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Biological feature template saving and verification method and biological feature identification device and terminal

A biometric identification and biometric technology, applied in the field of biometric identification, can solve the problems of biometric template leakage, potential safety hazards in the application of biometric templates, etc., and achieve the effect of eliminating potential safety hazards.

Active Publication Date: 2017-08-29
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the biometric template is stored in a not very secure storage area as a whole, if the storage area is attacked, the biometric template will be leaked as a whole, which will bring great harm to the application of the biometric template. Security risks

Method used

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  • Biological feature template saving and verification method and biological feature identification device and terminal
  • Biological feature template saving and verification method and biological feature identification device and terminal
  • Biological feature template saving and verification method and biological feature identification device and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Figure 1b It is a flowchart of a method for storing a biometric template provided by Embodiment 1 of the present invention. like Figure 1b As shown, the biological feature template preservation method includes:

[0057] S11. Process the biometric encryption template generated according to the biometric template encryption to obtain M sets of biometric encryption template data, where M≥2.

[0058] In this step, the biometric template can be generated by combining multiple biometric data, that is, the biometric template can be generated by combining multiple biometric data. Wherein, the biometric data can be obtained by performing fingerprint feature extraction and / or image feature extraction on the collected raw biometric data.

[0059] In this step, generating the biometric encrypted template based on the biometric template encryption may specifically be to use an AES (128-bit or 256-bit) encryption algorithm to encrypt the biometric template to generate the biomet...

Embodiment 2

[0074] figure 2 It is a flowchart of a method for storing a biometric template provided in Embodiment 2 of the present invention. like figure 2 As shown, on the basis of Embodiment 1 of the present invention, the method for storing the biometric template includes:

[0075] S21. Put the key used when generating the biometric encryption template according to the biometric template encryption into any position in the biometric encryption template.

[0076] The biometric encryption template is essentially a data sequence with a certain length, thus, placing the key in any position of the biometric encryption template can be placed in the biometric encryption template, that is, the data sequence. Before the first data, between any two data in the data sequence, and after the last data in the data sequence. When the key is inserted, the location where it is placed can be recorded, so that the key can be accurately located and extracted in subsequent applications such as decrypt...

Embodiment 3

[0083] image 3 It is a flow chart of a method for storing a biometric template provided in Embodiment 3 of the present invention. like image 3As shown, on the basis of Embodiment 1 of the present invention, the method for storing the biometric template includes:

[0084] S31. Put the verification data obtained by performing the consistency check on the biometric template into any position in the biometric template.

[0085] In this step, the biometric template can be generated by combining multiple biometric data, that is, the biometric template can be generated by combining multiple biometric data. Further, the biometric data refers to the data obtained by performing fingerprint feature extraction and / or image feature extraction on the collected biometric raw data, that is, performing biometric and / or image feature extraction on the collected biometric raw data , multiple biometric data can be obtained. At the same time, in order to ensure more accurate biometric data, ...

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Abstract

The embodiments of the present invention provides a biological feature template saving and verification method and a biological feature identification device and terminal, and belongs to the biological identification technology field. The biological feature template saving method comprises the steps of processing a biological feature encryption template encrypted and generated according to a biological feature template to obtain M sets of biological feature encryption template data, wherein M >=2; storing the M sets of biological feature encryption template data in N storage areas, at least one set of biological feature encryption template data is saved in each storage area, wherein 1<N<=M. According to the embodiments of the present invention, the biological feature encryption template is processed into multiple sets of biological feature encryption template data, and then the biological feature encryption template data is saved in at least two storage areas dispersedly, so that the multiple sets of biological feature encryption template data is saved in the plurality of storage areas dispersedly, is not easy to leak overall, and accordingly the larger potential safety hazards brought by the prior art to the application of the biological feature template can be eliminated effectively.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of biometric identification, and in particular to a method for storing and verifying a biometric feature template, a biometric feature identification device, and a terminal. Background technique [0002] Due to the uniqueness of the human body's biological characteristics such as fingerprints, palm prints, lip prints and irises, they can be used for identity verification to meet the security and confidentiality requirements of different application scenarios. For example, when laptops, mobile phones, and tablet computers are turned on, or when entering important confidential places, all need to collect the user's fingerprint for identity verification. [0003] When using biometrics as a means of authentication, such as Figure 1a As shown, the usual practice is to first process the raw biometric data into a biometric template, that is, a registration template, and then store the bio...

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L9/32G06F21/32G06F21/78
CPCG06F21/32G06F21/78H04L9/0866H04L9/0894H04L9/3236
Inventor 左勇
Owner SHENZHEN GOODIX TECH CO LTD
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