Re: [Hipsec] AUTH48 [LB]: 5201-bis - Re: Reference problem in 5201-bis wrt SECP160R1
Robert Moskowitz <rgm@htt-consult.com> Wed, 28 January 2015 19:16 UTC
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Date: Wed, 28 Jan 2015 14:16:24 -0500
From: Robert Moskowitz <rgm@htt-consult.com>
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To: Miika Komu <mkomu@cs.hut.fi>, hipsec@ietf.org
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Subject: Re: [Hipsec] AUTH48 [LB]: 5201-bis - Re: Reference problem in 5201-bis wrt SECP160R1
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WONDERFUL! thanks On 01/28/2015 01:35 PM, Miika Komu wrote: > Hi, > > you mean this? > > http://perso.univ-rennes1.fr/sylvain.duquesne/master/standards/sec2_final.pdf > > > On 01/28/2015 05:54 PM, Robert Moskowitz wrote: >> We have a dangling reference in 5201-bis. >> >> It seems that the old reference for secp160r1 is no longer available. I >> cannot find anything in my searching. >> >> Can anyone point to a reference for it? >> >> thanks >> >> >> On 08/08/2012 02:35 PM, Rene Struik wrote: >>> Hi Bob: >>> >>> You are correct that SECG removed the prime curve secp160r1 from the >>> SEC1 specification, when moving from v1.0 to v2.0. However, you can >>> still access this under the "superseded specifications" tab: the >>> weblink >>> should be http://www.secg.org/download/aid-386/sec2_final.pdf. >>> >>> You may also find this curve specified elsewhere, e.g., (if memory >>> serves me well) with some copy protection schemes, such as DTCP. >>> >>> I hope this helps. >>> >>> Best regards, >>> >>> Rene >>> >>> On 08/08/2012 9:24 AM, Robert Moskowitz wrote: >>>> For low security we have SECP160R1 from: >>>> >>>> [SECG] SECG, "Recommended Elliptic Curve >>>> Domain >>>> Parameters", SEC 2 , 2000, >>>> <http://www.secg.org/>. >>>> >>>> I went there yesterday to look up some of the information on actual >>>> sizes and got to: >>>> >>>> http://www.secg.org/download/aid-784/sec2-v2.pdf, published Jan 27, >>>> 2010. >>>> >>>> And no SECP160R1, the smallest keysize now is SECP192R1 (sec 2.2.2). >>>> >>>> So we have a reference problem here as well as giving a developer the >>>> parameter values needed to implement SECP160R1. >>>> >>>> Corrective action options: >>>> >>>> 1) Directly supply the parameters for SECP160R1 in Appendix D and >>>> reference the version of secg they were pulled from. >>>> >>>> 2) Find a more stable source for SECP160R1 to reference. >>>> >>>> 3) Move to SECP192R1 (which I am leary of as ver 3.0 of secg could >>>> drop that!). >>>> >>>> I vote for 1) and ask whoever has the older version of secg to forward >>>> the parameters for inclusion. >>>> >>>> BTW, HIP DEX works a bit differently in that the keys generated from >>>> the ECDH exchange are only used in protecting HIP packets and a >>>> wrapped key exchange within HIP provides the keying material for >>>> session keys (eg ESP or 802.15.4 security). So in DEX, using >>>> SECP160R1 may not be as much of a risk as in BEX, so I DO plan on >>>> providing the SECP160R1 parameters in DEX. >>>> >>>> >>>> _______________________________________________ >>>> Hipsec mailing list >>>> Hipsec@ietf.org >>>> https://www.ietf.org/mailman/listinfo/hipsec >>> >> >> _______________________________________________ >> Hipsec mailing list >> Hipsec@ietf.org >> https://www.ietf.org/mailman/listinfo/hipsec >> > > _______________________________________________ > Hipsec mailing list > Hipsec@ietf.org > https://www.ietf.org/mailman/listinfo/hipsec > >
- [Hipsec] Reference problem in 5201-bis wrt SECP16… Robert Moskowitz
- Re: [Hipsec] Reference problem in 5201-bis wrt SE… Rene Struik
- Re: [Hipsec] AUTH48 [LB]: 5201-bis - Re: Referenc… Robert Moskowitz
- Re: [Hipsec] AUTH48 [LB]: 5201-bis - Re: Referenc… Miika Komu
- Re: [Hipsec] AUTH48 [LB]: 5201-bis - Re: Referenc… Robert Moskowitz