USER AUTHENTICATION METHOD BY MAIL OF BROWSER PHONE, USER AUTHENTICATION SERVER, USER AUTHENTICATION METHOD FOR AUTHENTICATION SERVER, USER AUTHENTICATION PROGRAM FOR AUTHENTICATION SERVER AND RECORDING PROGRAM RECORDING ITS PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an authentication method using mail capable of safely performing a user authentication in a simple method by use of individual identification output and mail receiving function of a general browser phone and the access function to a WWW site of a PC. SOLUTION: An optional terminal X accesses an authentication server A through a store server S to receive a session ID, and transmits the session ID and the mail address of the browser phone B (S1-S4). A stores a set of the session ID, the mail address and two generated onetime URLs, and transmits a confirmation mail including the link of the session ID and one of the onetime URLs to B (S6). B requests the transmission of a Web page designated in the onetime URL based on the matching confirmation between the session IDs of S1-S4 and S6 to A (S7). A derives the other onetime URL from the onetime URL of S7, and requests the transmission of the individual identification number (S8). A transmits the individual confirmation to S when the received individual identification number is matched to the preliminarily retained set of the mail address and individual identification number of B (S9 and 10). COPYRIGHT: (C)2004,JPO&NCIPI