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Intelligent mobile terminal random encryption and decryption system based on fingerprint characteristics

An intelligent mobile terminal and fingerprint feature technology, applied in the payment system, payment system structure, instruments, etc., can solve the problems of limited sampling of feature points, large dependence on image matching algorithms, hidden dangers of mobile payment and mobile terminal information security, etc., to achieve improvement safety effect

Active Publication Date: 2015-09-16
SHENZHEN WATER WORLD INFORMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fingerprint identification also has security risks. The size limitation of mobile smart terminals results in a small contact area of ​​the fingerprint sensor and limited sampling of feature points. The algorithm based on fingerprint image matching is based on fuzzy comparison of similarity and relies heavily on image matching algorithms. Therefore, through some Special means can also be cracked, the probability of cracking is about 1 / 50000, which brings hidden dangers to mobile payment and mobile terminal information security

Method used

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  • Intelligent mobile terminal random encryption and decryption system based on fingerprint characteristics

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Such as figure 1 As shown, the random encryption and decryption system for intelligent mobile terminals based on fingerprint features provided by the embodiment of the present invention includes a fingerprint identification module 2 , a password input module 3 , and a baseband processing and intelligent application processing module 1 .

[0027] The fingerprint identification module 2 is used to collect the initial fingerprint input by the user. The fingerprint identification module 2 is composed of a chip, sapphire, metal ring, soft board, carrier board, etc., and is connected with the baseband processing and intelligent application processing module 1 by an SPI high-speed bus interface. The fingerprint identification module 2 adopts a cap...

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Abstract

The invention relates to an intelligent mobile terminal random encryption and decryption system based on fingerprint characteristics. An initial code is utilized to perform symmetrical encryption on initial fingerprints so as to encrypted fingerprints; the initial code and the encrypted fingerprints are utilized to perform dual encryption on an intelligent mobile terminal. During decryption, the encrypted fingerprints can be decrypted to obtain decrypted fingerprints only if an input code is matched with the initial code, and further the decryption of the intelligent mobile terminal can be finished only if the decrypted fingerprints are matched with input fingerprints. Since the encrypted fingerprints are obtained by performing symmetrical encryption on the initial fingerprints by use of the initial code, and different encrypted fingerprints are obtained by inputting different initial codes, so that random encryption for the initial fingerprints can be realized; furthermore, since encryption and decryption are executed in a trust zone safe mode, unauthorized software can not acquire an encryption and decryption algorithm, even if the initial code and the encrypted fingerprints are obtained, correct decrypted fingerprints for realizing fingerprint matching can not be obtained, so that the safety of the intelligent mobile terminal is greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of fingerprint encryption, in particular to an intelligent mobile terminal random encryption and decryption system based on fingerprint features. Background technique [0002] As payment migrates to mobile terminals, security risks are also increasing. The loss of mobile phones and the theft of Trojan horse software have turned mobile media such as mobile phones into undefended mobile vaults. Fingerprint identification refers to identification by comparing the detailed feature points of different fingerprints. Because fingerprint identification has the advantages of fast, convenient, safe, unique, and will not be lost, especially the inherent characteristics of users, fingerprint identification will allow them It is widely used in mobile terminal security and mobile payment services. However, fingerprint identification also has security risks. The size limitation of mobile smart terminals results in a smal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/31G06F21/32G06Q20/38G06Q20/40
CPCG06F21/31G06F21/32G06Q20/3823G06Q20/40145
Inventor 谢恩郑勇张立新
Owner SHENZHEN WATER WORLD INFORMATION CO LTD
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