Hi, I'm still wondering, why the "clashing" calculations (section 4) are only based on the number of clients and not also on the length of the hash chain. As I understood the hash chain, the DTLS server and client calculates a list of CIDs. Though the client chose one, the server has to prepare for the (left) list of CIDs. So even assuming that in average half of the list is already used, I think the length of that list has influence on the clashing.
Mit freundlichen Grüßen / Best regards Achim Kraus Bosch Software Innovations GmbH Communications (INST/ESY1) Stuttgarter Straße 130 71332 Waiblingen GERMANY www.bosch-si.de www.blog.bosch-si.com Registered office: Berlin, Register court: Amtsgericht Charlottenburg, HRB 148411 B Executives: Dr.-Ing. Rainer Kallenbach; Michael Hahn -----Ursprüngliche Nachricht----- Von: TLS [mailto:tls-boun...@ietf.org] Im Auftrag von Fossati, Thomas (Nokia - GB) Gesendet: Dienstag, 15. November 2016 08:08 An: Martin Thomson <martin.thom...@gmail.com>; Eric Rescorla <e...@rtfm.com> Cc: Hannes Tschofenig <hannes.tschofe...@arm.com>; tls@ietf.org Betreff: Re: [TLS] [ALU] Re: extending the un-authenticated DTLS header On 15/11/2016 03:51, "TLS on behalf of Martin Thomson" <tls-boun...@ietf.org on behalf of martin.thom...@gmail.com> wrote: >On 15 November 2016 at 10:16, Eric Rescorla <e...@rtfm.com> wrote: >>> I'd be interested in an analysis of the potential privacy impacts of >>> this. Isn't this more or less the same as doing SPUD-for-DTLS? (If >>> not, sorry for dragging in controversy:-) >> >> >> It would no doubt depend what you put there. > >Which is why I'm interested in seeing Nikos' (unpublished?) draft. Published: https://tools.ietf.org/html/draft-mavrogiannopoulos-tls-cid-00 Working copy: https://thomas-fossati.github.io/draft-tls-cid/ Slides for today, "DTLS Optimizations for IoT Deployments": https://www.ietf.org/proceedings/97/slides/slides-97-tls-dtls-optimizations -for-iot-deployments-00.pptx _______________________________________________ TLS mailing list TLS@ietf.org https://www.ietf.org/mailman/listinfo/tls _______________________________________________ TLS mailing list TLS@ietf.org https://www.ietf.org/mailman/listinfo/tls
