As sensor networks become common and enable new applications, developing powerful paradigms for programming sensor networks becomes critical to realize their full potential as collaborative data processing engines. In this article, we propose a deductive framework for programming sensor networks, based on the observation that the sensor network can be viewed as a distributed database of facts g...

Key distribution is an important problem in wireless sensor networks where sensor nodesare randomly scattered in adversarial environments.Due to the random deployment of sensors, a list of keys must be pre-distributed to each sensor node before deployment. To establish a secure communication, two nodes must share common key from their key-rings. Otherwise, they can find a key- path in which ens...