[Freeswitch-users] To decypt webrtc audio

Fri Oct 31 15:51:30 MSK 2014

The tool from pjsip mentioned above requires the keys for the srtp
decryption.  Does the one you mention do it differently?

On Friday, October 31, 2014, Ben Langfeld <ben at langfeld.co.uk> wrote:

> Anthony, I think I'm not understanding your concern. Could you explain
> what you mean by logging the keys?
>
> On 30 October 2014 21:01, Anthony Minessale <anthony.minessale at gmail.com
> <javascript:_e(%7B%7D,'cvml','anthony.minessale at gmail.com');>> wrote:
>
>> The bigger question is how to log the keys without compromising the point
>> of why its all encrypted.
>> It would take some careful consideration.
>>
>>
>> On Thu, Oct 30, 2014 at 12:32 PM, Ben Langfeld <ben at langfeld.co.uk
>> <javascript:_e(%7B%7D,'cvml','ben at langfeld.co.uk');>> wrote:
>>
>>> rtpengine does indeed allow decryption of DTLS encrypted RTP. I use it
>>> in front of Asterisk 1.4 for exactly that (and ICE resolution).
>>>
>>> On 30 October 2014 14:55, Carlos Ruiz Díaz <carlos.ruizdiaz at gmail.com
>>> <javascript:_e(%7B%7D,'cvml','carlos.ruizdiaz at gmail.com');>> wrote:
>>>
>>>> rtpengine doesn't provide any mean to do any kind of decryption. The
>>>> keys, however, are easily accessible if you are willing to modify the
>>>> original software to create such functionality.
>>>>
>>>> Regards,
>>>> Carlos
>>>>
>>>> On Thu, Oct 30, 2014 at 10:47 AM, Anthony Minessale <
>>>> anthony.minessale at gmail.com
>>>> <javascript:_e(%7B%7D,'cvml','anthony.minessale at gmail.com');>> wrote:
>>>>
>>>>> This is a philosophical debate as to weather or not making the key
>>>>> available somewhere it can be obtained from nullifies the intended security.
>>>>>
>>>>>
>>>>> On Thu, Oct 30, 2014 at 5:33 AM, Ben Langfeld <ben at langfeld.co.uk
>>>>> <javascript:_e(%7B%7D,'cvml','ben at langfeld.co.uk');>> wrote:
>>>>>
>>>>>> Look into rtpengine and perhaps Kamailio to control it.
>>>>>>
>>>>>> On 30 October 2014 04:41, Varghese Paul <varghesepaul87 at gmail.com
>>>>>> <javascript:_e(%7B%7D,'cvml','varghesepaul87 at gmail.com');>> wrote:
>>>>>>
>>>>>>> Hi all,
>>>>>>>
>>>>>>> We are using freeswitch for handling webrtc calls and the
>>>>>>> negotiation in DTLS mode.
>>>>>>>
>>>>>>> We are looking for a tool to decrypt the traffic between the webrtc
>>>>>>> client and freeswitch server. I know there is already a tool pcaputils from
>>>>>>> PJSIP for decrypting the SRTP traffic. Since we are using in DTLS mode we
>>>>>>> can't use this.
>>>>>>>
>>>>>>> Can any one suggest any tool/method to decrypt the webrtc audio?
>>>>>>>
>>>>>>> Regards
>>>>>>>
>>>>>>> Varghese Paul
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _________________________________________________________________________
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>>>>>>>
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>>>>>>>
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>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _________________________________________________________________________
>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>> consulting at freeswitch.org
>>>>>> <javascript:_e(%7B%7D,'cvml','consulting at freeswitch.org');>
>>>>>> http://www.freeswitchsolutions.com
>>>>>>
>>>>>> Official FreeSWITCH Sites
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>>>>>> http://www.cluecon.com
>>>>>>
>>>>>> FreeSWITCH-users mailing list
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>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>>>>>
>>>>> ☞ http://freeswitch.org/  ☞ http://cluecon.com/  ☞
>>>>> http://twitter.com/FreeSWITCH
>>>>> ☞ irc.freenode.net #freeswitch ☞ *http://freeswitch.org/g+
>>>>> <http://freeswitch.org/g+>*
>>>>>
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>>>>>
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> <javascript:_e(%7B%7D,'cvml','consulting at freeswitch.org');>
>>>>> http://www.freeswitchsolutions.com
>>>>>
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>>>>> http://www.cluecon.com
>>>>>
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>>>>
>>>>
>>>>
>>>> --
>>>> Carlos
>>>> http://caruizdiaz.com
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> <javascript:_e(%7B%7D,'cvml','consulting at freeswitch.org');>
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> Official FreeSWITCH Sites
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>>>>
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>>>
>>>
>>> _________________________________________________________________________
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>>> http://www.freeswitchsolutions.com
>>>
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>>
>>
>>
>> --
>> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>>
>> ☞ http://freeswitch.org/  ☞ http://cluecon.com/  ☞
>> http://twitter.com/FreeSWITCH
>> ☞ irc.freenode.net #freeswitch ☞ *http://freeswitch.org/g+
>> <http://freeswitch.org/g+>*
>>
>> ClueCon Weekly Development Call
>> ☎ sip:888 at conference.freeswitch.org
>> <javascript:_e(%7B%7D,'cvml','sip:888 at conference.freeswitch.org');>  ☎
>> +19193869900
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> <javascript:_e(%7B%7D,'cvml','consulting at freeswitch.org');>
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
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>>
>
>

-- 
Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬

☞ http://freeswitch.org/  ☞ http://cluecon.com/  ☞
http://twitter.com/FreeSWITCH
☞ irc.freenode.net #freeswitch ☞ *http://freeswitch.org/g+
<http://freeswitch.org/g+>*

ClueCon Weekly Development Call
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