Importance

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Abstract

The integrity of a group of secure processing elements in a communication system is ensured with a validation scheme. Member elements are checked by adjacent members to determine whether a member has been tampered with or operatively removed from a group. If a member is found to be untrustworthy, propagation of group characteristic information to that member will be halted. The group characteristic information defines the group, and is required by each group member in order to function. The untrustworthy member is therefore effectively exiled from the group. An efficient network topology minimizes inter-member message traffic while maintaining group robustness.

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First Claim