Re: [TLS] Request for mail testserver with TLS accepting renegotiation
"Yngve N. Pettersen" <yngve@opera.com> Wed, 27 July 2011 02:04 UTC
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To: Matt McCutchen <matt@mattmccutchen.net>
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Date: Wed, 27 Jul 2011 04:04:15 +0200
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From: "Yngve N. Pettersen" <yngve@opera.com>
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Cc: tls@ietf.org
Subject: Re: [TLS] Request for mail testserver with TLS accepting renegotiation
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On Wed, 27 Jul 2011 02:05:22 +0200, Matt McCutchen <matt@mattmccutchen.net> wrote: > On Wed, 2011-07-27 at 01:55 +0200, Yngve N. Pettersen wrote: >> I have recently upgraded my TLS Prober to test email servers (IMAP, POP, >> SMTP). >> >> However, I am uncertain about whether the test for testing client >> initiated renegotiation works properly, particularly since a test of >> 300000+ servers failed to detect a single email server that accepted it >> (or requested it). >> >> It might of course be that all email servers have this functionality >> disabled, but for now I am assuming something is wrong about how the >> test >> itself works. >> >> If anyone have an email server that is configured to accept client >> initiated renegotiation that I could test, I would appreciate it. > > Is your test in any way specific to email protocols? If you just run > "openssl s_server" interactively, it seems to accept all > client-initiated renegotiation by default (at least when renegotiation > indication is used). I already know it works against HTTPS servers (which gives some problematic statistics for unpatched servers), but the tests against email servers follow a different pattern, since the email servers send content before the client send data, so there could be a difference in behavior. Possibilities include having to get the start line from the server before trying renegotiation, rather than try immediately. While I might try configuring a OpenSSL testserver, I would prefer to test against the "real thing". -- Sincerely, Yngve N. Pettersen ******************************************************************** Senior Developer Email: yngve@opera.com Opera Software ASA http://www.opera.com/ Phone: +47 24 16 42 60 Fax: +47 24 16 40 01 ********************************************************************
- [TLS] Request for mail testserver with TLS accept… Yngve N. Pettersen
- Re: [TLS] Request for mail testserver with TLS ac… Matt McCutchen
- Re: [TLS] Request for mail testserver with TLS ac… Yngve N. Pettersen