AUTHENTICATION METHOD AND DEVICE OF MOBILE TERMINAL

摘要

Disclosed are an authentication method and device of a mobile terminal. The device comprises a key distribution center (KDC) (4) and an encryption module (1). A communication protocol between the encryption module (1) and the KDC (4) is pre-stored in the encryption module (1). The method comprises: the encryption module (1) using the communication protocol to send a first authentication request to the KDC (4) (102) and send a second authentication request after determining that the first authentication request is successful (104); and the KDC (4) generating a final bidirectional authentication result after the second authentication is completed, and informing the encryption module (1) of the result. The present invention can effectively improve the security of user identity authentication, greatly reduce the dependence on inherent identity authentication of a mobile terminal, improve the security of mobile terminal use and better meet digital mobile communication security requirements.