Password management system, password management method, and password management system

摘要

PPROBLEM TO BE SOLVED: To provide a password management device, a password management method, and a password management system capable of preventing the deterioration of security while reducing the labor of a manager. PSOLUTION: A password management device 1 includes: a password generation part 142 for generating a plurality of passwords which are valid in a first time, and whose term of validity is different for a first period; a password storage control part 143 for making a password DB 131 store user ID and the plurality of passwords for the first period in association; a valid password selection part 144 for selecting the valid password on the basis of the term of validity in every first time from among the plurality of passwords stored in the password DB 131; and a valid password transmission part 145 for transmitting the selected valid password and the user ID corresponding to the valid password to a server 2. PCOPYRIGHT: (C)2013,JPO&INPIT