co.jp> Tue, 05 July 2011 03:01 UTC
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Date: Tue, 05 Jul 2011 12:00:46 +0900
From: Satoru Kanno <kanno.satoru@po.ntts.co.jp>
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To: Masanobu Katagi <Masanobu.Katagi@jp.sony.com>
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Cc: shiho.moriai@jp.sony.com, tls@ietf.org
Subject: Re: [TLS] Fw: New Version Notification for draft-katagi-tls-clefia-00.txt
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Hi Masanobu, I have two comments for your draft. [For IPR statement] I can't find an IPR statement on CLEFIA for TLS when searching for that draft on the IPR Disclosure search page: https://datatracker.ietf.org/ipr/search/?option=document_search&document_search=draft-katagi-tls-clefia In the case of Camellia, we submitted the IPR statement for TLS as a following: https://datatracker.ietf.org/ipr/41/ Since CLEFIA is patented by SONY, I believe you need to submit an IPR disclosure for this document. [For ciphersuites with SHA-1] Are you really suggesting that CLEFIA be used with SHA-1? NIST is saying not to use SHA-1 very soon. I believe these suites should be removed because RFC 6209 and new I-D on Camellia are not defined on these suites recently. Of course, I checked security considerations for ciphersuites with SHA-1 in your draft. What do you and TLS folks think of these ciphersuites? Regards, Satoru (2011/07/05 9:33), Masanobu Katagi wrote: > Dear all, > > We have submitted the Internet draft that defines cipher suites to support CLEFIA in TLS. > http://tools.ietf.org/id/draft-katagi-tls-clefia-00.txt > > CLEFIA is a 128-bit block cipher presented at FSE2007 and it is now used in commercial products. > The algorithm of CLEFIA was published as RFC6114 in March 2011. > CLEFIA is a lightweight block cipher compared with AES, Camellia, and SEED. > We believe that CLEFIA will contribute to the Internet of Things as a lightweight cipher algorithm. > > The security and performance of CLEFIA have been evaluated through the CRYPTREC project > which evaluates and monitors the security of Japan e-Government recommended ciphers. > It also has been submitted to the ISO/IEC standard (ISO/IEC 29192, Lightweight cryptography) and it's > in the Final Draft International Standard. > > Any comments on this draft would be appreciated. > > Best regards, > Masanobu Katagi > Sony Corporation > > Forwarded by Masanobu Katagi<Masanobu.Katagi@jp.sony.com> > ----------------------- Original Message ----------------------- > From: "internet-drafts@ietf.org"<internet-drafts@ietf.org> > To: "Katagi, Masanobu"<Masanobu.Katagi@jp.sony.com> > Cc: "Katagi, Masanobu"<Masanobu.Katagi@jp.sony.com>, > "Moriai, Shiho"<Shiho.Moriai@jp.sony.com> > Date: Mon, 4 Jul 2011 17:51:44 +0900 > Subject: New Version Notification for draft-katagi-tls-clefia-00.txt > ---- > > A new version of I-D, draft-katagi-tls-clefia-00.txt has been successfully submitted by Masanobu Katagi and posted to the IETF repository. > > Filename: draft-katagi-tls-clefia > Revision: 00 > Title: CLEFIA Cipher Suites for Transport Layer Security (TLS) > Creation date: 2011-07-04 > WG ID: Individual Submission > Number of pages: 16 > > Abstract: > This document specifies a set of cipher suites for the Transport > Security Layer (TLS) protocol to support the CLEFIA encryption > algorithm as a block cipher. CLEFIA is a lightweight block cipher > and suitable for constrained devices. > > > > > The IETF Secretariat > > > --------------------- Original Message Ends -------------------- > > > _______________________________________________ > TLS mailing list > TLS@ietf.org > https://www.ietf.org/mailman/listinfo/tls > -- Satoru Kanno Security Business Unit Mobile and Security Solution Business Group NTT Software Corporation e-mail: kanno.satoru@po.ntts.co.jp
- [TLS] Fw: New Version Notification for draft-kata… Masanobu Katagi
- Re: [TLS] Fw: New Version Notification for draft-… Satoru Kanno
- Re: [TLS] Fw: New Version Notification for draft-… Masanobu Katagi
- Re: [TLS] Fw: New Version Notification for draft-… Andre Silaghi
- Re: [TLS] Fw: New Version Notification for draft-… Nikos Mavrogiannopoulos
- Re: [TLS] Fw: New Version Notification for draft-… Peter Gutmann
- Re: [TLS] Fw: New Version Notification for draft-… Andre Silaghi
- Re: [TLS] Fw: New Version Notification for draft-… Geoffrey Keating
- Re: [TLS] Fw: New Version Notification for draft-… Masanobu Katagi
- Re: [TLS] New Version Notification for draft-kata… Masanobu Katagi
- Re: [TLS] New Version Notification for draft-kata… Masanobu Katagi
- [TLS] Review of draft-katagi-tls-clefia-01.txt Masanobu Katagi