| 摘要 |
PURPOSE: An authentication method using two communication terminals is provided to protect the personal information of a communication terminal user from hacking by preventing direct input of personal information through the keyboard of a communication terminal. CONSTITUTION: A first communication terminal(100) transmits a registration ID to an access server(300)(S302). The access server creates a temporary ID for the registration ID(S303). The access server transmits the temporary ID for the registration ID to the first communication terminal(S304). The access server searches for the registration ID corresponding to the temporary ID(S308). The access server inspects matching between a registration password of the searched registration ID and a transmitted registration password(S309) The access server permits log-in of the registration ID to the first communication terminal(S310).
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