Re: [Acme] Want client-defined callback port

2015-04-23 Thread Richard Barnes
On Wed, Apr 22, 2015 at 9:51 PM, Phillip Hallam-Baker ph...@hallambaker.com wrote: I think this discussion is getting way too deep into the weeds of policy. That isn't a concern IETF has generally taken a definitive stand on. If it had there would not have been the need to set up CABForum

Re: [Acme] Want client-defined callback port

2015-04-22 Thread Martin Thomson
On 22 April 2015 at 19:33, Peter Eckersley p...@eff.org wrote: Perhaps those policies can be stored out of band, or perhaps we can add a separate REST API endpoint where clients ask what ports the server considers acceptable for DV Challenges. Or just pick port 100 (or another that isn't

Re: [Acme] Want client-defined callback port

2015-04-22 Thread Bruce Gaya
On 22 Apr 2015, at 15:10, Richard Barnes r...@ipv.sx wrote: On Tue, Apr 21, 2015 at 10:53 PM, Bruce Gaya g...@apple.com mailto:g...@apple.com wrote: On 21 Apr 2015, at 18:23, Salz, Rich rs...@akamai.com mailto:rs...@akamai.com wrote: I understand that you want it to “just work”

Re: [Acme] Want client-defined callback port

2015-04-21 Thread Salz, Rich
I understand that you want it to “just work” (you said that a couple of times :), but other folks have raised security concerns – do you understand or agree with them? One way forward is to say a client MAY specific a port, where the default is 443. An ACME server MAY reject requests for ports

Re: [Acme] Want client-defined callback port

2015-04-21 Thread Viktor Dukhovni
On Tue, Apr 21, 2015 at 07:53:25PM -0700, Bruce Gaya wrote: The policy of Let's Encrypt Certificate Authority, however, is very important! I also would very much like that CA to allow client-defined callback ports below 1024. That level of diligence would finally expose the security of