A password generation system and a method based on slice graphics

Abstract

The invention relates to a password generation system and a password generation method based on slice graphics. The system comprises a graphics setting module, which is used for selecting graphics used for password input and the quantity thereof; a graphics slicing module which is used for setting the slicing mode and the number of slices of each graph, and slicing each graph according to the slicing mode and the number of slices; an input cipher collecting module, configured to collect input cipher information of a user, wherein the input cipher information refers to a graphics block selectedby the user and an order of selecting the graphics block; a cipher generation module, configured to code and convert the graphics blocks in the input cipher information to obtain text strings of thecorresponding graphics blocks based on the HASH algorithm, and store the text strings as ciphers according to the order of the selected graphics blocks in the input cipher information; a password database. Compared with the prior art, the invention has the advantages of simple and convenient operation, large cipher space, easy memory, small storage space, shoulder peep resistance and the like.

Description

technical field [0001] The present invention relates to the field of information security, in particular to a password generation system and method based on slice graphics. Background technique [0002] In recent years, researchers at home and abroad have continuously proposed many new graphic cipher schemes. According to the memory form and input method of passwords, the existing graphic password schemes can be roughly divided into three categories: graphic passwords based on image recognition (recognition-based), graphic passwords based on recall (recall-based) and clue-based passwords. Graphical cipher for recall (cued-recall). [0003] (1) Graphic password scheme based on image recognition [0004] The earliest graphic password scheme based on image recognition is the Déjà Vu scheme proposed by Dhamija et al. at the USENIX Security Annual Conference in 2000, which uses random artistic pictures generated by hash functions to replace meaningless strings. When authentica...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to overcome the problem that the current text password system in the above-mentioned prior art is not easy to memorize, and the security is not high, and too many graphics input restrictions in the graphic password are inconvenient to input, and the excessive number of graphics requires a large amount of storage space. Graphical features are too complex and difficult to memorize, anti-shoulder peeping performance is not good, can not effectively prevent spyware, can not resist brute force attacks, password space is small and other defects, and provide a password generation system and method based on slice graphics, this new type of graphics The password scheme only needs to occupy a small amount of storage space for storing password graphics, and it can be used as conveniently as a text password, and the password is easier to remember and recall than the text password series. It has the advantages of simple and convenient operation, large password space, easy memory, and storage space Advantages such as small size and anti-shoulder peeping

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