Abstract
Security in wireless sensor networks is difficult to achieve because of the resource limitations of the sensor nodes. We propose a trust-based decision framework for wireless sensor networks coupled with a non-deterministic routing protocol. Both provide a mechanism to effectively detect and confine common attacks, and, unlike previous approaches, allow bad reputation feedback to the network. This approach has been extensively simulated, obtaining good results, even for unrealistically complex attack scenarios.
Highlights
In essence, an intelligent environment is a distributed system that collects data from a wireless sensor network, processes this data, and enriches the environment with new meaning
We focus on the development of secure applications in future wireless sensor networks, where many sensors provide data about observable magnitudes from the environment, and many actuators let the system act on the state of the environment
Wireless Sensor Networks are based on many wireless, low-cost, low-power, and low-resources nodes
Summary
An intelligent environment is a distributed system that collects data from a wireless sensor network, processes this data, and enriches the environment with new meaning. Even in OpenSSL, that is considered to be quite reliable and secure, and it is used in many servers around the world, it is possible to find asymmetries that reveal some data of the cryptographic keys. These asymmetries can be used to implement a real attack. In this article we propose a more secure approach to the design of applications built on a wireless sensor network by exploiting these two properties.
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