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Re: [Linphone-developers] Testing AES3 with EC and B256 on Android

From: jehan monnier
Subject: Re: [Linphone-developers] Testing AES3 with EC and B256 on Android
Date: Mon, 11 May 2015 17:06:14 +0200


With recent version of Linphone, linphonerc configuration parameter :


triggers any  incoming/outgoing rtp packets to be silently discarded until key negotiation has succeed.

Best regards

Le 11 mai 2015 à 16:54, Peter Villeneuve <address@hidden> a écrit :

Thanks Johan,

I'll take a closer look at the code you mentioned.

Like Eli, I'm also very interested in what you described. I'd rather have linphone not establish any communication at all if the channel isn't secure, rather than have it start to send and receive unsecured RTP while waiting for the ZRTP negotiation to conclude.



On Mon, May 11, 2015 at 2:03 PM, Eli Burke <address@hidden> wrote:

I am very interested in knowing more about this option. We have occasional reports of “loud bursts of static” during ZRTP negotiation, and I’d like to experiment with it.


> Date: Sun, 10 May 2015 22:39:19 +0200
> From: Johan Pascal <address@hidden>
> To: address@hidden
> Subject: Re: [Linphone-developers] Testing AES3 with EC and B256 on
>       Android
> There is a way to force usage of encryption and prevent linphone from
> sending (and may be play received, I have to check) packets until the
> channel is secured. This means that you won't ear any sound until the
> end of ZRTP negotiation. It won't give you any hints on the fact that
> the SAS has been previously verified but will allow you to know that the
> communication is encrypted.

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