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Fingerprint identification device

A fingerprint recognition and fingerprint image technology, applied in character and pattern recognition, instruments, digital data authentication, etc., can solve the problems of being leaked, user fingerprint information is stolen, etc., to improve security, reduce key cracking, increase effect of difficulty

Active Publication Date: 2016-07-27
BEIJING HUADA ZHIBAO ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of this, there is a great need for an improved fingerprint identification device to solve the technical problem that user fingerprint information is stolen or leaked in the prior art, reduce the risk of fingerprint information being stolen, and improve the security of user fingerprint information

Method used

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Embodiment Construction

[0022] An embodiment of the present invention provides a fingerprint identification device, which can improve the security of user fingerprint data and reduce the risk of fingerprint data being stolen or leaked.

[0023] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0024] refer to figure 1 , a schematic structural diagram of Embodiment 1 of a fingerprint identification device in an ...

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Abstract

The embodiment of the invention discloses a fingerprint identification device applied in the technical field of fingerprint identification. According to the device, the risk that the fingerprint information is cracked or read can be reduced, and the security of the fingerprint information of a user can be improved. According to the embodiment of the invention, the device comprises a fingerprint sensor, a smart card and a microcontroller. The fingerprint template of the user is pre-stored in the smart card. The fingerprint template is encrypted by a first secret key generated when the smart card is used for the first time. The fingerprint sensor is used for collecting the fingerprint image of the user and transmitting the fingerprint image to the smart card. The smart card is used for receiving the fingerprint image collected by the fingerprint sensor, encrypting the fingerprint image and sending to the microcontroller. Different secret keys are used each time when the smart card and the microcontroller transmit data. The microcontroller is used for decrypting the encrypted fingerprint image sent by the smart card and extracting the pattern features of the fingerprint image. Finally, the smart card compares the extracted image features with the fingerprint template, thus identifying a fingerprint.

Description

technical field [0001] The invention relates to the technical field of fingerprint identification, in particular to a fingerprint identification device. Background technique [0002] Fingerprints are unique patterns on the skin of the fingers, made up of raised lines on the skin. The starting point, ending point, bifurcation, and combination of these raised lines are called detail feature points. There are countless permutations of such detailed features of ridge lines. Therefore, each person's fingerprint or even each ridge line of a fingerprint is unique and irreplaceable. Therefore, identification through fingerprints has high security. It has also been gradually applied in fields such as finance, public security, access control, and household registration management. [0003] Since fingerprint identification is mostly used in security applications, it is very important to ensure the security of fingerprint information. However, in the prior art, in the process of usin...

Claims

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Application Information

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IPC IPC(8): G06F21/32G06K9/00
Inventor 华燕翔李良邢洪涛李哲
Owner BEIJING HUADA ZHIBAO ELECTRONICS SYST
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