The method of using with the memory unit and that device which have the circuit in order to improve the precision of the time presumption which is used for the certification of entity

摘要

A memory device with circuitry for improving accuracy of a time estimate used to authenticate an entity and a method for use therewith are disclosed. In one embodiment, a memory device receives a request to authenticate an entity. Before attempting to authenticate the entity, the memory device determines if a new time stamp is needed. If a new time stamp is needed, the memory device receives the new time stamp and then attempts to authenticate the entity using a time estimate based on the new time stamp. In another embodiment, the memory device comprises a plurality of different time stamp update policies (TUPs) that specify when a new time stamp is needed, and the determination of whether a new time stamp is needed is based on a TUP associated with the entity. Other embodiments are disclosed, and each of the embodiments can be used alone or together in combination.