公开(公告)号：US20190325673A1

公开(公告)日：2019-10-24

申请号：US16458044

申请日：2019-06-29

申请人： AVI ROITMAN BARDACK ,  GREGORY ALLEN LLOYD ,  HSIN-CHENG CHIU ,  Steven Mark Bryant ,  Charles Wheeler

发明人： AVI ROITMAN BARDACK ,  GREGORY ALLEN LLOYD ,  HSIN-CHENG CHIU ,  Steven Mark Bryant ,  Charles Wheeler

IPC分类号： G07C9/00 ,  G06F16/908 ,  G06F16/23

摘要： A physical access control system enables acceptable portal entry codes upon receiving each physical access request by operating on the elapsed time from a previous physical access request to generate a temporal credential. The controller receives a plurality of physical access requests from a plurality of mobile application devices. Upon authenticating the first access request, the controller eliminates repetition from the space of acceptable successor requests from each mobile application device. Monotonic nonces advance the range of temporal code matches. Entry code generation is decentralized to distributed application devices and is inherently unknowable until a successor access request is initiated by the same application device.