Abstract
WirelessHART is a secure Time Division Multiple Access (TDMA) based wireless mesh networking technology operating in the 2.4 GHz Industrial, Scientific and Medical (ISM) radio band. The specifications in the WirelessHART have been organized well, but security standards are loosely defined. This project will focus on the security aspects, that is the keying and design of a security system for the Data-link layer of the WirelessHART network using the AES algorithm. The data in the WirelessHART network is encrypted using the AES algorithm and transmitted in the mesh network. The report on our design of this security system will include the understanding of the types of security provided in WirelessHART network, threats in the network, cryptography, programming in Verilog and use of matrices.