AUTHENTICATION SYSTEM AND METHOD USING EXECUTION AUTHORIZATION TICKETS, AUTHENTICATION PROGRAM, AND RECODING MEDIUM RECODING THE PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an authentication system, which uses execution authorization tickets by which a user can use one of multiple terminals owned by him/her to make a specific third party access files and resources in another terminal. SOLUTION: The invention is characterized in that a terminal B1 sends secret data S2 processed from secret information S1 to a terminal A1, and the terminal A1 sends an access ticket, which includes secret data S2 and makes a terminal A2 execute a prescribed instruction, to the terminal B1, and the terminal B1 sends the access ticket to the terminal A2, and the terminal A2 conducts authentication with the secret information S1 prossessed by the terminal B1 and the secret data S2 written in the access ticket, and the terminal A2 executes the instruction stated in the access ticket if authentication in successful.