A spread-spectrum communication system protecting information data from interception
Shinya Matsufuji, Kyoki Imamura · IEEE Transactions on Information Theory · 2000
This correspondence tries to construct a direct-sequence spread-spectrum multiple-access communication system, so that the difficulty of wiretapping from insiders' and outsiders' attacks increases and the worst case error probability decreases, as much as possible. Bent sequences with optimal periodic correlation properties are assigned to users, as spreading sequences corresponding to secret keys.