Intelligent key device based on wired earphone interface

Abstract

The invention discloses an intelligent audio key device connected to a wired earphone interface of a mobile terminal and also discloses a method for utilizing the device to realize the data communication between the device and the mobile terminal. The device comprises an earphone interface module, a data modulation-demodulation module and a safety processing module. The device is connected to a mobile terminal device through wired earphones, thereby realizing the security functions such as digital certificate management, identity authentication, data encryption and decryption, electronic signature, and the like. The device can be widely applied to the mobile terminals, such as a mobile phone with the wired earphone interface, a flat computer, and the like.

Description

technical field [0001] The invention belongs to the field of data communication and information security, and provides a security guarantee for mobile terminals including mobile terminals, tablet computers, etc., and other computer equipment, and can be used for but not limited to mobile banking, mobile payment, online banking, E-commerce, e-government and other application fields. Background technique [0002] With the progress of society and the development of technology, e-commerce, electronic payment, electronic bank, etc. have been widely accepted by people, and have increasingly become an indispensable and important part of people's daily life. From 2005 to 2010, electronic payment showed a trend of crazy growth, and the transaction volume doubled year after year: the market size of China's electronic payment was 274.3 billion yuan in 2008, 576.6 billion yuan in 2009, and 1,085.8 billion yuan in 2010, a chain increase of 96%. . According to iResearch, by 2012, the tr...

AI Technical Summary

Problems solved by technology

[0005] With the development of the mobile Internet, people have become accustomed to completing e-commerce, e-government and electronic payment applications that were previously completed on microcomputers on mobile terminals including mobile phones, mobile terminals, and tablet computers. At the same time, on mobile terminals, "Evil people" and "tumors" are rapidly spreading at a speed exceeding the outbreak on microcomputers, but because of portability requirements on mobile terminals, most of them do not provide standard USB interfaces, so mature USBKEY devices cannot be used, thus Failure to guarantee user safety

Therefore, most of the functions of mobile banking are limited to inquiries or transactions between accounts with the same name, which greatly hinders the development of mobile Internet.

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