  Wireless Sensor networks (WSN) today suffer from a lack of security adapted
to their multiple constraints, to which authentication and trust management
solutions such as PGP only partially responds. On the one hand, the constraints
of autonomy and co-operation of the nodes necessary to guarantee the coherence
of the network do not require a distributed solution. On the other hand, the
constraints of energy consumption and the low computing power of the nodes
require the use of algorithms of low complexity (Zhang2014) . To our knowledge,
no solution can answer both these problems at the same time. We are proposing a
new solution for securing WSNs named BATMAN (Blockchain Authentication and
Trust Module in Ad-hoc Networks) to reply to these challenges. We present a
model of centralized management for authentication and trust, implementable on
the Tezos blockchain, and evaluate through simulation the confidence estimators
proposed here.
