From: "igrigorik (Ilya Grigorik)" <ilya@...>
Date: 2012-05-27T14:57:37+09:00
Subject: [ruby-core:45272] [ruby-trunk - Feature #6503][Open] Support for the NPN extension to TLS/SSL


Issue #6503 has been reported by igrigorik (Ilya Grigorik).

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Feature #6503: Support for the NPN extension to TLS/SSL
https://bugs.ruby-lang.org/issues/6503

Author: igrigorik (Ilya Grigorik)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 


OpenSSL 1.0.1+ added support for Next Protocol Negotiation (NPN) extensions. A couple of relevant links:

- Google technical note: https://technotes.googlecode.com/git/nextprotoneg.html
- IETF draft: http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-02

NPN allows the client to negotiate the session protocol as part of the TLS handshake (ex, "http 1.1", or "spdy/v{1,2,3}"). To support SPDY we need NPN support within OpenSSL core in Ruby. The API is already implemented in OpenSSL 1.0.1+, so it's a matter of adding support in Ruby core. 

Sister bug for Python 3.3: http://bugs.python.org/issue14204


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