[asterisk-bugs] [JIRA] (ASTERISK-21416) Implement SDES-SRTP support in chan_gulp

[Kinsey Moore (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=205766#comment-205766 ] 

Kinsey Moore commented on ASTERISK-21416:
-----------------------------------------

After working some bugs out of the hacked chan_sip side of changing SRTP keys mid-call, mid-call re-keying of res_sip calls now works properly (after some tweaks).
                
> Implement SDES-SRTP support in chan_gulp
> ----------------------------------------
>
>                 Key: ASTERISK-21416
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21416
>             Project: Asterisk
>          Issue Type: New Feature
>      Security Level: None
>          Components: Channels/chan_gulp, Resources/res_srtp
>            Reporter: Matt Jordan
>            Assignee: Kinsey Moore
>              Labels: Asterisk12, NewSIP
>
> This task is to implement SDES-SRTP support in chan_gulp. This includes:
> * Refactoring out the setup of an SRTP session - given a set of SDP parameters - to minimize code duplication between chan_sip and chan_gulp. This would involve improving the code in sdp_crypto and sharing it between both channel drivers.
> * Defining and adding the necessary configuration parameters to an endpoint to enable encryption
> * Performing SRTP initialization on inbound requests and responding with the appropriate keys in a response
> * Transmitting SRTP keys given an endpoint's support for encryption
> * Re-initializing an SRTP session on a channel if a re-INVITE contains new keys
> * Adding automated tests to the test suite for chan_gulp that test negotiating SRTP keys

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