Encryption Model for Sensor Data in Wireless Sensor Networks

Wireless sensor networks have become very prevalent in many industries due to its ease of implementation, high performance, and applicability in numerous areas. The widespread use of this technology brings with it the challenge of providing confidentiality to the data that wireless sensor network carries. The challenge is due to the limitation of resources of energy, memory, and computational power. This paper describes a model for encrypting the sensor data after it is collected by the sink from the sensor. This paper discusses the evolution of the model for encrypting this data from a very simplified scheme with a single key to a more sophisticated scheme which performs dual encryption over the data. The models may implement any symmetric cryptographic scheme with the encryption implemented at the sink and the decryption implemented at the base station.