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    <div class="moz-cite-prefix"><tt>Hi Kaushik,<br>
        <br>
        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 ?<br>
        <br>
        Regards,<br>
      </tt>
      <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
      On 25.06.2014 09:26, kaushik parmar wrote:<br>
    </div>
    <blockquote
cite="mid:CAGzPE1--B9hOMc+_u8BAjE6JR8arUQ9Tq-PRiWa_Ryg8Zj3PLA@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hi&nbsp;<span
          style="font-size:13px;font-family:arial,sans-serif">Adrian,</span>
        <div><span style="font-family:arial,sans-serif;font-size:13px"><br>
          </span></div>
        <div><font face="arial, sans-serif">It is not OTR. Actually we
            have own&nbsp;algorithm&nbsp;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</font><span
            style="font-family:arial,sans-serif">&nbsp;</span><span
            style="font-family:arial,sans-serif">(and rtpproxy)</span><span
            style="font-family:arial,sans-serif">&nbsp;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? &nbsp;I
            am searching for file where opensips getting sip messages
            and from where it sends/forward sip messages.</span></div>
      </div>
      <div class="gmail_extra"><br>
        <br>
        <div class="gmail_quote">On Tue, Jun 24, 2014 at 3:30 PM, <span
            dir="ltr">&lt;<a moz-do-not-send="true"
              href="mailto:devel-request@lists.opensips.org"
              target="_blank">devel-request@lists.opensips.org</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">Send Devel
            mailing list submissions to<br>
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              href="mailto:devel@lists.opensips.org">devel@lists.opensips.org</a><br>
            <br>
            To subscribe or unsubscribe via the World Wide Web, visit<br>
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            or, via email, send a message with subject or body 'help' to<br>
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            <br>
            When replying, please edit your Subject line so it is more
            specific<br>
            than "Re: Contents of Devel digest..."<br>
            <br>
            <br>
            Today's Topics:<br>
            <br>
            &nbsp; &nbsp;1. Re: [OpenSIPS-Users] Encrypt and Decrypt sip &nbsp; &nbsp;
            &nbsp;signals<br>
            &nbsp; &nbsp; &nbsp; (<a moz-do-not-send="true"
              href="mailto:ag@ag-projects.com">ag@ag-projects.com</a>)<br>
            <br>
            <br>
----------------------------------------------------------------------<br>
            <br>
            Message: 1<br>
            Date: Mon, 23 Jun 2014 16:11:46 -0300<br>
            From: <a moz-do-not-send="true"
              href="mailto:ag@ag-projects.com">ag@ag-projects.com</a><br>
            Subject: Re: [OpenSIPS-Devel] [OpenSIPS-Users] Encrypt and
            Decrypt sip<br>
            &nbsp; &nbsp; &nbsp; &nbsp; signals<br>
            To: OpenSIPS users mailling list &lt;<a
              moz-do-not-send="true"
              href="mailto:users@lists.opensips.org">users@lists.opensips.org</a>&gt;<br>
            Cc: OpenSIPS devel mailling list &lt;<a
              moz-do-not-send="true"
              href="mailto:devel@lists.opensips.org">devel@lists.opensips.org</a>&gt;<br>
            Message-ID: &lt;<a moz-do-not-send="true"
              href="mailto:2EA9531B-F5B8-42EF-B513-395B6A493175@ag-projects.com">2EA9531B-F5B8-42EF-B513-395B6A493175@ag-projects.com</a>&gt;<br>
            Content-Type: text/plain; charset="us-ascii"<br>
            <br>
            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.<br>
            <br>
            Adrian<br>
            <br>
            On 23 Jun 2014, at 04:24, Olle E. Johansson &lt;<a
              moz-do-not-send="true" href="mailto:oej@edvina.net">oej@edvina.net</a>&gt;
            wrote:<br>
            <br>
            &gt;<br>
            &gt; On 23 Jun 2014, at 09:12, kaushik parmar &lt;<a
              moz-do-not-send="true" href="mailto:androidjpc0@gmail.com">androidjpc0@gmail.com</a>&gt;
            wrote:<br>
            &gt;<br>
            &gt;&gt; Hello All,<br>
            &gt;&gt;<br>
            &gt;&gt; My Android mobile SIP Dialer is sending Encrypted
            SIP messages<br>
            &gt; Is it actually using S/MIME to decrypt on a per-message
            basis or do you mean it's using TLS as a transport?<br>
            &gt;<br>
            &gt; /O<br>
            &gt;<br>
            &gt;&gt; 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.<br>
            &gt;&gt;<br>
            &gt;&gt; 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?<br>
            &gt;&gt;<br>
            &gt;&gt;<br>
            &gt;&gt; --<br>
            &gt;&gt; Kind regards,<br>
            &gt;&gt;<br>
            &gt;&gt; Kaushik Parmar<br>
            &gt;&gt; _______________________________________________<br>
            &gt;&gt; Users mailing list<br>
            &gt;&gt; <a moz-do-not-send="true"
              href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><br>
            &gt;&gt; <a moz-do-not-send="true"
              href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
              target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
            &gt;<br>
            &gt; _______________________________________________<br>
            &gt; Users mailing list<br>
            &gt; <a moz-do-not-send="true"
              href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><br>
            &gt; <a moz-do-not-send="true"
              href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
              target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
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            <br>
            <br>
            End of Devel Digest, Vol 72, Issue 27<br>
            *************************************<br>
          </blockquote>
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        -- <br>
        <div dir="ltr">
          <div>
            <div><font face="arial">Kind regards,</font></div>
            <div><font face="arial"><br>
              </font></div>
            <div><font face="arial">Kaushik Parmar</font></div>
          </div>
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      <pre wrap="">_______________________________________________
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</pre>
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