"Bronco" <TRINTI_bronco.mail@gmail.com> wrote in message 
news:oau7at$nf9$1@trimpas.omnitel.net...
> On 2017-03-22 17:45, kef wrote:
>> voice / video nera? Tik zinutes?
>
> Voice yra, bet veikia ne kaip phone call, o voicemail principu. Čia 
> daiktas saugumui uždrožtas, o ne fintikliuškom :) Jei šifruotum realiu 
> laiku audio ar net video srautą, tai liktum negausiai patenkintas dėl 
> greit nustipusio akumo ar trukčiojančio vaizdo.
>
> Strength of the encryption: The asymmetric ECC based encryption used by 
> Threema has a strength of 255 bits. Accordingto a NIST estimate (page 64), 
> this corresponds at least with the strength provided by 2048 bit RSA. ECDH 
> on Curve25519 is used in conjunction with a hash function and a random 
> nonce to derive a unique 256 bit symmetric key for each message, and the 
> stream cipher XSalsa20 is then used to encrypt the message. A 128 bit 
> message authentication code (MAC) is also added to each message to detect 
> manipulations/forgeries.

Aciu. Tai kol kas nelabai tokio reikia, bet gal kada nors