Communication method for bluetooth device, mobile device, electronic signature device and server

Abstract

The invention provides a communication method among Bluetooth devices, a mobile device, an electronic signature device with a Bluetooth function and a server. The communication method of the mobile device includes the steps that the mobile device sends an authentication request carrying the account information of a user to the background; after the response of passing authentication fed back by the background is received, parameter information of the electronic signature device which is fed back by the background and related to the account information is received, and the parameter information at least comprises the identity recognition information of the electronic signature device; a transmission secret key is obtained according to the parameter information; pairing, access authentication and communication with the electronic signature device are finished though the identity recognition information of the electronic signature device and the transmission secret key. By means of the method, wireless connection can be built among Bluetooth devices rapidly and safely, and the safety of the transmission secret key is improved.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a communication method of a bluetooth device, a mobile device, an electronic signature device and a server. Background technique [0002] There are three security modes for wireless communication, the highest level is the link-level security mode. In the link-level security mode, two Bluetooth devices perform access authentication first, and during the access authentication process, the two Bluetooth devices negotiate a transmission key and store the transmission key in their respective non-volatile memories. In this way, future communication does not need to create a transmission key. After the two Bluetooth devices obtain the transmission key, the two Bluetooth devices can use the same transmission key at the application level of the link to perform encrypted data transmission. [0003] In the prior art, during the access authentication process, two Bluetooth devices ...

AI Technical Summary

Problems solved by technology

Since some parameter information needs to be transmitted on the link, it may be hijacked, and it is difficult to guarantee the security of the generated transmission key

[0004] Moreover, in the prior art, when two Bluetooth devices establish a connection, the user needs to confirm and select a certain slave device in the list of slave devices to be connected prompted by the master device, and then the slave device can complete the access authentication with the master device. Finally, the connection is established. This wireless access method requires user participation and selection, and the efficiency is low.

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