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

[Bogdan-Andrei Iancu]

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 Developer
http://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 
> <mailto:devel-request at lists.opensips.org>> wrote:
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>     Today's Topics:
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>        1. Re: [OpenSIPS-Users] Encrypt and Decrypt sip  signals
>           (ag at ag-projects.com <mailto:ag at ag-projects.com>)
>
>
>     ----------------------------------------------------------------------
>
>     Message: 1
>     Date: Mon, 23 Jun 2014 16:11:46 -0300
>     From: ag at ag-projects.com <mailto: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
>     <mailto:users at lists.opensips.org>>
>     Cc: OpenSIPS devel mailling list <devel at lists.opensips.org
>     <mailto:devel at lists.opensips.org>>
>     Message-ID: <2EA9531B-F5B8-42EF-B513-395B6A493175 at ag-projects.com
>     <mailto: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
>     <mailto:oej at edvina.net>> wrote:
>
>     >
>     > On 23 Jun 2014, at 09:12, kaushik parmar <androidjpc0 at gmail.com
>     <mailto: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
>     >> _______________________________________________
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>     >> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>     >
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>     End of Devel Digest, Vol 72, Issue 27
>     *************************************
>
>
>
>
> -- 
> Kind regards,
>
> Kaushik Parmar
>
>
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