[messaging] Vuvuzela: Scalable Private Messaging Resistant to Traffic Analysis

carlo walentiny cajw1 at web.de
Sat Jun 20 07:25:05 PDT 2015

I recently came across an interesting paper:

"This paper presents Vuvuzela, a system that provides
scalable private point-to-point text messaging.
Vuvuzela ensures that no adversary will learn
which pairs of users are communicating,
as long as just one out of N servers is not compromised,
even for users who continue to use Vuvuzela for years.
Vuvuzela’s design assumes an adversary that controls all but
one of the Vuvuzela servers (users need not know which one),
controls an arbitrary number of clients, and can monitor, block,
delay, or inject traffic on any network link. Two users, Alice
and Bob, communicating through Vuvuzela should have their
communication protected if their two clients, and any one
server, are uncompromised."

I don't see how this wouldn't be of interest here...

Anyone qualified to evaluate their claims care
to comment?


Link to the paper:



Jelle van den Hooff,
David Lazar,
Matei Zaharia,
Nickolai Zeldovich
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