A verification code optimization method

Abstract

The invention discloses a verification code optimization method, comprising the following steps: S1, extracting the feature value of each character; S2, calculating the character similarity characteristic value according to the characteristic value; S3, distinguishing the character into characters according to the character similarity characteristic value Confusing character group and non-confusing character group; S4, calculating the keyboard distance between each character in the non-confusing character group and other characters; S5, randomly generating the first character of the verification code in the non-confusing character group; S6, according to the non-confusing character group The keyboard distance between other characters in the group and the first character of the verification code screens the easy-to-operate character group; S7, randomly generates other characters of the verification code in the easy-to-operate character group, and forms a complete verification code with the first character of the verification code and displays it. On the premise of retaining the function of man-machine verification, this random verification code solves the problems of difficult recognition, difficulty in memory and difficult input of the current verification code.

Description

technical field [0001] The invention relates to the field of security verification, in particular to a method for generating verification codes. Background technique [0002] In today's information age, human-computer verification technology has emerged for the safety of information access, and the usual human-computer verification technology refers to verification codes. Verification codes can prevent malicious cracking of passwords, and effectively prevent a hacker from making continuous login attempts to a specific registered user with a specific program brute force cracking method. In fact, using verification codes is a common way for many websites now. Although there are many types of commonly used verification codes, generally speaking, the verification codes are pure numbers, pure letters, or random characters mixed with numbers and letters. [0003] Currently commonly used verification codes composed of random characters can effectively prevent malicious cracking of...

AI Technical Summary

Problems solved by technology

In this regard, in real life, there is a need for a verification code generation method that can improve the efficiency of user input verification codes, optimize the verification code reading experience, and achieve the effect of man-machine verification, so as to solve the problems of difficult recognition, memory, and difficulty in current verification codes. input question

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