ACCESS MANAGEMENT SYSTEM, AUTHENTICATION DEVICE FOR ACCESS MANAGEMENT SYSTEM, MANAGEMENT DEVICE FOR ACCESS MANAGEMENT SYSTEM, PORTABLE TERMINAL FOR ACCESS MANAGEMENT SYSTEM, MOBILE BODY FOR ACCESS MANAGEMENT SYSTEM, DATA STRUCTURE FOR ACCESS MANAGEMENT DATA, ACCESS MANAGEMENT PROGRAM, AND CONSTRUCTION METHOD FOR ACCESS MANAGEMENT SYSTEM

摘要

An access management system that reduces possibility of unauthorized access, an authentication device, a management device, a portable terminal, and a mobile body configuring the access management system, a data structure for access management data used in the access management system, an access management program executed in the access management system, and a construction method for the access management system. A plurality of nodes connected by a P2P network share a blockchain. Authentication conditions are recorded in blocks of the blockchain by a management node, which is any one of the plurality of nodes. The authentication conditions include authentication information. The authentication conditions designate an authentication node, which is any one of the plurality of nodes, as a node that performs authentication. The passing body is authenticated by the authentication node.