Re: [saag] Is opportunistic unauthenticated encryption a waste of time?
Viktor Dukhovni <ietf-dane@dukhovni.org> Sat, 23 August 2014 21:06 UTC
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Date: Sat, 23 Aug 2014 21:05:50 +0000
From: Viktor Dukhovni <ietf-dane@dukhovni.org>
To: ietf@ietf.org, "saag@ietf.org" <saag@ietf.org>
Subject: Re: [saag] Is opportunistic unauthenticated encryption a waste of time?
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References: <CAMm+LwhmJpnU8E9ifA47baneGB=qjHzU_cy+wepPYLXrOhB+Pg@mail.gmail.com> <20140821160402.GT14392@mournblade.imrryr.org> <f5d8b5dc37b84f709c8f2df7c7a69daf@AMSPR06MB439.eurprd06.prod.outlook.com> <CAK3OfOgZzoXVnrE8Nbs6mwN2xD_snbzH9jT8TsYOVt8UASahYQ@mail.gmail.com> <a354d63505924d76a15b505e60e27a16@AMSPR06MB439.eurprd06.prod.outlook.com> <20140822140000.GE14392@mournblade.imrryr.org> <BLU181-W84354FE6BEF12305A2A7DB93D10@phx.gbl> <20140823040550.GQ5909@localhost> <BLU181-W307B52819C577693183E2D93D10@phx.gbl> <53F8FA97.2020607@cs.tcd.ie>
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On Sat, Aug 23, 2014 at 09:33:27PM +0100, Stephen Farrell wrote: > However, say we're wrong and someone who thinks OS is a waste > of time is actually correct, what would such a person recommend > that we do as well as, or instead of, OS? For the record I started work on "opportunistic DANE TLS", in March 2013, well before PM became a major concern. It was designed as a way to scalably enable authentication in SMTP, by making that opportunistic (enabled peer by peer as DANE TLSA RRs are deployed). So I see OS as a strategy to incrementally broaden both the use of encryption AND the use of authentication. Whether protocols other than MTA-to-MTA SMTP can implement OS *with* authentication remains to be seen. I hope that will prove possible over time. For mobile device applications, we may have to wait for the DNSSEC "last mile problem" to be largely addressed before significant progress in that direction can be made. -- Viktor.
- Adept Encryption: Was: [saag] DANE should be more… Phillip Hallam-Baker
- Re: Adept Encryption: Was: [saag] DANE should be … Paul Wouters
- Re: Adept Encryption: Was: [saag] DANE should be … Stephen Farrell
- Re: Adept Encryption: Was: [saag] DANE should be … Nico Williams
- Re: Adept Encryption: Was: [saag] DANE should be … Dave Crocker
- Re: Adept Encryption: Was: [saag] DANE should be … Scott Kitterman
- RE: Adept Encryption: Was: [saag] DANE should be … l.wood
- Re: Adept Encryption: Was: [saag] DANE should be … Stephen Farrell
- Re: Adept Encryption: Was: [saag] DANE should be … Phillip Hallam-Baker
- Re: Adept Encryption: Was: [saag] DANE should be … Stephen Kent
- Re: Adept Encryption: Was: [saag] DANE should be … Viktor Dukhovni
- Re: Adept Encryption: Was: [saag] DANE should be … Viktor Dukhovni
- Re: [saag] Adept Encryption: Was: DANE should be … Nico Williams
- RE: Adept Encryption: Was: [saag] DANE should be … Christian Huitema
- Re: Adept Encryption: Was: [saag] DANE should be … Nico Williams
- RE: Adept Encryption: Was: [saag] DANE should be … l.wood
- Re: [saag]: Review of: Opportunistic Security -03… Viktor Dukhovni
- Re: [saag] Adept Encryption: Was: DANE should be … Nico Williams
- RE: [saag] Adept Encryption: Was: DANE should be … l.wood
- Re: Adept Encryption: Was: [saag] DANE should be … Stephen Farrell
- Re: [saag] Is opportunistic unauthenticated encry… Viktor Dukhovni
- Re: [saag]: Review of: Opportunistic Security -03… Paul Wouters
- Re: [saag] : Review of: Opportunistic Security -0… Stephen Kent
- Re: [saag] Adept Encryption: Was: DANE should be … Stephen Kent
- RE: [saag] Is opportunistic unauthenticated encry… Bernard Aboba
- Re: [saag] Is opportunistic unauthenticated encry… Theodore Ts'o
- RE: [saag] Is opportunistic unauthenticated encry… Christian Huitema
- Re: [saag] Is opportunistic unauthenticated encry… Nico Williams
- RE: [saag] Is opportunistic unauthenticated encry… Bernard Aboba
- Re: [saag] Is opportunistic unauthenticated encry… Stephen Farrell
- RE: [saag] Is opportunistic unauthenticated encry… Bernard Aboba
- Re: [saag] Is opportunistic unauthenticated encry… Viktor Dukhovni
- Re: [saag] Is opportunistic unauthenticated encry… Stephen Farrell
- Re: [saag] Is opportunistic unauthenticated encry… Fernando Gont
- Re: Is traffic analysis really a target (was Re: … Eric Burger
- Re: Is traffic analysis really a target (was Re: … Michael StJohns
- Re: [saag] Is opportunistic unauthenticated encry… Dave Crocker
- Re: Is traffic analysis really a target (was Re: … Brian E Carpenter
- Re: [saag] Is opportunistic unauthenticated encry… joel jaeggli
- Re: [saag] Is opportunistic unauthenticated encry… Fernando Gont
- Re: [saag] Is opportunistic unauthenticated encry… joel jaeggli
- Re: [saag] Is opportunistic unauthenticated encry… Fernando Gont
- Re: Is traffic analysis really a target (was Re: … Mark Andrews
- Re: [saag] Is traffic analysis really a target (w… Henry B (Hank) Hotz, CISSP
- Re: Is traffic analysis really a target (was Re: … Ted Hardie
- RE: [saag] Is opportunistic unauthenticated encry… Hosnieh Rafiee
- Re: Is traffic analysis really a target (was Re: … Brian E Carpenter
- Re: Is traffic analysis really a target (was Re: … Nico Williams
- Re: Is traffic analysis really a target (was Re: … Eric Burger