37th Annual Hawaii International Conference on System Sciences, 2004. Proceedings of the (2004)
Big Island, Hawaii
Jan. 5, 2004 to Jan. 8, 2004
Samuel T. Redwine, Jr. , James Madison University
In 2003, Morales and coauthors published the broadcast/multicast-oriented Exclusion Basis System (EBS) that imposes low server and communication loads to securely broadcast new keys to the other participants after an individual participant leaves. This paper provides a method for dealing with multiple participants leaving simultaneously. In doing so it develops a general approach to encrypting messages to restrict them to a subset of participants defined by the keys they know as described by a logical expression. Difficulties presented by and countermeasures to collusion by EBS participants are discussed.
S. T. Redwine, Jr., "A Logic for the Exclusion Basis System," 37th Annual Hawaii International Conference on System Sciences, 2004. Proceedings of the(HICSS), Big Island, Hawaii, 2004, pp. 90280a.