Re: [TLS] COSIC's look on TLS 1.3

2016-11-16 Thread Eric Rescorla
This paragraph refers to the anti-downgrade mechanism described in 4.1.3. -Ekr On Wed, Nov 9, 2016 at 6:56 AM, Roel Peeters wrote: > Hi Dave, > > We are wondering because of this piece of text from the RFC EDITOR just > above paragraph 4.1.4 on Hello Retry Request: > > RFC EDITOR: PLEASE REMOV

Re: [TLS] COSIC's look on TLS 1.3

2016-11-16 Thread Roel Peeters
Hi Dave, We are wondering because of this piece of text from the RFC EDITOR just above paragraph 4.1.4 on Hello Retry Request: RFC EDITOR: PLEASE REMOVE THE FOLLOWING PARAGRAPH Implementations of draft versions (see Section 4.2.1.1) of this specification SHOULD NOT implement this mechanism on

Re: [TLS] COSIC's look on TLS 1.3

2016-11-08 Thread Eric Rescorla
On Tue, Nov 8, 2016 at 2:33 PM, Ilari Liusvaara wrote: > - Yeah, there have been complaints about lack of state diagram, stating > that the present ladder diagram is not sufficient. > Yeah, I'm taking this point to heart. I've been a bit swamped with implementation matters, but I'll get workin

Re: [TLS] COSIC's look on TLS 1.3

2016-11-08 Thread Ilari Liusvaara
On Tue, Nov 08, 2016 at 03:55:36PM +0100, Roel Peeters wrote: > Dear all, > > just to let you know that we have written a blog post on the current TLS > 1.3 draft, with our remarks that might be of use in your upcoming meeting. > > https://securewww.esat.kuleuven.be/cosic/?p=6624 Some comments:

Re: [TLS] COSIC's look on TLS 1.3

2016-11-08 Thread Dave Garrett
On Tuesday, November 08, 2016 09:55:36 am Roel Peeters wrote: > we are also wondering whether or not the Hello Retry Request will be > included or omitted in the standard. Leaving it out will make TLS 1.3 > vulnerable again to downgrade attacks ... Why are you wondering about this? HRR is in the s

Re: [TLS] COSIC's look on TLS 1.3

2016-11-08 Thread Sean Turner
I let this message through the moderator queue despite the link to the blog; next time please send your comments directly to the list. Note that I wouldn’t necessarily expect anybody to pick up your points for you; PRs are welcome though. spt > On Nov 08, 2016, at 20:25, Roel Peeters wrote: