[asterisk-bugs] [JIRA] (ASTERISK-25265) [patch]DTLS Failure when calling WebRTC-peer on Firefox 39 - add ECDH support and fallback to prime256v1

[Mark Duncan (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=227218#comment-227218 ] 

Mark Duncan commented on ASTERISK-25265:
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Krzysztof, what version of OpenSSL are you using and on what distro?  I haven't tried 13.5 yet, but I've had no problems on 13.1 and 13.4 with it.  It seems like it may be a problem with your OpenSSL library.  But, no, there's no additional configuration needed (aside from running ./configure of course).  

> [patch]DTLS Failure when calling WebRTC-peer on Firefox 39 - add ECDH support and fallback to prime256v1
> --------------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-25265
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25265
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/BuildSystem, Resources/res_rtp_asterisk
>    Affects Versions: SVN, 13.1.0, 13.4.0
>            Reporter: Stefan Engström
>         Attachments: asterisk-ecdh.patch
>
>
> This issue has already been reported by http://forums.asterisk.org/viewtopic.php?f=1&t=95417
> Whenever calling a webrtc peer which uses firefox version 39 (or 40 beta), I get  error messages like "res_rtp_asterisk.c: DTLS failure occurred on RTP instance '0x7fefe800e9e8' due to reason 'no shared cipher', terminating" after the SDP exchange, and the call terminates.
> Hopefully you can reproduce it yourself on the latest version of asterisk by using
> http://www.sipml5.org/call.htm (I'm not sure if asterisk is doing anything wrong or just firefox/sipml5)
> I will provide more info if it's not easily reproducable.



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