Welcome to the resource topic for 2001/022
Title:
Optimistic Asynchronous Atomic Broadcast
Authors: Klaus Kursawe, Victor Shoup
Abstract:This paper presents a new protocol
for atomic broadcast in an asynchronous network with
a maximal number of Byzantine failures.
It guarantees both safety and liveness without
making any timing assumptions or using any type of failure detector.
Under normal circumstances, the protocol runs in an optimistic mode,
with extremely low message and computational complexity – essentially,
just performing a Bracha broadcast for each request.
In particular, no
potentially expensive public-key cryptographic operations are used.
In rare circumstances, the protocol may briefly
switch to a pessimistic mode,
where both the message and computational complexity
are significantly higher than in the optimistic mode,
but are
still reasonable.
ePrint: https://eprint.iacr.org/2001/022
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