Re: [TLS] WGLC for draft-ietf-tls-ticketrequests
Viktor Dukhovni <ietf-dane@dukhovni.org> Thu, 23 January 2020 02:14 UTC
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From: Viktor Dukhovni <ietf-dane@dukhovni.org>
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Subject: Re: [TLS] WGLC for draft-ietf-tls-ticketrequests
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On Wed, Jan 22, 2020 at 05:12:34PM -0800, Watson Ladd wrote: > > - either the TLS server says "here's a ticket and you MUST or MAY > > replace the one you already had" > > > > or > > > > - the TLS client gets to ask for no unnecessary new tickets > > > > Now the first alternative would be infeasible to adopt because it would > > require new OpenSSL callback APIs, and anyways would be a more invasive > > change to TLS than the ticketrequest extension makes. > > Nothing says you have to remember tickets, so unless I'm missing > something the semantics already are the second one. I want to use tickets for resumption, so naturally I have to remember them. I also don't actually get to directly see the tickets, rather OpenSSL invokes a "new_session_cb" callback after updating the current session with newly received tickets. Since I have a shared cache, I have to perform the work of storing the updated sesion, so that other SMTP delivery agents get to see the new ticket. I can't just ignore the ticket, since the reason for the new ticket may be that the old one has expired, either after some period of reuse, or because the server only ever issues single-use tickets. The deployed base of Postfix servers issues multi-use tickets (always, there's no extension to tell me otherwise), and sends zero tickets on resumption, so I need to not just throw away tickets that are still valid. -- Viktor.
- [TLS] WGLC for draft-ietf-tls-ticketrequests Sean Turner
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Salz, Rich
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Martin Thomson
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Christopher Wood
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Christopher Wood
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Christopher Wood
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Christopher Wood
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Christopher Wood
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Hubert Kario
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Christopher Wood
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Hubert Kario
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Hubert Kario
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Benjamin Kaduk
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Jeremy Harris
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Benjamin Kaduk
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Tommy Pauly
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Tommy Pauly
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests David Schinazi
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Christopher Wood
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Martin Thomson
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests David Schinazi
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests David Schinazi
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Benjamin Kaduk
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Benjamin Kaduk
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Sean Turner
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Hubert Kario
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Martin Thomson
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Martin Thomson
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Eric Rescorla
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Salz, Rich
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Salz, Rich
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Eric Rescorla
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Watson Ladd
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Hubert Kario
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Watson Ladd
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Tommy Pauly
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Salz, Rich
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Tommy Pauly
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Tommy Pauly
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Stephen Farrell
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Salz, Rich
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Salz, Rich
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Salz, Rich
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Tommy Pauly
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Watson Ladd
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Watson Ladd
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Tommy Pauly
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Eric Rescorla
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Eric Rescorla
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Eric Rescorla
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Nico Williams
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Tommy Pauly
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Bill Frantz
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Eric Rescorla
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Tommy Pauly
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Eric Rescorla
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Ben Schwartz
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Ben Schwartz
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Daniel Migault
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Rob Sayre
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Hubert Kario
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Jeremy Harris
- Re: [TLS] WGLC for draft-ietf-tls-ticketrequests Viktor Dukhovni