An Associated Behavior Sequence Based User Authentication Approach in M2M Mobile Terminals

With the rapid development of machine-to-machine (M2M) mobile smart terminals, M2M services can be used in a wide range of industries, including such as telemedicine, remote meter reading and public security. Since different industries and enterprise users have different requirements for M2M specific applications, the security identity authentication of M2M mobile terminals is particularly worthy of attention. Existing methods can effectively solve the unsustainable problem of one-time verification, however they cannot address the dynamic relevance characteristics of user behavior sufficiently. Thus, the accuracy of user identity authentication needs to be further improved. In this paper, we propose a terminal identity authentication technology based on user association behavior analysis. In order to identify the abnormal login during each behavior process of authenticated user, we take largest coincident part of the user behavior sequence and short coincide into consideration. In addition, we propose a Similarity-based Behavior Sequence Similarity Algorithm (BCS-SSA) based on the traditional sequence pattern of Behavior Common Subsequence. The experimental results demonstrate that the proposed method can effectively improve the accuracy of user's behavioral sequence, and prove the uniqueness of different sequences on the other hand.