DATA COMMUNICATION METHOD AND SYSTEM

摘要

Biological information on a user is digitalized into biometric data which is transmitted from a terminal to a server. In the server, the user is authenticated by using the biometric data. The server transmits registered data on its user and similarity information on the communication partner to the terminal. The terminal generates a secret key to be shared by the communication partner from the user similarity information calculated from the registered data and the similarity information on the communication partner. By using the secret key, an encrypted communication is performed.