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Data transmission method, device and system

A data transmission method and a technology of a data transmission device, which are applied in the field of biometrics, can solve problems such as weak performance of the main control chip, security risks in data transmission, inability to execute RSA, DES or MD5 algorithms, etc., and achieve the effect of low hardware cost

Inactive Publication Date: 2017-11-24
YUNDING NETWORK TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to cost and power consumption considerations, biometrics are mostly implemented using a separate module, and the performance of the main control chip is weak, unable to execute complex RSA, DES or MD5 algorithms. Therefore, most communication protocols use plain text, and data transmission has security risks.

Method used

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  • Data transmission method, device and system
  • Data transmission method, device and system
  • Data transmission method, device and system

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Embodiment Construction

[0064] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0065] Please refer to figure 1 , which shows a schematic structural diagram of an implementation environment involved in the data transmission method provided by each embodiment of the present invention. The implementation environment includes a main control chip 120 and a biometric identification module 140;

[0066] The main control chip 120 has functions such as generating instructions, sending instructions, generating random numbers, encrypting data, and verifying information. An encryption key is pre-stored in the main control chip 120 . The main control chip 120 is generally used to issue commands to the biometric module 140 . The main control chip 120 is also used to respond to or verify the reply packet fed back by the biom...

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Abstract

The invention discloses a data transmission method, device and system, belonging to the technical field of biometric identification. The method comprises the steps of generating a random character string; encrypting the random character string and a first checksum according to an encryption key so as to generate a first signature, wherein the first checksum is a checksum of command packet data; generating a command packet according to the command packet data, the random character string and the first signature; sending the command packet to a biometric identification module, wherein the biometric identification module is used for feeding back a reply packet according to the command packet; and receiving the reply packet fed back by the biometric identification module. When a master control chip cannot execute complex RSA, DES or MD5 algorithms due to poor performance, most communication protocols use plaintext, and data transmission has security risk. The invention solves the above problem. The safe communication algorithm is realized at extremely low hardware cost, bidirectional identity identification, anti-replay and anti-tamper functions are realized, only an encryption module is used and a decryption module is not used, and the data transmission risk is lowered.

Description

technical field [0001] The invention relates to the technical field of biometric identification, in particular to a data transmission method, device and system. Background technique [0002] Biometrics technology refers to the technology of identifying and verifying human body characteristics. Biometrics usually includes fingerprint recognition, iris recognition and face recognition. It is more secure, confidential and convenient than traditional identity verification methods; at the same time, it has the advantages of not easy to forget, good anti-counterfeiting performance, not easy to forge, steal, easy to "carry" and available anytime and anywhere, so it is widely used. [0003] In the field of biometrics, the data transmission method is usually as follows: the main control chip sends instructions to the biometric module; the biometric module receives the instructions issued by the main control chip, receives biological information according to the instructions, and feed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/32H04L29/06
CPCH04L9/0822H04L9/0869H04L9/3231H04L9/3247H04L63/0861H04L63/12H04L9/0662H04L9/0618H04L9/0866H04L9/3236H04L63/126H04L63/123G06F11/1004H04L9/0625H04L9/0631
Inventor 唐皓陈彬张东胜
Owner YUNDING NETWORK TECH BEIJING
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