Re: SSL_MODE_SEND_FALLBACK_SCSV option

2014-10-26 Thread Aditya Kumar
Thanks Florian, Jakob, Matt and everyone else. You guys are fascinating. Its a rocking community. Thanks again for your excellent support and taking pain to answer my repeated questions. On Mon, Oct 27, 2014 at 1:04 AM, Florian Weimer wrote: > * Aditya Kumar: > > > Suppose, the Server is patched

Re: SSL_MODE_SEND_FALLBACK_SCSV option

2014-10-26 Thread Florian Weimer
* Aditya Kumar: > Suppose, the Server is patched with the FALLBACK flag and its protocol is > set to TLSV1/SSLV23(with TLSV1 as the highest protocol) and then client > tries to connect to Server in TLSV1 and sets FALLBACK flag before > initiating communication with Server. Will the client be able

Re: SSLv23, POODLE and TLS_FALLBACK_SCSV

2014-10-26 Thread Florian Weimer
* Jaya Nageswar: > So when SSLv23 is set as the protocol at both client and server, Does > client automatically fall back and try with SSLV3 protocol if the > connection with TLSv1 fails. No, unless you have explicitly written retry code on your own. > Does Protocol downgrade dance means the cli

Re: openssl sends alert to a ServerHello that contains empty server_name

2014-10-26 Thread Bogdan Harjoc
It does seem other webservers send the server_name back with 0 as the length of extension_data. And the site in question seems to be running an old (6.1.26) jetty version. End of story, I guess. Thanks. On Fri, Oct 24, 2014 at 7:11 PM, Emilia Käsper wrote: > The server is sending back a servern

Re: SSL_MODE_SEND_FALLBACK_SCSV option

2014-10-26 Thread Aditya Kumar
Thanks Jakob and everyone for their prompt replies. My most of the doubts are cleared and I just want to confirm the protocol behavior in one particular scenario. Suppose, the Server is patched with the FALLBACK flag and its protocol is set to TLSV1/SSLV23(with TLSV1 as the highest protocol) and t

Re: SSLv23, POODLE and TLS_FALLBACK_SCSV

2014-10-26 Thread Jaya Nageswar
Thanks Florian Weimer for a prompt response. I have some follow up questions. We use the following options to set SSL Context using the following API with the below options. SSL_CTX_set_mode(ctx,SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER | SSL_MODE_AUTO_RETRY); So when SS