Mobile proactive secret sharing
David A. Schultz, Barbara H. Liskov, Moses D. Liskov · 2008
MPSS is a new way to do proactive secret sharing in asynchronous networks. MPSS provides mobility: The group of nodes holding the shares of the secret can change at each resharing, which is essential in a long-lived system. MPSS additionally allows the number of tolerated faulty shareholders to change when the secret is moved so that the system can tolerate more (or fewer) corruptions; this allows reconfiguration on the fly to accommodate changes in the environment.