Re: [OPSEC] draft-bhatia-manral-igp-crypto-requirements
John Smith <jsmith4112003@yahoo.co.uk> Thu, 26 February 2009 16:26 UTC
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Date: Thu, 26 Feb 2009 16:27:18 +0000
From: John Smith <jsmith4112003@yahoo.co.uk>
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Subject: Re: [OPSEC] draft-bhatia-manral-igp-crypto-requirements
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I concur with the idea that we should start moving towards HMAC-SHA as soon as it starts becoming available in the vendors data sheets. A recommendation from OPSEC will go a long way in making sure that folks start demanding this from their favorite vendors. I also see that ISIS has recently posted an RFC describing how HMAC-SHA can be used; am sure, OSPF is not going to lag far behind. There are similar efforts underway in the TCPM WG to obsolete MD5 in favor of stronger algorithms. Thanks, John > -----Original Message----- > From: opsec-bounces@ietf.org [mailto:opsec-bounces@ietf.org] > On Behalf Of Vishwas Manral > Sent: Tuesday, February 24, 2009 11.50 PM > To: Glen Kent > Cc: opsec wg mailing list > Subject: Re: [OPSEC] draft-bhatia-manral-igp-crypto-requirements > > Hi Glen, > > Thanks for your support of the document. > > There was no ambiguity as such, however Ran wanted us to look further > into whether the recently announced vulnerabilities to SHA-1 and MD5 > would effect the reccomendation for HMAC-SHA-1. > > Thanks, > Vishwas > > On Tue, Feb 24, 2009 at 9:04 AM, Glen Kent > <glen.kent@gmail.com> wrote: > > So was there any ambiguity in recommending HMAC-SHA1 over other > > available options ever? > > > > I re-read the document, found it extremely simple, the > recommendations > > look right, found it just to be what OPSEC must own up. > > > > Glen > > > > On Tue, Feb 24, 2009 at 9:39 AM, Vishwas Manral > <vishwas.ietf@gmail.com> wrote: > >> Hi folks, > >> > >> We now have got some clear guidance regarding this > document from the > >> Security AD's regarding the cryptographic algorithms (Joel has been > >> privy to those mails). The guidance seems to second what Hugo and > >> other cryptographers have been stating all along. The crux > of what has > >> been said is: > >> > >> MD5 should not be used for crypto purposes. SHA-1 though > stronger is > >> also vulnerable. HMAC-MD5 though not yet vulnerable looks highly > >> suspect and should not be reccomended. HMAC-SHA-1 for now > looks ok and > >> can be reccomended. Goinf forward we should try to > reccomend the SHA-2 > >> family of protocols. > >> > >> With these clear guidances matching what we have in our > documents, I > >> would like to ask the working group to look into this document > >> further. We can then look at getting this as a WG document. > >> > >> Thanks, > >> Vishwas > >> _______________________________________________ > >> OPSEC mailing list > >> OPSEC@ietf.org > >> https://www.ietf.org/mailman/listinfo/opsec > >> > > > _______________________________________________ > OPSEC mailing list > OPSEC@ietf.org > https://www.ietf.org/mailman/listinfo/opsec >
- [OPSEC] draft-bhatia-manral-igp-crypto-requiremen… Vishwas Manral
- Re: [OPSEC] draft-bhatia-manral-igp-crypto-requir… Glen Kent
- Re: [OPSEC] draft-bhatia-manral-igp-crypto-requir… Vishwas Manral
- Re: [OPSEC] draft-bhatia-manral-igp-crypto-requir… Joel Jaeggli
- Re: [OPSEC] draft-bhatia-manral-igp-crypto-requir… Vishwas Manral
- Re: [OPSEC] draft-bhatia-manral-igp-crypto-requir… Joel Jaeggli
- Re: [OPSEC] draft-bhatia-manral-igp-crypto-requir… Bhatia, Manav (Manav)
- Re: [OPSEC] draft-bhatia-manral-igp-crypto-requir… John Smith
- Re: [OPSEC] draft-bhatia-manral-igp-crypto-requir… Pasi.Eronen
- Re: [OPSEC] draft-bhatia-manral-igp-crypto-requir… Vishwas Manral