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Re: [TLS] I-D Action: draft-ietf-tls-ctls-00.txt

Raja Ashok <rashok.ietf@gmail.com> Tue, 28 April 2020 17:24 UTC

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From: Raja Ashok <rashok.ietf@gmail.com>
Date: Tue, 28 Apr 2020 22:54:27 +0530
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Subject: Re: [TLS] I-D Action: draft-ietf-tls-ctls-00.txt
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Some suggestion from my side for cTLS

1. Currently supported ciphersuites in cTLS are only 5. In that case I feel
changing 2 byte "CipherSuite" also to "varint" will help to reduce few more
bytes on wire. Similarly for "NamedGroup" and "SignatureScheme".

2. In section 5.1, last sentence in the explanation of "version" should
contain "SeverHello.extensions"

   version (integer):  indicates that both sides agree to the single TLS
      version specified by the given integer value (772 == 0x0304 for
      TLS 1.3).  The supported_versions extension is omitted from
      ClientHello.extensions and reconstructed in the transcript as a
      single-valued list with the specified value.  The
      supported_versions extension is omitted from
      ClientHello.extensions and reconstructed in the transcript with
      the specified value.

Thanks & Regards
Raja Ashok

On Mon, Apr 27, 2020 at 2:41 AM <internet-drafts@ietf.org> wrote:

>
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> This draft is a work item of the Transport Layer Security WG of the IETF.
>
>         Title           : Compact TLS 1.3
>         Authors         : Eric Rescorla
>                           Richard Barnes
>                           Hannes Tschofenig
>         Filename        : draft-ietf-tls-ctls-00.txt
>         Pages           : 17
>         Date            : 2020-04-26
>
> Abstract:
>    This document specifies a "compact" version of TLS 1.3.  It is
>    isomorphic to TLS 1.3 but saves space by trimming obsolete material,
>    tighter encoding, and a template-based specialization technique. cTLS
>    is not directly interoperable with TLS 1.3, but it should eventually
>    be possible for a cTLS/TLS 1.3 server to exist and successfully
>    interoperate.
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-tls-ctls/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-tls-ctls-00
> https://datatracker.ietf.org/doc/html/draft-ietf-tls-ctls-00
>
>
> Please note that it may take a couple of minutes from the time of
> submission
> until the htmlized version and diff are available at tools.ietf.org.
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
>
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