Hey Mohit, I see your point and that it is out of scope for the document. However, I feel the title and the abstract is then a bit misleading and should say that this document discusses security architectures and cryptographic functions for authentication/signing only? Just a thought to avoid missunderstandings. Regards Tobias
-----Ursprüngliche Nachricht----- Von: Lwip [mailto:[email protected]] Im Auftrag von Mohit Sethi Gesendet: Sonntag, 6. August 2017 21:10 An: Carsten Bormann <[email protected]> Cc: [email protected] Betreff: Re: [Lwip] WGLC for draft-ietf-lwig-crypto-sensors-03 Hi Carsten This document looks at a very specific deployment scenario where resource-constrained devices sign message objects. Therefore, it only documents the performance of ECDSA sign operation. I do think the numbers of Elliptic curve diffie-hellman key agreement are useful for the community and the group should work on documenting them. I did discuss this with Tobias (off-the-mailing list) and perhaps those numbers can go in a separate document on minimal G-IKEv2. I currently have a working implementation of x25519 Diffie-hellman key agreement on a R Pi but I don't consider it constrained enough. Once I have more numbers, I will definitely contribute. But for now I strongly believe that they don't fit into the current document. --Mohit On 08/06/2017 02:39 PM, Carsten Bormann wrote: > Hi Mohit, > > One point that came up in the discussion in Prague was Diffie-Hellman > performance. > For a deployment that relies on symmetric keys for mutual authentication, it > may be useful to do an (ECC) D-H key agreement to achieve forward security. > I believe some numbers for that are available? > It would be useful to include them in order to motivate the use of forward > secure key agreement. > > Grüße, Carsten > > >> On Aug 6, 2017, at 12:18, Mohit Sethi <[email protected]> wrote: >> >> Hi all >> >> The authors of the document believe that it is ready to move forward. During >> the previous last call we had already received support from several working >> group members. >> >> Based on the feedback during the previous last call, we removed the >> performance measurements of RSA key sizes smaller than 2048 bits. We also >> added performance measurements of ECDSA sign operation on ARM 32-bit >> platforms. Additionally, we improved the text on the need for a random >> number generator, more guidance on choosing the right platform, and why >> larger flash memory size is needed for firmware updates. We also removed >> some extraneous text from the background section. Any further comments are >> welcome. >> >> --Mohit >> >> >> On 07/31/2017 04:23 AM, Zhen Cao wrote: >>> Hello Everyone, >>> >>> This email starts the WGLC for draft-ietf-lwig-crypto-sensors-03 >>> https://tools.ietf.org/html/draft-ietf-lwig-crypto-sensors-03 >>> >>> This is a second WGLC with the new draft resolving the comments >>> received from last round. >>> >>> We still appreciate very much if could you help review the document >>> and send your comments to the mailing list. Thank you in advance. >>> >>> The WGLC will end in ONE week till August 7th, 2017. >>> >>> Thank the authors for their hard work again. >>> >>> Best regards, >>> Zhen >>> >>> On Wed, Feb 22, 2017 at 11:15 AM, Zhen Cao <[email protected]> wrote: >>>> Hello everyone, >>>> >>>> This email starts the WGLC for draft-ietf-lwig-crypto-sensors-02 >>>> (https://tools.ietf.org/html/draft-ietf-lwig-crypto-sensors-02) >>>> >>>> Could you help review the document and send your comments to the >>>> mailing list. Thank you in advance. >>>> >>>> The WGLC will end in two weeks from now. >>>> >>>> BR, >>>> Zhen >>> _______________________________________________ >>> Lwip mailing list >>> [email protected] >>> https://www.ietf.org/mailman/listinfo/lwip >> >> _______________________________________________ >> Lwip mailing list >> [email protected] >> https://www.ietf.org/mailman/listinfo/lwip >> _______________________________________________ Lwip mailing list [email protected] https://www.ietf.org/mailman/listinfo/lwip _______________________________________________ Lwip mailing list [email protected] https://www.ietf.org/mailman/listinfo/lwip
