Communication method and system applied to mobile equipment

Abstract

The invention discloses a communication method and system applied to mobile equipment. The method comprises the following steps: acquiring original acceleration data Sa and Sb and corresponding timestamps Ta and Tb of mobile equipment A and mobile equipment B; according to the original acceleration data Sa and Sb and the corresponding timestamps Ta and Tb, respectively obtaining original features of the mobile device A and the mobile device B; acquiring common features according to the original features, and generating a common secret; and the mobile device A and the mobile device B perform communication after generating and confirming a session key according to common secret negotiation. According to the method, identity authentication and secure communication of the mobile equipment in a wireless network can be realized without any priori knowledge or synchronization of an internal clock of the equipment; original acceleration data are processed by introducing moving average filtering and high-pass filtering, small fluctuation caused by relative motion between mobile devices is removed, and a highly-correlated common secret is obtained; and the Pearson's correlation coefficient is introduced for identity authentication, so that the success rate of identity authentication is improved.

Description

technical field [0001] The present invention belongs to the technical field of mobile devices, and in particular relates to a communication method and system applied to mobile devices. Background technique [0002] At present, mobile devices such as smartphones and tablet computers have been deeply integrated into people's work and life, and with the popularity of mobile devices, interactions between mobile devices have become more and more frequent. In the common mobile device interaction, using a wireless network for communication has low cost and does not require additional hardware, which is a relatively economical and practical way. However, the wireless nature of wireless networks can cause some security issues, such as man-in-the-middle attacks. First, because the connection is wireless, the mobile device cannot identify the identity of the target device connected to it, and cannot guarantee that the communication data is sent to the correct receiver; second, the wir...

AI Technical Summary

Problems solved by technology

However, due to the wide variety of mobile devices, differences in size and shape will inevitably lead to relative motion of the device; (3) Due to the high sensitivity of the accelerometer, slight movements of the mobile device will cause drastic changes in the acceleration data

Therefore, in this case, due to the relative motion between the two mobile devices, the acceleration data may be very different, and it is difficult to negotiate enough common characteristics to generate a session key

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