This seems relevant, building on Phil Zimmerman's Zfone/ZRTP & PGP. Open Standards?
Claim total security for phone, text, email, and more Absolutely NO Backdoors??? http://www.theregister.co.uk/2012/06/14/pgp_seal_encrypted_communications/ ----- Original message ----- From: Jacob Appelbaum <ja...@appelbaum.net> To: Naiz Mudin <naizmu...@gmail.com> Cc: "liberationtech@lists.stanford.edu" <liberationtech@lists.stanford.edu> Subject: Re: [liberationtech] AES-encyrpted telephony in Iran? Date: Tue, 12 Jun 2012 22:07:00 -0700 On 06/12/2012 09:29 PM, Naiz Mudin wrote: > Ladies & Gentlemen, > > I have discovered, by serendipity, an iOS application that is evidently > also available for Windows Phone and Symbian (soon to be replaced with > Windows Phone 8). It is called, "SafeSession" and claims 256-bit AES > encryption between known and trusted users. I'd suggest PrivateGSM. The people who created it are on this list, it's based on open standards, it isn't insanely expensive (it's free, even), and in theory, it has modes of obfuscate to evade traffic analysis of sorts. It also has support for Android, iPhone, and a ton of other platforms. All the best, Jacob _______________________________________________ liberationtech mailing list liberationtech@lists.stanford.edu Should you need to change your subscription options, please go to: https://mailman.stanford.edu/mailman/listinfo/liberationtech If you would like to receive a daily digest, click "yes" (once you click above) next to "would you like to receive list mail batched in a daily digest?" You will need the user name and password you receive from the list moderator in monthly reminders. You may ask for a reminder here: https://mailman.stanford.edu/mailman/listinfo/liberationtech Should you need immediate assistance, please contact the list moderator. Please don't forget to follow us on http://twitter.com/#!/Liberationtech _______________________________________________ liberationtech mailing list liberationtech@lists.stanford.edu Should you need to change your subscription options, please go to: https://mailman.stanford.edu/mailman/listinfo/liberationtech If you would like to receive a daily digest, click "yes" (once you click above) next to "would you like to receive list mail batched in a daily digest?" You will need the user name and password you receive from the list moderator in monthly reminders. You may ask for a reminder here: https://mailman.stanford.edu/mailman/listinfo/liberationtech Should you need immediate assistance, please contact the list moderator. Please don't forget to follow us on http://twitter.com/#!/Liberationtech