2002 年 56 巻 7 号 p. 1089-1095
Strengthened security for cable-TV networks is an indispensable prerequisite to the delivery of e-commerce and electronic administration services via this medium. This report proposes a high-level security system that effectively prevents intrusions by tapping imposture. In this system, encryption is applied on the MAC layer so that the Media Access Control Address is encrypted, the system thus makes it very difficult to collect information on a specific member by tapping.