Internet image search based Web verification code generation method

Abstract

The invention discloses an Internet image search based Web verification code generation method. The method comprises the steps of key word selection, picture searching and caching, picture preprocessing, user operation, verification and the like. Nouns are randomly selected from a word bank, and picture resources corresponding to the nouns are obtained by utilizing a search engine, so that corresponding relationships between certain nouns and pictures are generated; the relationships are real and can be conveniently identified by users, but difficultly distinguished by computer programs, so that the Web phenomenon that certain malicious programs masquerade as users to perform unreasonable operations can be avoided, and the security and reliability of a network can be improved. The method solves the technical problems such as poor user experience and high possibility of automatically identifying and cracking the content of verification codes by programs in a verification process for an existing verification code technology. The method has the advantages of being large in verification code space, high in reliability, simple in verification process, quick in user identification, good in user experience and the like.

Description

technical field [0001] The invention relates to a verification code generation method based on the Internet, in particular to a method for obtaining verification picture resources based on an Internet search. Background technique [0002] The birth of verification code is accompanied by the continuous development of computer security technology and hacker technology. In order to prevent malicious users from using automatic registration tools to register website accounts in batches or repeatedly submitting forms to consume server resources, a network verification technology, verification code From distorted text symbols to processed text images (Huang Saiping, Xu Ming. 2009, Recognition and Improvement of Verification Code [J], Journal of Nanjing Normal University (Engineering Technology Edition), 9(2):84-88), experience Although the process from simple to complex has been improved to a certain extent, it also reduces the user's experience effect. Distorted text is often diff...

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Problems solved by technology

2009, Identification and improvement of verification code [J], Journal of Nanjing Normal University (Engineering Technology Edition), 9(2):84-88), experienced a process from simple to complex, although the security has been improved to a certain extent , but at the same time it also reduces the user's experience. Distorted text often makes it difficult for users to identify, which is annoying

In recent years, the picture verification code method has made some significant improvements, such as using picture content recognition instead of relying on pure text recognition, giving a picture and allowing users to select the content of the picture (Xu Ming. The recognition of verification code and Anti-recognition [D]. Nanjing University of Science and Technology 2007), this technology has a strong ability to defend against hacker attacks, but the number and source of pictures limit the effect of this method, the actual defense effect is not satisfactory, so the picture technology Some applications in the field of verification code recognition technology still need to be improved, and the implementation effect needs to be improved

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