Method for generating picture verification codes and system thereof

Abstract

The invention discloses a method for generating picture verification codes and a system thereof. The method for generating the picture verification codes comprises the following steps of: acquiring verification code request information; calling a character string randomly, labeling one or more characters in the character string randomly; saving one or more labeled characters as to-be-verified session for comparing with the verification codes inputted by users; and allowing the labeled character string to generate a verification code picture and displaying the picture, and simultaneously, prompting the users to input one or more labeled characters in the verification code picture. The method increases the difficulty of recognizing the characters in the verification code picture by a machine greatly, and simultaneously, increases the difficulty of utilizing such deciphering methods that all verification code pictures are recognized by artificial exhaustivity and results of artificial recognition are matched according to the characteristics of the pictures and the like greatly, so the safety of a network service system is improved greatly, and simultaneously, the difficulty of recognizing the verification codes is reduced and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of network applications, in particular to a method for generating a picture verification code and a system thereof. Background technique [0002] With the development of network services, some people will use "robot programs" to use a large number of free resources on the network, which will greatly reduce server performance, such as mass spam, etc.; "In order to achieve the purpose of paralyzing the service; some people use programs such as brute force cracking to carry out virtual property theft and so on. Therefore, image verification codes are more and more widely used as identification tools for distinguishing whether network service users are programs or human beings. [0003] The picture verification code is a picture containing characters. The characters in this verification code picture are usually distorted or added with some noise under the premise of ensuring that the human vision can be recogni...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a method and system for generating a picture verification code aimed at the unsafe defect of the verification code in the prior art, which increases the difficulty of machine recognition of the picture characters of the verification code, and also increases the use of such

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