Webpage text encryption and decryption method based on random fonts

Abstract

The invention provides a webpage text encryption and decryption method based on random fonts, and belongs to the technical field of the Internet. By randomly generating the mapping relation between the characters and the fonts in the CMAP, the custom fonts are quickly generated, encryption rendering is carried out on the specific characters in the webpage, and therefore data cannot be directly obtained in an original text of the webpage, and key data are effectively prevented from being stolen in the webpage environment. The method has no influence on the whole style, and the style unificationis kept; the font file only describes the vector information of the glyph, and compared with a picture, the font file is very small in occupied space, font drawing is completely completed by a browser, and the user experience is hardly influenced. According to the method, effective obstacles are caused to malicious collection of part of crawlers, and the risk that a website is maliciously attacked is reduced; meanwhile, a large amount of manpower, material resources and money cost consumed in many invalid accesses are saved, and the method has important significance in improving the user experience degree and satisfaction degree of company products.

Description

Technical field [0001] The present invention relates to the field of Internet technology, in particular to the encryption and decryption process of webpage font display information. Background technique [0002] With the rapid development of Internet technology, the network has become a carrier of a large amount of information. Various types of terminals can obtain information required by users from the network and display it in the form of web pages. In the Internet age, massive amounts of public data are generated every day. There are many valuable key data in web pages (such as product sales and price information in e-commerce websites). These data contain inestimable huge value. Therefore, to obtain The crawler technology that discloses data information on the Internet came into being. [0003] However, for website operators, the operation of some malicious crawlers has caused a large amount of network access traffic, which has increased concurrency and network bandwidth press...

AI Technical Summary

Problems solved by technology

For example, replacing part of the text in the web page with pictures effectively increases the difficulty for crawlers to obtain correct information, but also increases the time for web page acquisition and rendering due to the use of a large number of pictures, and the non-editability of the pictures themselves causes style layout deviation, which affects the user experience

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