Re: [Hipsec] I-D Action: draft-ietf-hip-dex-24.txt

Robert Moskowitz <rgm@htt-consult.com> Tue, 19 January 2021 23:45 UTC

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From: Robert Moskowitz <rgm@htt-consult.com>
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Subject: Re: [Hipsec] I-D Action: draft-ietf-hip-dex-24.txt
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More fine-tuning.

Please look at the diffs.

Please note, that I have not been able to find any energy consumption 
numbers to go along with the cycles for the EdDSA signing and 
verifying.  I do not believe it is trivial; not from conversations I 
have had.  Also I am not sure you can simply convert cycles to wall 
time.  This was my experience when working on ZWave. For whatever 
reason, wall time was higher than simple cycle counting predicted.

Happy reading!  Or at least diffs.  Maybe diff -21 with -24...

On 1/19/21 6:37 PM, 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 Host Identity Protocol WG of the IETF.
>
>          Title           : HIP Diet EXchange (DEX)
>          Authors         : Robert Moskowitz
>                            Rene Hummen
>                            Miika Komu
> 	Filename        : draft-ietf-hip-dex-24.txt
> 	Pages           : 64
> 	Date            : 2021-01-19
>
> Abstract:
>     This document specifies the Host Identity Protocol Diet EXchange (HIP
>     DEX), a variant of the Host Identity Protocol Version 2 (HIPv2) and
>     specifically developed for use on low end processors.  The HIP DEX
>     protocol design aims at reducing the overhead of the employed
>     cryptographic primitives by omitting public-key signatures and
>     cryptographic hash functions.
>
>     The HIP DEX protocol is primarily designed for computation or memory-
>     constrained sensor/actuator devices.  Like HIPv2, it is expected to
>     be used together with a suitable security protocol such as the
>     Encapsulated Security Payload (ESP) for the protection of upper layer
>     protocol data.  Unlike HIPv2, HIP DEX does not support Forward
>     Secrecy (FS), and MUST only be used on devices where FS is
>     prohibitively expensive.  In addition, HIP DEX can also be used as a
>     keying mechanism for security primitives at the MAC layer, e.g., for
>     IEEE 802.15.4 networks.
>
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-hip-dex/
>
> There is also an HTML version available at:
> https://www.ietf.org/archive/id/draft-ietf-hip-dex-24.html
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-hip-dex-24
>
>
> 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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