[Freeswitch-users] To decypt webrtc audio

Anthony Minessale anthony.minessale at gmail.com
Fri Oct 31 02:01:29 MSK 2014


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> 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>
> 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> 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>
>>> wrote:
>>>
>>>> Look into rtpengine and perhaps Kamailio to control it.
>>>>
>>>> On 30 October 2014 04:41, Varghese Paul <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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>>>
>>>
>>>
>>> --
>>> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>>>
>>>http://freeswitch.org/http://cluecon.com/>>> http://twitter.com/FreeSWITCH
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>>>
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>>
>>
>>
>> --
>> Carlos
>> http://caruizdiaz.com
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
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>
>
> _________________________________________________________________________
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>
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>
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-- 
Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬

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