[TLS] PR#962:CertificateRequest in post-handhake phase

2017-04-18 Thread Eric Rescorla
https://github.com/tlswg/tls13-spec/pull/962 Target merge date: Thursday In reviewing the specification, I noticed that we seem to have banned the use of CertificateRequest with PSK both in the main handshake and in the post-handshake phase. I don't believe that this was intentional and it makes i

Re: [TLS] Call for adoption of draft-sullivan-tls-exported-authenticator

2017-04-18 Thread Ilari Liusvaara
On Tue, Apr 18, 2017 at 11:29:31AM -0400, Victor Vasiliev wrote: > I've read the draft, and I support its adoption. I believe that the > mechanism > is sound for its stated use. > > The second issue I have is with the question of when does authentication > succeed. In TLS, by the time any party

Re: [TLS] Call for adoption of draft-sullivan-tls-exported-authenticator

2017-04-18 Thread Nico Williams
On Thu, Apr 13, 2017 at 09:29:27PM -0700, Joseph Salowey wrote: > At the IETF 98 meeting in Chicago there was support in the room to adopt > draft-sullivan-tls-exported-authenticator [0]. We are looking for feedback > on adopting this draft form the list. Please respond if you support the > draft a

Re: [TLS] PR#962:CertificateRequest in post-handhake phase

2017-04-18 Thread Ilari Liusvaara
On Tue, Apr 18, 2017 at 09:48:33AM -0400, Eric Rescorla wrote: > https://github.com/tlswg/tls13-spec/pull/962 > Target merge date: Thursday > > In reviewing the specification, I noticed that we seem to have banned the > use of CertificateRequest with PSK both in the main handshake and in the > pos

Re: [TLS] PR#962:CertificateRequest in post-handhake phase

2017-04-18 Thread Eric Rescorla
On Tue, Apr 18, 2017 at 3:41 PM, Ilari Liusvaara wrote: > On Tue, Apr 18, 2017 at 09:48:33AM -0400, Eric Rescorla wrote: > > https://github.com/tlswg/tls13-spec/pull/962 > > Target merge date: Thursday > > > > In reviewing the specification, I noticed that we seem to have banned the > > use of Ce

Re: [TLS] PR#962:CertificateRequest in post-handhake phase

2017-04-18 Thread Ilari Liusvaara
On Tue, Apr 18, 2017 at 03:51:53PM -0400, Eric Rescorla wrote: > On Tue, Apr 18, 2017 at 3:41 PM, Ilari Liusvaara > wrote: > > > > On topic of PSKs, I noticed that TLS 1.3 makes it very easy to mount > > dictionary attacks against PSK, regardless of DHE-PSK (especially to > > recover the client PS

Re: [TLS] PR#962:CertificateRequest in post-handhake phase

2017-04-18 Thread Eric Rescorla
On Tue, Apr 18, 2017 at 4:44 PM, Ilari Liusvaara wrote: > On Tue, Apr 18, 2017 at 03:51:53PM -0400, Eric Rescorla wrote: > > On Tue, Apr 18, 2017 at 3:41 PM, Ilari Liusvaara < > ilariliusva...@welho.com> > > wrote: > > > > > > On topic of PSKs, I noticed that TLS 1.3 makes it very easy to mount >

Re: [TLS] Call for adoption of draft-sullivan-tls-exported-authenticator

2017-04-18 Thread Nick Sullivan
Thanks for the review. Comments/questions inline. I put together a pull request with your suggested changes here if you would like to review: https://github.com/grittygrease/tls-exported-authenticator/pull/11 On Fri, Apr 14, 2017 at 4:44 AM Ilari Liusvaara wrote: > On Thu, Apr 13, 2017 at 09:29

Re: [TLS] Call for adoption of draft-sullivan-tls-exported-authenticator

2017-04-18 Thread Nick Sullivan
On Sat, Apr 15, 2017 at 6:42 AM Ilari Liusvaara wrote: > On Fri, Apr 14, 2017 at 02:44:25PM +0300, Ilari Liusvaara wrote: > > On Thu, Apr 13, 2017 at 09:29:27PM -0700, Joseph Salowey wrote: > > > Hey Folks, > > > > > > At the IETF 98 meeting in Chicago there was support in the room to > adopt > >

Re: [TLS] Call for adoption of draft-sullivan-tls-exported-authenticator

2017-04-18 Thread Nick Sullivan
Thanks for the review. I'm open to adding text indicating that the exported authenticator SHOULD be sent using an application protected by the TLS stream in question, but I don't want to remove the possibility of sending the data over a secure secondary channel, depending on the application. Nick

Re: [TLS] Call for adoption of draft-sullivan-tls-exported-authenticator

2017-04-18 Thread Ilari Liusvaara
On Tue, Apr 18, 2017 at 10:18:03PM +, Nick Sullivan wrote: > On Sat, Apr 15, 2017 at 6:42 AM Ilari Liusvaara > wrote: > > > > How do certificate type extensions (#9, #19 and #20) work with exported > > authenticators? > > > > Where other extensions are either meaningless or are edditional info