Verification code generation method, login verification method and login verification system

Abstract

The invention belongs to the technical field of network security, and provides a verification code generation method, a login verification method and a verification login system. The method includes:generating at least two patterns; establishing an action instruction library, wherein the action instruction library comprises multiple groups of action instructions, and each group of action instructions corresponds to one judgment standard; randomly selecting a group of action instructions, controlling a plurality of patterns to execute the action instructions, and marking judgment standards corresponding to the action instructions as selected standards; and comparing execution results of the plurality of patterns, and selecting one pattern meeting a selected standard as a target pattern. Through the technical scheme, the problem of poor security of the verification code in the prior art is solved.

Description

technical field

[0001] The invention belongs to the technical field of network security, and relates to a verification code generation method, a login verification method and a login verification system. Background technique

[0002] Captcha, also known as Turing Test (Completely Automated Public Turing test to tell Computers and Humans Apart, CAPTCHA for short), is a public fully automatic program that distinguishes whether a user is a computer or a human. In the actual use of the verification code, the computer as the server will automatically generate questions for the user to answer, and judge whether the user's answer is correct. The question must be answered only by a human, not by a computer. Therefore, users who answer the question correctly are considered human. The use of verification codes can prevent malicious cracking of passwords, swiping tickets, flooding forums, etc., thereby ensuring network security. At present, verification codes are easily cracked and ...

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