A number of keystream generators have been proposed which are based on Fibonacci sequences, and at least one has been elded. They are attractive in that they can use some of the security results from the theory of shift register based keystream generators, while running much more quickly in software. However, new designs bring new risks, and we show how a system proposed at last year's workshop...

Since 1983 the US Central Intelligence Agency has defined terrorism as “premeditated, politically motivated violence perpetrated against noncombatant targets by subnational groups or clandestine agents, usually intended to influence an audience.” Compared to the many dangers facing the US today, the threat of terrorism is relatively small. Nonetheless, at nearly all levels of US society the res...