Re: [Acme] Signature misuse vulnerability in draft-barnes-acme-04

2015-08-12 Thread Richard Barnes
On Wed, Aug 12, 2015 at 10:30 PM, Eric Mill e...@konklone.com wrote: That seems like a great way to simplify the protocol. On the other hand, Jacob's /.well-known/certificate/acme-account-keys.json idea is also quite nice. This is only tangentially on-topic, but since the idea's been

[Acme] draft-ietf-acme

2015-08-12 Thread Ted Hardie
Howdy, At the meeting in Prague, the room felt that adopting draft-barnes-acme as a working group draft was appropriate (this is also in the charter). Richard is touching up the editing buffer for that now, but if you have a contrary opinion, now would be the time to let us know. thanks, Ted

Re: [Acme] draft-ietf-acme

2015-08-12 Thread Tony Arcieri
On Wed, Aug 12, 2015 at 11:44 AM, Ted Hardie ted.i...@gmail.com wrote: ​So, this is a common misconception. Adopting a draft doesn't mean you think it is done or even that it has no known issues; it's a statement by the working group that this is a starting point. ​Think of it like picking

Re: [Acme] draft-ietf-acme

2015-08-12 Thread Tony Arcieri
I think the duplicate-signature key selection attack Andrew Ayer discovered here really needs to be addressed (unless it already was): https://mailarchive.ietf.org/arch/msg/acme/F71iz6qq1o_QPVhJCV4dqWf-4Yc On Wed, Aug 12, 2015 at 10:46 AM, Ted Hardie ted.i...@gmail.com wrote: Howdy, At the

Re: [Acme] draft-ietf-acme

2015-08-12 Thread Daniel Kahn Gillmor
On Wed 2015-08-12 14:18:54 -0400, Tony Arcieri wrote: On Wed, Aug 12, 2015 at 11:03 AM, Martin Thomson martin.thom...@gmail.com wrote: I don't see that as reason enough to block adoption. It represents a conceptual misuse of digital signatures, and seems to me like a very fundamental

Re: [Acme] draft-ietf-acme

2015-08-12 Thread Tony Arcieri
On Wed, Aug 12, 2015 at 11:03 AM, Martin Thomson martin.thom...@gmail.com wrote: I don't see that as reason enough to block adoption. It represents a conceptual misuse of digital signatures, and seems to me like a very fundamental design flaw which is easily addressed. I'm confused why you

Re: [Acme] draft-ietf-acme

2015-08-12 Thread Martin Thomson
On 12 August 2015 at 11:18, Tony Arcieri basc...@gmail.com wrote: It represents a conceptual misuse of digital signatures, and seems to me like a very fundamental design flaw which is easily addressed. I'm confused why you don't want to address it before adopting the draft. If we set a