Multi-fingerprint password recognition method and system based on field programmable gate array

Abstract

The invention provides a multi-fingerprint code system based on Field Programmable Gate Array (FPGA) and a realization method of the system. The invention adopts an FPGA core chip, a fingerprint collector and other peripheral equipments and includes fingerprints code generation, fingerprints code storage and fingerprints code identification. The fingerprints code takes each fingerprint as an element of the code, and a user can choose the fingerprints of a plurality of fingers to arrange and combine the fingerprints optionally to generate the code. The system adopts the FPGA technique as a carrier and combines the fingerprints identification and code idea perfectly to realize the double encryption function of both fingerprints identification and code identification. Only when the input fingerprints, fingerprint sequence and fingerprint quantity are all identical to the pre-set fingerprint code, a matching-success signal can be provided by the system.

Description

technical field [0001] The invention relates to a biological feature identification technology based on field programmable gate array (FPGA) and fingerprint password, in particular to a fingerprint password identification method and system. Background technique [0002] In the process of social interaction, people often need to carry out identity authentication. However, on the one hand, common object identification has obvious security loopholes. [0003] Various common identity authentication methods such as keys, passwords, certificates and IC cards, etc., all indirectly realize the identity confirmation of the holders of related objects by identifying people with "things". This method has low accuracy and large security holes. Examples of various forged documents and tokens are common in real life, and passwords are deciphered or embezzled from time to time. [0004] With the development of image processing and pattern recognition technology, biometric-based recogniti...

AI Technical Summary

Problems solved by technology

[0006] At present, in foreign countries, many automatic fingerprint identification systems have been put into actual production and life, but the current fingerprint identification body number is not perfect, and my country's technology in fingerprint collection, algorithm research, and fingerprint identification system construction is still relatively lag behind, so the research of the present invention has important practical significance

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