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Fingerprint identification method and device, password key and storage medium

A fingerprint recognition, fingerprint technology, applied in the field of fingerprint recognition, smart key and data security, can solve the problem of insufficient fingerprint security

Active Publication Date: 2021-09-10
罗克佳华(重庆)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiments of the present application is to provide a fingerprint identification method, device, cryptographic key and storage medium, which are used to improve the problem of insufficient security in the process of identifying fingerprints

Method used

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  • Fingerprint identification method and device, password key and storage medium
  • Fingerprint identification method and device, password key and storage medium
  • Fingerprint identification method and device, password key and storage medium

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0026] Before introducing the fingerprint identification method provided by the embodiment of this application, some concepts involved in the embodiment of this application are first introduced:

[0027] Symmetric-key algorithm (Symmetric-key algorithm), also known as symmetric encryption, private key encryption or shared key encryption, refers to the encryption algorithm that uses the same key for encryption and decryption, that is, the communication used for encryption and decryption An encrypted password known to both parties.

[0028] An asymmetric encryption algorithm refers to an encryption algorithm that uses different keys for encryption and decryption, also known as public-private key encryption, that is, an encryption key is used for encryption and decry...

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PUM

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Abstract

The invention provides a fingerprint identification method and device, a password key and a storage medium, and the method comprises the steps of obtaining a to-be-verified fingerprint image and a pre-stored fingerprint key ciphertext, carrying out the user-defined encryption of the fingerprint key ciphertext, transmitting the encrypted fingerprint key ciphertext to a main control processor, enabling the main control processor to decrypt the fingerprint key ciphertext in a user-defined manner, and returning a fingerprint key for decrypting the fingerprint key ciphertext; judging whether the fingerprint number of the fingerprint image to be verified is matched from a fingerprint encryption library by using the fingerprint key or not; if yes, obtaining fingerprint numbers in a fingerprint number library, comparing the fingerprint numbers in the fingerprint number library with the fingerprint numbers for verification, and then determining the comparison verification result as the recognition result of the fingerprint image to be verified. The fingerprint feature is encrypted in advance and stored in the fingerprint encryption library, the fingerprint key used for decrypting the fingerprint encryption library is encrypted and decrypted by the main control processor, and meanwhile, internal physical communication is user-defined encryption, so that the fingerprint identification security is improved.

Description

technical field [0001] The present application relates to the technical fields of fingerprint identification, smart key and data security, in particular, to a fingerprint identification method, device, cipher key and storage medium. Background technique [0002] At present, in the process of identifying fingerprints, fingerprint features or fingerprint images are usually stored or transmitted in plain text inside the chip, and the processing chip for processing fingerprint features or fingerprint images is usually a common microprocessor. Stored data can be easily read or replaced, and data transmitted in ordinary microprocessors can be easily intercepted or intercepted. Therefore, there is a problem of insufficient security in the process of identifying fingerprints. Contents of the invention [0003] The purpose of the embodiments of the present application is to provide a fingerprint identification method, device, encryption key and storage medium, which are used to im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/32G06F21/60G06K9/00
CPCG06F21/32G06F21/602
Inventor 李玮廖强张俊峰夏博儒陈维谢晓民吴魁
Owner 罗克佳华(重庆)科技有限公司