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Fingerprint encryption device and implementation method thereof

An implementation method, fingerprint technology, applied in the field of communication, can solve the problems of low security level, poor physical defense attack ability, easy to be cracked, etc., to prevent illegal replacement of security chips or illegal access, prevent malicious tampering, and facilitate software upgrades Effect

Inactive Publication Date: 2017-05-17
DATANG MICROELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, fingerprint technology has become a standard configuration of handheld mobile terminals. Apple's technology puts the fingerprint algorithm and fingerprint storage in the isolation area of ​​the CPU (Central Processing Unit, central processing unit), and the security level is low, because TEE ( Trust Execution Environment, Trusted Execution Environment) storage security is not enough to ensure the security of key data, TEE's physical defense attack ability is poor, and the data in the external memory may be tampered
[0003] In the prior art, the fingerprint template is stored in the external FLASH (flash memory), which is easy to be cracked. The fingerprint template is the key to the fingerprint of the mobile terminal. The fingerprint unlocking of the mobile terminal, fingerprint payment, etc. all use the currently collected fingerprint and compare it with the fingerprint template. Yes, so the fingerprint template is a key data, and a more secure solution should be required

Method used

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  • Fingerprint encryption device and implementation method thereof
  • Fingerprint encryption device and implementation method thereof
  • Fingerprint encryption device and implementation method thereof

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0035] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0036] The current technology puts the fingerprint template in the CPU isolation area, but the security level is not high. The embodiment of the present invention performs secure storage of the fingerprint template based on the TEE, and keeps the fingerpr...

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Abstract

The invention discloses a fingerprint encryption device and an implementation method. The fingerprint encryption device is applied to a mobile terminal, and comprises a fingerprint input module, a main control module and a fingerprint encryption module connected in sequence, wherein the fingerprint input module is used for receiving an input fingerprint, and sending the fingerprint to the main control module; the main control module is used for performing image processing on the received fingerprint, extracting a fingerprint template, and transmitting a part of data in the fingerprint module to the fingerprint encryption module; and the fingerprint encryption module is used for storing the received data of the fingerprint template in an encrypted manner. According to the device and the method provided by the embodiment of the invention, the part of data in the fingerprint data is stored in the encrypted manner, so that secure storage of the fingerprint template can be ensured.

Description

technical field [0001] The invention relates to the communication field, in particular to a fingerprint encryption device and a realization method. Background technique [0002] At present, fingerprint technology has become a standard configuration of handheld mobile terminals. Apple's technology puts the fingerprint algorithm and fingerprint storage in the isolation area of ​​the CPU (Central Processing Unit, central processing unit), and the security level is low, because TEE ( Trust Execution Environment, Trusted Execution Environment) storage security is not enough to ensure the security of key data, TEE's physical defense attack capability is poor, and data in external memory may be tampered with. [0003] In the prior art, the fingerprint template is stored in the external FLASH (flash memory), which is easy to be cracked. The fingerprint template is the key to the fingerprint of the mobile terminal. The fingerprint unlocking of the mobile terminal, fingerprint payment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60G06F21/32
CPCG06F21/32G06F21/602G06F2221/2107
Inventor 范丽芳王京阳王勇奚森涛
Owner DATANG MICROELECTRONICS TECH CO LTD
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