[OpenSIPS-Devel] Devel Digest, Vol 72, Issue 27

[kaushik parmar]

Hi,

I am encrypting SIP and RTP message before sending it from sip mobile
dialer and it sends UDP packet over network. So no one can know about the
type (SIP or RTP) of packet until we decrypt it. This is for secured call
and also solution for voip blocked countries.

I want to know which file or module is used in opensips to get and send udp
packets? when opensips receives message , i will decrypt it and before send
response to mobile dialer , i will encrypt the message. Same for rtpproxy
server.




On Wed, Jun 25, 2014 at 2:41 PM, Bogdan-Andrei Iancu <bogdan at opensips.org>
wrote:

>  Hi Kaushik,
>
> So the while SIP package is encrypted . It is not easy to add hooks before
> the SIP stack (between transport layer and SIP stack), but can be done -
> could you provide more details how the encryption / decryption works, if
> over UDP or TCP, etc ?
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
> On 25.06.2014 09:26, kaushik parmar wrote:
>
> Hi Adrian,
>
>  It is not OTR. Actually we have own algorithm for encryption and
> decryption of sip and rtp packets. We implemented it in our SIP mobile
> dialer. Now we need to implement it on proxy server. I want to add
> encryption and decryption code in opensips (and rtpproxy) so opensips
> (rtpproxy) can come to know that it is SIP and rtp packets. Can you please
> tell me where should i add this code in opensips?  I am searching for file
> where opensips getting sip messages and from where it sends/forward sip
> messages.
>
>
> On Tue, Jun 24, 2014 at 3:30 PM, <devel-request at lists.opensips.org> wrote:
>
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>> Today's Topics:
>>
>>    1. Re: [OpenSIPS-Users] Encrypt and Decrypt sip      signals
>>       (ag at ag-projects.com)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 23 Jun 2014 16:11:46 -0300
>> From: ag at ag-projects.com
>> Subject: Re: [OpenSIPS-Devel] [OpenSIPS-Users] Encrypt and Decrypt sip
>>         signals
>> To: OpenSIPS users mailling list <users at lists.opensips.org>
>> Cc: OpenSIPS devel mailling list <devel at lists.opensips.org>
>> Message-ID: <2EA9531B-F5B8-42EF-B513-395B6A493175 at ag-projects.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Perhaps is using OTR? In this case the encryption is end-to-end and
>> cannot be handled by an intermediary as it defies the purpose.
>>
>> Adrian
>>
>> On 23 Jun 2014, at 04:24, Olle E. Johansson <oej at edvina.net> wrote:
>>
>> >
>> > On 23 Jun 2014, at 09:12, kaushik parmar <androidjpc0 at gmail.com> wrote:
>> >
>> >> Hello All,
>> >>
>> >> My Android mobile SIP Dialer is sending Encrypted SIP messages
>> > Is it actually using S/MIME to decrypt on a per-message basis or do you
>> mean it's using TLS as a transport?
>> >
>> > /O
>> >
>> >> and i want to decrypt that SIP message on opensips proxy server.
>> Opensips server will Decrypt the sip request and forward it to my voip
>> server. Same way it will take sip request of voip switch , Encrypt it and
>> send Encrypted SIP request to Android mobile Application.
>> >>
>> >> Can anyone tell me where should i write Encryption and Decryption code
>> in opensips? Is there any particular file in which i can write my
>> encryption code?
>> >>
>> >>
>> >> --
>> >> Kind regards,
>> >>
>> >> Kaushik Parmar
>> >> _______________________________________________
>> >> Users mailing list
>> >> Users at lists.opensips.org
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>> >
>> > _______________________________________________
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>
>
>
>  --
>  Kind regards,
>
>  Kaushik Parmar
>
>
> _______________________________________________
> Devel mailing listDevel at lists.opensips.orghttp://lists.opensips.org/cgi-bin/mailman/listinfo/devel
>
>
>


-- 
Kind regards,

Kaushik Parmar
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