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Fingerprint information hiding and verifying method based on two-dimensional bar code

A technology of fingerprint information and authentication method, applied in the fields of information hiding and information security, can solve the problems of low security and high cost, and achieve the effect of high security, low cost and large amount of stored information

Inactive Publication Date: 2006-03-01
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the shortcomings of low security and high cost of existing authentication methods, the purpose of the present invention is to provide a fingerprint information hiding and authentication method based on a two-dimensional barcode, which improves the security of information hiding and authentication methods, and increases Increased storage information capacity, while reducing costs

Method used

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  • Fingerprint information hiding and verifying method based on two-dimensional bar code
  • Fingerprint information hiding and verifying method based on two-dimensional bar code
  • Fingerprint information hiding and verifying method based on two-dimensional bar code

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Embodiment Construction

[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] The fingerprint information hiding and authentication method based on the two-dimensional barcode of the present invention includes two parts of fingerprint information hiding, fingerprint information identification and authentication, such as figure 1 As shown, the method proceeds in the following steps:

[0053] The first step is to collect the fingerprint image first, image 3 is the captured fingerprint image.

[0054] The second step is to hide the fingerprint information, specifically follow the steps below:

[0055] (1) Fingerprint Feature Extraction

[0056] Process the collected fingerprint images to extract fingerprint features, such as figure 2 As shown, the specific steps are as follows:

[0057] a. Input the fingerprint image for segmentation

[0058] Firstly, the collected fingerprint image is filtered by a...

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PUM

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Abstract

The invented method includes the following steps: firstly, collecting fingerprint image, making characteristics extraction, encryption processing, printing it on the two-dimensional bar code, concealing the fingerprint information into two-dimensional bar code; collecting two-dimensional bar code image, making image segmentation, filtering, geometric correction and layered pretreatment, identifying and decoding said bar code image to obtain the loaded encrypted information, deciphering said encrypted information to obtain fingerprint characteristic information loaded in two-dimensional bar code, comparing said information with field fingerprint information, making detection so as to implement anti-false authentication of fingerprint.

Description

technical field [0001] The invention belongs to the technical fields of information security and information hiding, and relates to a fingerprint information hiding and automatic identification authentication method, in particular to a fingerprint information hiding and authentication method based on a two-dimensional barcode. Background technique [0002] Information security and information hiding are currently hot issues that people are concerned about. People need to hide some key information and take it out conveniently when needed. There are three main anti-counterfeiting authentication methods at present, one is based on known authentication methods, such as passwords and passwords; the other is based on all authentication methods, such as various certificates, cards, etc.; Such as fingerprints, palm prints, irises, etc. The password / password authentication method is vulnerable to attack and has low security; the certificate authentication method is low in production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K17/00G06K9/00
Inventor 赵季中田丽华智勇郑南宁
Owner XI AN JIAOTONG UNIV
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