ACCESS AUTHENTICATION METHOD, APPARATUS, AND SYSTEM

摘要

The present invention relates to the field of communications technologies, and provides an access authentication method, apparatus, and system, solving the problem that an existing authentication manner reduces network security. The method comprises: an ASR maintaining a mapping record table recording a mapping between a terminal AID and Session information; after a terminal accesses the ASR and completes access authentication, querying the mapping record table according to the Session information of the terminal to determine whether the terminal AID is the same as an AID corresponding to the terminal Session information and recorded in the mapping record table; and when the terminal AID is different from the AID corresponding to the terminal Session information and recorded in the mapping record table, determining that access authentication of the terminal fails.