Re: [openssl-dev] [openssl-users] Kerberos

2015-05-14 Thread Jeffrey Altman
On 5/13/2015 10:19 AM, Matt Caswell wrote: > > > On 08/05/15 09:40, Matt Caswell wrote: >> >> >> On 08/05/15 02:28, Jeffrey Altman wrote: >> >>> Regardless, the inability to improve the support in this area has left >>> the those organizations that rely upon 2712 with the choice of use >>> insecu

Re: [openssl-dev] [openssl-users] Kerberos

2015-05-13 Thread Matt Caswell
On 08/05/15 09:40, Matt Caswell wrote: > > > On 08/05/15 02:28, Jeffrey Altman wrote: > >> Regardless, the inability to improve the support in this area has left >> the those organizations that rely upon 2712 with the choice of use >> insecure protocols or re-implement the applications. I do

Re: [openssl-dev] [openssl-users] Kerberos

2015-05-08 Thread Nico Williams
I should have mentioned NPN and ALPN too. A TLS application could use ALPN to negotiate the use of a variant of the real application protocol, with the variant starting with a channel-bound GSS context token exchange. The ALPN approach can optimize the GSS mechanism negotiation, at the price of

Re: [openssl-dev] [openssl-users] Kerberos

2015-05-08 Thread Nico Williams
On Fri, May 08, 2015 at 05:17:29PM -0400, Nathaniel McCallum wrote: > I agree that the current situation is not sustainable. I was only > hoping to start a conversation about how to improve the situation. RFC2712 uses Authenticator, which is an ASN.1 type quite clearly NOT intended for use outside

Re: [openssl-dev] [openssl-users] Kerberos

2015-05-08 Thread Jeffrey Altman
On 5/8/2015 5:17 PM, Nathaniel McCallum wrote: > > I agree that the current situation is not sustainable. I was only > hoping to start a conversation about how to improve the situation. > > For instance, there is this: http://tls-kdh.arpa2.net/ > > I don't see any reason this couldn't be expanded

Re: [openssl-dev] [openssl-users] Kerberos

2015-05-08 Thread Nathaniel McCallum
On Thu, 2015-05-07 at 21:28 -0400, Jeffrey Altman wrote: > On 5/7/2015 8:40 PM, Viktor Dukhovni wrote: > > On Thu, May 07, 2015 at 08:00:17PM -0400, Nathaniel McCallum wrote: > > > > > There have been some conversations behind Red Hat doors about > > > improving the state of Kerberos/TLS in both s

Re: [openssl-dev] [openssl-users] Kerberos

2015-05-08 Thread Matt Caswell
On 08/05/15 02:28, Jeffrey Altman wrote: > Regardless, the inability to improve the support in this area has left > the those organizations that rely upon 2712 with the choice of use > insecure protocols or re-implement the applications. I do not believe > that any sane OS or application vendor

Re: [openssl-dev] [openssl-users] Kerberos

2015-05-07 Thread Jeffrey Altman
On 5/7/2015 8:40 PM, Viktor Dukhovni wrote: > On Thu, May 07, 2015 at 08:00:17PM -0400, Nathaniel McCallum wrote: > >> There have been some conversations behind Red Hat doors about >> improving the state of Kerberos/TLS in both standards and >> implementations. Could we maybe have a broader conver

Re: [openssl-dev] [openssl-users] Kerberos

2015-05-07 Thread Viktor Dukhovni
On Thu, May 07, 2015 at 08:00:17PM -0400, Nathaniel McCallum wrote: > There have been some conversations behind Red Hat doors about > improving the state of Kerberos/TLS in both standards and > implementations. Could we maybe have a broader conversation about how > to fix this situation? To be bl