Re: [dane] Feature creep for draft-ietf-dane-smime
Warren Kumari <warren@kumari.net> Thu, 13 February 2014 20:43 UTC
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Date: Thu, 13 Feb 2014 15:43:27 -0500
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From: Warren Kumari <warren@kumari.net>
To: dane@ietf.org
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Archived-At: http://mailarchive.ietf.org/arch/msg/dane/KvyxvDv-aU9Og8k_mCqTJzBi1Hg
Subject: Re: [dane] Feature creep for draft-ietf-dane-smime
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On Thu, Feb 13, 2014 at 1:24 PM, Viktor Dukhovni <viktor1dane@dukhovni.org> wrote: > On Thu, Feb 13, 2014 at 06:19:15PM +0000, Osterweil, Eric wrote: > >> > Either way of computing the hash of the full address, rather than >> > just the local part adds no complexity, and makes off-line attacks >> > more difficult (per site dictionaries, rather than global dictionaries). >> > This is a free win. There's simply no reason not to. >> >> I have to say that I agree with Paul here. I think the epsilon >> increase in security is nice, but not at the cost of the additional >> operational complexity. However, the hashing-only approach has >> the nice side effect of fixing the label length. That _does_ seem >> to solve a problem w/o some of the additional complexity. My vote >> would be hashing-only approach over Base32 and HMAC. > > In an off-list IM discussion, Paul H. and I reached consensus on > local-part only hashing. His argument is based on the introduction > of root zone DNAME RRs that create equivalence between large subtrees > of the DNS namespace. Doh! Yeah, that's a really good point -- there have been a number of similar discussions recently where DNAME has thrown a spanner into the works / hasn't been considered. W > Users will likely expect these to result in > equivalence of email addresses, ... so having SMIMEA lookup labels > that work relative to multiple equivalent domain FQDNs is then a > requirement. > > So I withdraw the suggestion to salt the lookup key with the domain. > > -- > Viktor. > > _______________________________________________ > dane mailing list > dane@ietf.org > https://www.ietf.org/mailman/listinfo/dane
- [dane] I-D Action: draft-ietf-dane-smime-03.txt internet-drafts
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Scott Rose
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Paul Hoffman
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Scott Rose
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Scott Rose
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Osterweil, Eric
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Jakob Schlyter
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Osterweil, Eric
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- [dane] draft-ietf-dane-smime and certificate disc… Paul Hoffman
- Re: [dane] draft-ietf-dane-smime and certificate … Osterweil, Eric
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Osterweil, Eric
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] draft-ietf-dane-smime and certificate … Paul Hoffman
- Re: [dane] draft-ietf-dane-smime and certificate … Viktor Dukhovni
- Re: [dane] draft-ietf-dane-smime and certificate … Paul Hoffman
- Re: [dane] draft-ietf-dane-smime and certificate … Viktor Dukhovni
- Re: [dane] draft-ietf-dane-smime and certificate … Paul Hoffman
- Re: [dane] draft-ietf-dane-smime and certificate … Osterweil, Eric
- Re: [dane] draft-ietf-dane-smime and certificate … Osterweil, Eric
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Osterweil, Eric
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Paul Wouters
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Andrew Sullivan
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Andrew Sullivan
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Mark Andrews
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Mark Andrews
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Larsen, Todd
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Osterweil, Eric
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Larsen, Todd
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Osterweil, Eric
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Jakob Schlyter
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Jim Schaad
- [dane] Feature creep for draft-ietf-dane-smime Paul Hoffman
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] Feature creep for draft-ietf-dane-smime Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Wiley, Glen
- Re: [dane] Feature creep for draft-ietf-dane-smime Tom Ritter
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Paul Wouters
- Re: [dane] Feature creep for draft-ietf-dane-smime Paul Wouters
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] Feature creep for draft-ietf-dane-smime Viktor Dukhovni
- Re: [dane] Feature creep for draft-ietf-dane-smime Paul Hoffman
- Re: [dane] Feature creep for draft-ietf-dane-smime Viktor Dukhovni
- Re: [dane] Feature creep for draft-ietf-dane-smime John Levine
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Paul Wouters
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] I-D Action: draft-ietf-dane-smime-03.t… Viktor Dukhovni
- Re: [dane] Feature creep for draft-ietf-dane-smime Osterweil, Eric
- Re: [dane] Feature creep for draft-ietf-dane-smime Viktor Dukhovni
- Re: [dane] Feature creep for draft-ietf-dane-smime Warren Kumari
- Re: [dane] draft-ietf-dane-smime and certificate … Wes Hardaker