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Very Hot Topic (More than 25 Replies) Encryption: TLS, SRTP & ZRTP (Read 130423 times)
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Re: Encryption: TLS, SRTP & ZRTP
Reply #120 - 02. Mar 2012 at 15:10
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There is no complete "200 OK" message received.
Is there a way to test with that server for my own? Can I get an account? I don't need to initiate outgoing calls. Registration is all I want to test with.
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #121 - 02. Mar 2012 at 15:30
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After Freeswitch restart, registration became successful.
In att PhonerLite debug.
  

success_register.txt ( 4 KB | Downloads )
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Re: Encryption: TLS, SRTP & ZRTP
Reply #122 - 02. Mar 2012 at 15:41
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Phoner Admin wrote on 02. Mar 2012 at 15:10:
There is no complete "200 OK" message received.
Is there a way to test with that server for my own? Can I get an account? I don't need to initiate outgoing calls. Registration is all I want to test with.


Check your inbox for account details.
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #123 - 02. Mar 2012 at 16:07
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Thanks, but registration fails, because the server demands a client certificate and doesn't accept the one I provide.
If your registration works now, maybe it is a problem in Freeswitch?
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #124 - 02. Mar 2012 at 16:21
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Phoner Admin wrote on 02. Mar 2012 at 16:07:
Thanks, but registration fails, because the server demands a client certificate and doesn't accept the one I provide.
If your registration works now, maybe it is a problem in Freeswitch?


Oh, sorry, I changed the configuration, now FS does not request certificate.
But, you are right, now problem does not occur.
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #125 - 02. Mar 2012 at 16:25
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Now it works here well too. Are there any free numbers I can call to check SRTP/ZRTP?
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #126 - 05. Mar 2012 at 16:02
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Hello!
It starts again (broken 200 ok messages):

16:59:12,249: R: 120 bytes parse failed X.X.X.X:5061 (TLS)
SIP/2.0 200 OK
Via: SIP/2.0/TLS Y.Y.Y.Y:54339;branch=z9hG4bK00a0c06f4165e1118bc105fce7032a59;rport=54339;alias

-------------------------------------------
16:59:12,249: R: 53 bytes parse failed X.X.X.X:5061 (TLS)
From: <sip:1000@X.X.X.X>;tag=2032818304
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #127 - 05. Mar 2012 at 20:12
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I think I found a possible bug. Can you please download the latest beta version?
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #128 - 06. Mar 2012 at 07:14
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Phoner Admin wrote on 05. Mar 2012 at 20:12:
I think I found a possible bug. Can you please download the latest beta version?


Everything looks fine. 
I tried to register PL 1.96 with FS - an error the same.
Immediately after that (nothing changing in Freeswitch) tried 1.97Beta - registration successful.
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #129 - 06. Mar 2012 at 07:37
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Phoner Admin wrote on 02. Mar 2012 at 16:25:
Now it works here well too. Are there any free numbers I can call to check SRTP/ZRTP?


Check your inbox for test account details.
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #130 - 06. Mar 2012 at 08:14
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Nice to hear that. That was no problem related to TLS, but normal TCP fragmentation.
I will test SRTP/ZRTP later. Thanks.
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #131 - 22. Mar 2012 at 04:35
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What is ZRTP masquerading ? 

I think the help page on the website needs a thorough update.
Or if you can move to a wiki, users can also update. 

Shouldn't phonerlite go into a next phase by the way with multiple account capability ?!
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #132 - 22. Mar 2012 at 08:41
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ZRTP negotiation packets are no real RTP packets. Some servers (e.g. Freeswitch) don't forward these messages. Masquerading might help in these situations. A description can be found here.
PhonerLite is just a hobby of mine. Only programming makes fun - writing documentation is no fun for me Wink

It is not planned to support multiple profiles simultaneously in near future. Sorry.
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #133 - 15. Oct 2012 at 08:06
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Please add capability to have mandatory SRTP, ZRTP (just like "connection type is fixed" for TLS etc.). 
So if SRTP can't be done, then it won't do the call. Similarly for ZRTP.
Please add like "RTP encryption is fixed".
This is there in many major hard phones as security feature
  
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Re: Encryption: TLS, SRTP & ZRTP
Reply #134 - 15. Oct 2012 at 13:16
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ZRTP will be negotiated after call establishment. So if you are initiate a call and the remote party answers the call, media path is established and ZRTP negotiation is done. If no ZRTP could be established, you want to disconnect the call automatically? I don't like that! The remote user doesn't know why you are disconnect the call. Both parties say there "hello" and then the call drops? Sorry, but I won't do that.
If you really need such feature, just use one of that other implementations or hard phones.
  
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