| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide secret information such as medical information for a third person who cannot be set as an information-provided person in advance while maintaining information security.SOLUTION: There is provided an information system including a first information terminal 100, a first server 200, a first database 300 which stores medical information (information B) on the owner of the first information terminal, and a second information terminal 400 other than the first information terminal. The first information terminal accesses the first database and provides information A needed to acquire the information B for the first server, which transmits the information A to the second information terminal that the first server specifies. The first database includes an access authentication part which determines an access request, a download authentication part for the information B, and a device which provides the information B, and the second information terminal accesses the first database by using the information A so as to acquire the information B.</p> |
