| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an authentication system, an authentication method, and an authentication program capable of reliably authenticating a user without new password setting or the like even when the user changes a portable terminal used. <P>SOLUTION: An authentication system 1 includes: a communication unit 20 for communicating with a portable terminal 3; a user information DB 24a for storing therein user information stored in the portable terminal 3; an authentication key setting unit 23a for setting, as an authentication key, user information including at least one of an address, a name, and a telephone number and capable of identifying an individual among the user information or user information stored in the portable terminal 3 for purposes other than user authentication; and an authentication unit 23b for authenticating a user on the basis of whether or not the user information received by the communication unit 20 from the portable terminal 3 matches the authentication key set by the authentication key setting unit 23a in advance. <P>COPYRIGHT: (C)2013,JPO&INPIT |
