  An ad hoc network is a self-organizing network with help of Access Point (AP)
of wireless links connecting nodes to another. The nodes can communicate
without infrastructure network. They form an random topology (BSS/ESS), where
the nodes play the role of routers and are free to move arbitrarily. Ad hoc
networks confirmed their efficiency being used in different fields but they are
highly vulnerable to security attacks and dealing with this is one of the main
challenges of these networks today. In recent times, a few solutions are
proposed to provide authentication, confidentiality, availability, secure
routing and intrusion prevention in ad hoc networks. Employ security in such
dynamically changing networks is a hard task. Ad hoc network uniqueness must be
taken into contemplation to be clever to design efficient clarification. Here
we spotlight on improving the flow transmission confidentiality in ad hoc
networks based on unipath routing. Definitely, we take advantage of the being
of multiple paths between nodes in an ad hoc network to increase the
confidentiality robustness of transmitted data with the help of Access Point.
In our approach the original message to secure is split into shares through
access point that are encrypted and combined then transmitted along different
disjointed existing paths between sender and receiver. Still if an attacker
succeeds to attain one or more transmitted contribute to the probability that
the unique message will be reconstituted is very low.
