| 摘要 |
PROBLEM TO BE SOLVED: To provide a user authentication system for ensuring that the result of information processing obtained by performing access to a transaction server and an authentication server is a result to a request of information processing from one terminal of a user who has performed the access.SOLUTION: An authentication server 6 includes: user identification ID generation means 61a for generating a user identification ID with which a session ID is associated; authentication data generation means 61c for generating data for authentication; first authentication means 61d for collating the acquired user identification ID and session ID with the stored user identification ID and session ID; password issue means 61f for issuing a password associated with a unique ID; second authentication means 61g for collating the password and unique ID acquired from a second terminal with the password issued by the password issue means and the unique ID; and user identification ID registration means 61h for registering the user identification ID when collation processing is completed. |
