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 insecure protocols or

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 not

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

2015-05-08 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 standards

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 to do

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 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

2015-05-07 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

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 conversation