Re: [TLS] draft-green-tls-static-dh-in-tls13-01

2017-07-20 Thread Simon Friedberger
On 20/07/17 21:21, Carl Mehner wrote: > On Thu, Jul 20, 2017 at 10:38 AM, Simon Friedberger > wrote: > I think using TLS 1.2 and waiting will only work up to a point. When > the regulators do require TLS 1.3 (and that may be years and years > away), enterprises still need som

Re: [TLS] draft-green-tls-static-dh-in-tls13-01

2017-07-20 Thread Simon Friedberger
I would like to point out that a lot of this discussion seems to hinge on the following argument: On 17/07/17 13:04, Roland Dobbins wrote: > On 16 Jul 2017, at 11:14, Salz, Rich wrote: > >> I really want to hear an answer to that question from folks who say >> they need TLS 1.3 but without it. >

Re: [TLS] Malware (was Re: draft-green-tls-static-dh-in-tls13-01)

2017-07-17 Thread Simon Friedberger
On 17/07/17 17:32, Roland Dobbins wrote: > Sure - detecting attempted additional compromise and lateral movement > utilizing exploits within TLS-encrypted traffic. This is about decrypting traffic inside your network. > Another is detecting (and subsequent blocking of) the download of > malware

Re: [TLS] Last Call: (ECDHE_PSK with AES-GCM and AES-CCM Cipher Suites for Transport Layer Security (TLS)) to Proposed Standard

2017-05-04 Thread Simon Friedberger
Nits: RFC 4279 reference is missing. "TLS 1.3 and above version, " should probably be "TLS 1.3 and above" or "TLS 1.3 and higher versions" On 04/05/17 18:41, The IESG wrote: > The IESG has received a request from the Transport Layer Security WG > (tls) to consider the following

Re: [TLS] security considerations for draft-rescorla-tls-subcerts

2017-04-05 Thread Simon Friedberger
e increase in security weighted with the difficulty of > obtaining > such short-lived certificates from a CA probably does not justify the > extra > complexity of adding subcerts. > > > @Simon Friedberger Do you feel that short lived CA certificates are > actually deplo

Re: [TLS] security considerations for draft-rescorla-tls-subcerts

2017-04-05 Thread Simon Friedberger
I agree, that's why I only see a security gain if the theft of the certificate remains undetected. On 05/04/17 14:35, Salz, Rich wrote: >>Server operators >>often want to create short-lived certificates for servers in low- >>trust zones such as CDNs or remote data centers. > But as cu

Re: [TLS] security considerations for draft-rescorla-tls-subcerts

2017-04-05 Thread Simon Friedberger
It seems the intention behind short lived certificates is pretty clear: Server operators often want to create short-lived certificates for servers in low- trust zones such as CDNs or remote data centers. But even if this is true it needs to be analyzed why server operators want to do th