Re: [TLS] Comments on draft-rescorla-tls-renegotiate.txt
David-Sarah Hopwood <david-sarah@jacaranda.org> Sun, 08 November 2009 00:03 UTC
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Date: Sun, 08 Nov 2009 00:03:18 +0000
From: David-Sarah Hopwood <david-sarah@jacaranda.org>
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Subject: Re: [TLS] Comments on draft-rescorla-tls-renegotiate.txt
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Michael D'Errico wrote: >> Another issue is that a server that supports the extension can refuse >> the renegotiation. The current draft is not clear about what the client >> and server behaviour should be in that case. >> >> Suggestion: >> >> If a ClientHello that is requesting to resume a previous session >> contains a Renegotiation_Info extension, and the server supports the >> extension but wishes to refuse the renegotiation, it SHOULD reply >> with a zero-length Renegotiation_Info. > > The server already has to reply with an empty Renegotiation_Info > extension. That is what happens on an initial handshake even when > resuming a previous session, and also for a session_ticket resume. [...] > No, session resumption is no different w.r.t. the Renegotiation_Info > extension than a full handshake. The info is always empty on the > first handshake for a connection, even when resuming a previous session. > > As a result, you do not need to store the verify_data from the finished > messages in your session cache. Yes, you're right. I was confused. -- David-Sarah Hopwood ⚥ http://davidsarah.livejournal.com
- [TLS] Comments on draft-rescorla-tls-renegotiate.… David-Sarah Hopwood
- Re: [TLS] Comments on draft-rescorla-tls-renegoti… David-Sarah Hopwood
- Re: [TLS] Comments on draft-rescorla-tls-renegoti… Michael D'Errico
- Re: [TLS] Comments on draft-rescorla-tls-renegoti… David-Sarah Hopwood
- Re: [TLS] Comments on draft-rescorla-tls-renegoti… Martin Rex