Re: [TLS] Fw: New Version Notification for draft-katagi-tls-clefia-00.txt

Masanobu Katagi <Masanobu.Katagi@jp.sony.com> Wed, 06 July 2011 09:46 UTC

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Date: Wed, 06 Jul 2011 18:48:01 +0900
From: Masanobu Katagi <Masanobu.Katagi@jp.sony.com>
To: Nikos Mavrogiannopoulos <nmav@gnutls.org>
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Subject: Re: [TLS] Fw: New Version Notification for draft-katagi-tls-clefia-00.txt
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Hi Nikos,

Our point is that lightweight ciphers contribute to efficient implementations 
and lower energy consumption in total
because, even if combined with non-lightweight primitives such as RSA and DH,
they are effective for encryption and MAC in TLS communication.

Best regards,
Masanobu Katagi

On Tue, 5 Jul 2011 16:46:23 +0900
Nikos Mavrogiannopoulos <nmav@gnutls.org>; wrote:
> On Tue, Jul 5, 2011 at 3:33 AM, Masanobu Katagi
> <Masanobu.Katagi@jp.sony.com>; 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.
> 
> Hello,
>  What is the use-case of this cipher in TLS? In particular what is the
> point of having a lightweight
> cipher combined with non-lightweight primitives such as RSA and Diffie
> Hellman key exchange,
> and SHA MACs?
> 
> regards,
> Nikos
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