[asterisk-bugs] [Asterisk 0017563]: SRTP (SRTP unprotect: authentication failure)

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17563 
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Reported By:                Alexcr
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17563
Category:                   Resources/res_srtp
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           SVN 
JIRA:                       SWP-1795 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-06-29 04:04 CDT
Last Modified:              2010-07-20 10:10 CDT
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Summary:                    SRTP (SRTP unprotect: authentication failure)
Description: 
I setup asterisk-trunk with res_srtp 

Test with Snom320 and Eyalink T26P is failed with error

[Jun 24 17:08:08] DEBUG[629] res_srtp.c: SRTP unprotect: authentication
failure
[Jun 24 17:08:08] WARNING[629] res_rtp_asterisk.c: RTCP Read error:
Success.  Hanging up.

with eyebeam-1.5 all work fine if add TLS support on both.
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 (0124741) st (reporter) - 2010-07-20 10:10
 https://issues.asterisk.org/view.php?id=17563#c124741 
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This workaround was usefull with Snom 3x0 phones and the SRTP branch nearly
a year ago. For some reasons I do not understand the decryption of only the
first paket failed.

Using Asterisk trunk (19.07.2010) and Snom 360 (7.3.30) the sitiation is
different.

Snom calling Asterisk and listening to some Playback() : fine

Asterisk (call file) calling Snom: Error message or silence if workaround
is used

What confuses me is that it does work for some phone types and fails if
others are used. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-07-20 10:10 st             Note Added: 0124741                          
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