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

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...

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

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