| 摘要 |
Embodiments of the present invention provide a user authentication method and device and a terminal. The method comprises: determining class 1 authentication information and class 2 authentication information of a terminal, wherein the class 1 authentication information comprises specific attribute information, among specific attribute information of an interaction object corresponding to a specific interaction behavior of the terminal, having an occurrence frequency within a predetermined range in predetermined time, and the class 2 authentication information is used for interfering a user of the terminal in selecting the class 1 authentication information; presenting an authentication challenge set to the user of the terminal; receiving a recognition result of the user of the terminal on the authentication challenge set; and determining an authentication result according to a correct recognition rate of the class 1 authentication information in the recognition result. By means of the user authentication method and device and the terminal in the embodiments of the present invention, authentication information is dynamically generated by using information of an interaction object having a predetermined occurrence frequency in predetermined time in the terminal to authenticate a user, so that a certain anti-peeping capability is provided while reducing the memory cost of the user on authentication information. |
