Secure wireless data link for low-cost telemetry and telecommand applications

This paper introduces a secure wireless data link for telemetry and telecommand applications characterized by a low implementation cost, and consequently, a low computational complexity and capacity. These constraints determine a specific environment where the usual security services must be performed. However, well-known cryptographic algorithms and protocols can not be directly applied. Furthermore, since those applications are associated to specific low-cost hardware devices, the proposed protocol have been designed to be performed on 8-bit microcontrollers