Commands integrity and authority in control radio link of UAV

In this paper, authors propose to use fast public key cryptographic transformations based on elliptic curves over binary field to provide the integrity, privacy and authority of commands in command radio links for control of unmanned aerial vehicles. High performance has provided by the modified Itoh-Tsujii multiplicative inversion algorithm for binary fields recommended by State Service of Special Communication and Information Protection of Ukraine and in DSTU 4145-2002. Proposed modifications allow significantly improve performance of operations with digital signature (DSTU 4145-2002) and shared secret generation (DSTU ISO/IEC 15946-3) on modern CPUs, which support special CLMUL instruction set.