A Lightweight Secure and Distributed Reprogramming Protocol for Wireless Sensor Networks – A Review

Wireless reprogramming in a wireless sensor network (WSNs) is the process of propagating new code image or relevant commands to sensor nodes. While all existing insecure/secure reprogramming protocols are based on the centralized approach, it is important to support distributed reprogramming in which multiple authorized network users can simultaneously and directly reprogram sensor nodes without involving the base station. Very recently, a novel secure and distributed reprogramming protocol named SDRP has been proposed, which is the first work of its kind. The identity-based signature scheme has been chosen, which requires less computation cost and is significantly more efficient than all known IBS schemes, and the size of signatures is approximate 160 bits which is the shortest ID-based signatures so far. Compared to Deluge, Rateless Deluge has many advantages such as reducing latency at moderate levels of packet loss, being more scalable to dense networks, and generally consuming far less energy, a premium resource in WSNs.Thus, in order to further improve the reprogramming efficiency of SDRP, integrate SDRP with a more efficient reprogramming protocol like Rateless Deluge, leading to more secure and efficient distributed reprogramming.