Digital certificate safety lock device and digital certificate authentication system and method

Abstract

The invention relates to a digital certificate safety lock device and a digital certificate authentication system and method. The digital certificate safety lock device comprises a universal encryption and digital signature microcontroller, an audio plug and a first modulation and demodulation module, wherein the universal encryption and digital signature microcontroller is provided with an encryption and digital signature module and a storage for storing a digital certificate, a key of the digital certificate and encryption and decryption algorithms; and the first modulation and demodulation module is used for modulating data information from the encryption and digital signature module for transmitting through an MIC (Microphone) pole of the audio plug, demodulating a signal received from a first sound channel pole of the audio plug and transmitting the demodulated signal to the encryption and digital signature module. The digital certificate safety lock device is provided with a universal audio interface plug which has high university and adaptability and can support communication terminals such as mobile phones, tablet computers, PDAs (Personal Digital Assistants) or PCs (Personal Computers) and the like, with audio interfaces. Due to the functions of independent hardware signature, digital certificate encryption and the like, the security of application logon and transactions of Internet banks or enterprises can be ensured to the maximum extent.

Description

technical field [0001] The invention relates to safe access authentication, more specifically, to a digital certificate safety lock device with an audio interface, a digital certificate authentication system and method. Background technique [0002] At present, communication terminal products such as mobile phones, tablet computers, and PDAs lack a universal USB interface, so U-KEY or U-Shield, which is commonly used on personal computers (PCs), uses digital certificates and signature algorithm technologies independent of USB interface hardware, and cannot Used on such communication terminals. [0003] The popular online banking software installed on some communication terminals does not have a hardware-independent security key, which reduces its transaction security and functions. With the enhanced functions of communication terminals, they are already facing security risks such as hacking and loss of file certificates similar to PCs. Independent and general-purpose hardwa...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that many communication terminals in the prior art do not have a USB interface, and the USB interface is not universal, and the existing USB KEY cannot be used for digital certificate verification. A digital certificate security lock device, which can communicate with a communication terminal through a universal audio interface

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