WhisperSystems: Voice and Text Encryption for Android

http://www.whispersys.com/

by mcantelon • 16 years ago

19 5 16 years ago

shareme• 16 years ago

a question: They do not use SIP are they injecting a third party switch in order to avoid having to use Sip and thus opening themselves up to the legal back door they mention?

damaja• 16 years ago

Pretty sure that ZRTP negotiates the session over the media layer (RTP.. thus Zimmerman RTP), thus avoiding the need for a switch to any other system outside the two users to set up the call.

pieter• 16 years ago

How do you verify the identity of the other person? That is, how do they prevent man in the middle attacks?

wmf• 16 years ago

They're using SMS for call setup, which is unlikely to be MITMed. Also see http://en.wikipedia.org/wiki/ZRTP#Authentication

phunel• 16 years ago

Anyone in the HN community working on PGP encryption for the iPhone/Android? Not in the hushmail vein, but using the Thunderbird/Enigmail implementation of GnuPG as the model instead? Thoughts?

WhisperSystems: Voice and Text Encryption for Android

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