Method and equipment for generating business code from fingerprint image

Abstract

The invention provides a method for generating a business code from a fingerprint image, and the method comprises the following steps of: collecting a plurality of fingerprint features from gathered fingerprinted images; calculating a dot spacing value of every two features according to the collected fingerprint features; selecting a plurality of the dot spacing values according to preset mathematic model so as to form a digital sequence; and carrying out Hash operation on the formed digital sequence so as to obtain a digest value thereof to be taken as the business code. The invention also provides equipment for generating the business code from the fingerprint image.

Description

technical field [0001] The present invention relates to the field of security, in particular to the field of generating business passwords from fingerprint images. Background technique [0002] In the prior art, the user needs to manually input the service password to complete the authentication, or directly send the locally stored user authentication information to complete the authentication. In the scenario where the user manually enters the password, too many passwords that are too long are easy to be forgotten, and short passwords are easy to be cracked, so there is a problem that the password is forgotten or cracked; in addition, the user needs to enter the password to complete the authentication, not only the operation steps are many , affecting the user experience, and the password is easily leaked, posing a security risk. In the scenario of directly sending user authentication information, although the user does not need to enter a password, the user experience is ...

AI Technical Summary

Problems solved by technology

[0006] The existing methods for generating authentication information from fingerprints have the following defects: the number of feature points distributed in each screen of the fingerprint is combined into a number, and the dynamic password generation elements are used to generate a business password. It is relatively small, and the probability of different fingerprints generating the same number is high, so the characteristic information of fingerprints cannot be effectively used to generate business passwords, and dynamic password generation elements need to be added to ensure the quality of business passwords

In addition, it is also necessary for the business platform to process the fingerprint image to obtain a number as the seed for generating the business password. If the existing business platform wants to use this method, it needs to be modified.

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