End-to-end secure connection in heterogeneous networks for critical scenarios

This contribution is focused on securing end-to-end unicast communications in heterogeneous sensor networks comprising satellite links, while maintaining effective network performance. The proposed protocol extends the LOCKSAT (LOCal Key Synchronization and generation for data security in sATellite communication) key management procedure, and is able to guarantee a frequent key renewal while overcoming limitations of both sensor and satellite segment. Effectiveness of the solution is assessed through a test bed including real and simulated satellite links.