[asterisk-bugs] [JIRA] (ASTERISK-25101) Asterisk provides an empty DTLS fingerprint in SDP

[Ben Langfeld (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=226260#comment-226260 ] 

Ben Langfeld commented on ASTERISK-25101:
-----------------------------------------

Thanks Josh. I'll send a pull request shortly which fixes the example sip.conf to point this out. Right now, the config file says:

; Note that all configuration options except dtlsenable can be set at the general level.
; If set they will be present on the user or peer unless overridden with a different value.

> Asterisk provides an empty DTLS fingerprint in SDP
> --------------------------------------------------
>
>                 Key: ASTERISK-25101
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25101
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/SRTP, Resources/res_rtp_asterisk, Resources/res_srtp
>    Affects Versions: 11.17.1
>         Environment: Linux asterisk 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
>            Reporter: Ben Langfeld
>            Assignee: Ben Langfeld
>         Attachments: asterisk.log, asterisk.pem, extensions.conf, sip.conf
>
>
> Using SIP.js as a client over ws:// with the attached sip.conf and extensions.conf, a call from Chrome 39.0.2171.95 (64-bit) receives a response from Asterisk with an SDP containing an empty fingerprint: "a=fingerprint:SHA-256\n".
> The certificate in use can be found in asterisk.pem.
> I found some related material, but which did not address this issue directly: https://issues.asterisk.org/jira/browse/ASTERISK-22961



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