Threema. / don't trust closed source software

[Filip M. Nowak]

Hello,

On 10.11.2013 12:02, Mark Schneider wrote:
> (...)
> It is commercial iOS and Androif application without source code and
> evenn such important details like the used encryption.
> (...)

Actually such information are available here:
https://threema.ch/en/faq.html.

They are stating that they are using NaCl (http://nacl.cr.yp.to/) for
ECC and NSFileProtectionComplete (iOS) or/and self-implemented AES256
(Android) for stored messages encryption.

	Cheers,
	Filip