search for: zrtp

Hi All, I've been reading about Phil Zimmermann's ZRTP encryption scheme for SIP clients. This seems attactive but I don't use soft phones. I'm guessing that we'd need ZRTP support in Asterisk in order to use it to secure calls from hard phones. There seem to be issues with SRTP key exhange between various devices. So much so that the IE...

What's the status of ZRTP supported by Asterisk? There was some discussion on the -dev list and -users list, but it was inconclusive. At about the same timeframe, a bug (#0010024) was opened and updated for several months, but has been "suspended" since late 2007. Does any version (1.4.x, 1.6.x) of Asterisk supp...

Hello List I am very interested in developing a research project on security protocol for VoIP, under the GPL. For some time I have been reviewing ZRTP, I would like to know the opinion having regard to whether and under asterisk, but I see that this closed implementations according am Http://bugs.digium.com/view.php?id=10024 Are Zphone and ZRTP the future for the Voip Security? Opinions? -------------- next part -------------- An HTML attachmen...

Hello. Do I understand correctly that the current implementation res_pjsip does not support ZRTP? http://lists.digium.com/pipermail/asterisk-dev/2013-December/064401.html Nothing has changed since 2013? P.S. I greatly regret that moved from chan_sip to res_pjsip. Previously used very much lacking, and much of the promise failed. Dmitriy Serov. -------------- next part -------------- An HTM...

Hello, I am searching for a solution to encrypt authentication from Asterisk server to clients. Searching srtp seem to encrypt traffic, I just want client authentication with encryption. Can someone point to the right direction? has anybody used ZRTP? experience with ZRTP? Thanks, _motty

...> >> Hello, >> I am searching for a solution to encrypt authentication from Asterisk >> server to clients. Searching srtp seem to encrypt traffic, I just >> want client authentication with encryption. Can someone point to the >> right direction? has anybody used ZRTP? experience with ZRTP? >> >> Thanks, >> _motty > > You want SIP over TLS. That encrypts the signalling. SRTP and ZRTP encrypt the actual voice traffic. Cheers, j -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com...

Dear people, does anybody try the ZRTP patch for Asterisk in order to have ZRTP encrytion among SIP/RTP calls ??? In other words, did anybody succesfully implement ZRTP in Asterisk ??? Any documentation about it ??? Special thanks Alejandro

05.10.2015 23:24, Joshua Colp ?????: > On 15-10-05 05:22 PM, Dmitriy Serov wrote: >> Hello. Do I understand correctly that the current implementation >> res_pjsip does not support ZRTP? >> http://lists.digium.com/pipermail/asterisk-dev/2013-December/064401.html > > ZRTP is not supported in Asterisk itself. > >> Nothing has changed since 2013? P.S. I greatly regret that moved from >> chan_sip to res_pjsip. Previously used very much lacking, and much of &...

...:22, Joshua Colp ?????: > On 15-10-05 05:58 PM, Dmitriy Serov wrote: >> 05.10.2015 23:24, Joshua Colp ?????: >>> On 15-10-05 05:22 PM, Dmitriy Serov wrote: >>>> Hello. Do I understand correctly that the current implementation >>>> res_pjsip does not support ZRTP? >>>> http://lists.digium.com/pipermail/asterisk-dev/2013-December/064401.html >>>> >>> >>> ZRTP is not supported in Asterisk itself. >>> >>>> Nothing has changed since 2013? P.S. I greatly regret that moved from >>>> chan_...

Hello, I have a user that prefers Soft SIP phone install on his laptop, for security reasons I have enable TLS on our Asterisk server to support TLS authentication, It works well with hard phones. Has anybody in this forum use SIP Soft phones with TLS authentication enabled? Any suggestions? Thanks, Motty -------------- next part -------------- An HTML attachment was scrubbed... URL:

Dear all, I have an Asterisk server with SIP and IAX softphones clients, and I need to encrypt the voip calls among them: *For SIP clients I use Twinkle which implements the ZRTP/SRTP encryption mechanism client-2-client; I read it's the better security mechanism nowadays created by Phill Zimmerman who created PGP. *For IAX clients I used Kiax but I don't know exactly if there is any encryption mechanism for this protocol. Two short questions: 1) Do you think ZRT...

Dear all, I have Asterisk 1.4.13 and I need to use encryption among Asterisk and my SIP users, and with the RTP data interchanged among users. I prefer the use of ZRTP/SRTP because we use Twinkle and X-Lite/Zfone as our voip clients and they support these encryption mechanism. My question is: do I have to enable any encryption support in Asterisk 1.4.13 ??? Or Asterisk has native encryption support ??? Thanks a lot Alejandro

Ooops did Google just become a carrier :) http://googleblog.blogspot.com/2007/07/all-aboard.html I hear stocks crumbling worldwide as I type. Cheers, Dean -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070703/92218fc6/attachment.htm

...oddle. http://www.microsip.org/ On 16 February 2017 at 13:04, Max Grobecker <max.grobecker at ml.grobecker.info> wrote: > Hello, > > I'm a big fan of PhonerLite. > It's more poplar in Germany, but also available in English language. > This client supports TLS, SRTP and ZRTP: http://phonerlite.de/features_en.htm > > Yes, the GUI is not that much user friendly as Zoiper is - but at least a very good and stable client for testing purposes ;-) > > Max > > > Am 15.02.2017 um 19:46 schrieb Motty Cruz: >> Hello, I have a user that prefers Soft SIP...

...rability in a common element in VoIP communications known as media gateway control protocol. "Using this weakness in MGCP, you can do anything like reroute or tear down connections," He said. "But eavesdropping is especially scary." Thermos also described an exploitable hole in ZRTP, one species of the VoIP language real-time transfer protocol: ZRTP encrypts all transmitted sounds, but not the numbers translated from tones. That means hackers can listen for credit card information communicated from touchtone phones. Though the attacks on display were new, VoIP isn't: Inte...

Hello VoIP guys Sorry for being somewhat off-topic. At the moment I am studying informatics in the seventh semester and I need to start thinking about my thesis. As I am very interested in VoIP technologies I thought about picking this as my main topic. So far I have only little experience in this area. I have been fiddling around with siproxd and pfSense and have red the one or the other packet

...? Do we need SECUREDIAL? Any ideas and thoughts on the subject are welcome! Regards, /Olle --------- Copy of earlier mail --------- (http://lists.digium.com/pipermail/asterisk-dev/2007-July/028377.html) To open a can of worms... :-) I'm involved in Phil Zimmerman's efforts to integrate Zrtp into Asterisk. At the same time we have code for SRTP that needs to be integrated. This means that we will add the concept of a "secure call" in Asterisk. At some point, I want to be able to build dialplans where I can manager security requirements on channels, like "this conf...

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Hi all, This is the first time i am using stun with asterisk for nat problems. I have read the rfc which describes how stun works. i didnt have any problems understanding it. I have also intalled the stun server called stund which i downloaded from sourceforge. I have seen on the list that most people use stund here. I have started the stun server and its running silently. Now i dont know what to