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, t

Re: SSL_MODE_SEND_FALLBACK_SCSV option

2014-10-26 Thread Aditya Kumar
er >>> that the second handshake with SSLv3 is a fallback of a previous >>> handshake announcing the availability of TLSv1 or better. >>> >>> Second question: When the client starts due to a MITM attack a >>> second handshake

Re: SSL_MODE_SEND_FALLBACK_SCSV option

2014-10-24 Thread Aditya Kumar
flag set. Hope this will clear all the confusions. -Aditya On Fri, Oct 24, 2014 at 5:35 PM, Jakob Bohm wrote: > On 24/10/2014 13:33, Aditya Kumar wrote: > >> Hi All, >> >> Thanks for your detailed responses, specially Florian Weimer and Matt >> Caswell. For the be

Re: SSL_MODE_SEND_FALLBACK_SCSV option

2014-10-24 Thread Aditya Kumar
Hi All, Thanks for your detailed responses, specially Florian Weimer and Matt Caswell. For the benefit of everyone and me, I am summarizing the thoughts which I have understood through all your replies. Please correct me wherever I am wrong. To summarize: 1. Best way to prevent POODLE atta

SSL_MODE_SEND_FALLBACK_SCSV option

2014-10-20 Thread Aditya Kumar
Hi All, I have a question regarding SSL_MODE_SEND_FALLBACK_SCSV introduced in OpenSSL 0.9.8zc as part of a preventive measure for SSL 3.0 POODLE vulnerability. I have client and server applications using OpenSSL for SSL/TLS communication. My question is that what will happen if I update my clien

PR#3400 and CVE-2014-0224

2014-08-11 Thread Aditya Kumar
Hi All, We are using OpenSSL version 0.9.8h. We take the security vulnerability fixes from latest release of OpenSSL 0.9.8 series and patch our internally used 0.9.8h. >From the OpenSSL release 0.9.8za, we took CVE-2014-0224 and merged it our OpenSSL code. But in latest release 0.9.8za, I see tha