| 摘要 |
<p>A novel authentication system that uses a “dropped call” as a new authentication factor has been described. Major elements of the authentication system are: a pool of programmable phones, an authentication server, a data store and a communication medium connecting these elements. Authenticating users enrol with the authentication server by supplying their phone number, Pu, as identity. During authentication a user is prompted by the authentication server to supply his/her enrolled phone number, Pu. After checking the existence of an entry for Pu in enrolment data store, the authentication server solicits a dropped call from the user at a specific phone number, Ps, of the server. The authentication server successfully authenticates the user only after detecting a dropped call received at Ps from the user’s enrolled phone number Pu. Additional authentication factors such as a password may also be combined with the dropped call in order to authenticate the user.</p> |
