Hopfield-Association: Establishing a Shared Key in the Wireless Sensor Networks

Wireless sensor networks (WSNs) are often deployed in hostile environments, thus being subjected to great security risks. Establishing secure communication between two sensors nodes is of typical defense against eavesdropping, therefore in-volveing the key agreement. In this paper, we present a key agreement scheme without the trusted third parties (TTP) by exploiting the special characteristics of Hop field neural network: the two nodes converge in a steady state from their respective initial states after iterating finite times, while maintaining the confidentiality of the key by quantifying the key to i-bit strings. Compared to existing solution, the proposed method requires less memory and has lower communication overhead to key agreement.