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Information encryption method and device, information decryption method and device, and security system

A technology for information encryption and information decryption, applied in the direction of program/content distribution protection, etc., can solve problems such as the inability to ensure the security of text content in web pages

Pending Publication Date: 2019-10-11
BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A technical problem solved by the embodiments of the present disclosure is: the security of the text content in the webpage cannot be ensured

Method used

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  • Information encryption method and device, information decryption method and device, and security system
  • Information encryption method and device, information decryption method and device, and security system
  • Information encryption method and device, information decryption method and device, and security system

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Embodiment Construction

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

[0066] Relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0067] At the same time, it should be understood ...

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PUM

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Abstract

The invention provides an information encryption method and device, an information decryption method and device and a security system. The information encryption device loads a picture, determines thetext length of the to-be-encrypted text, converts each character of the to-be-encrypted text into a corresponding character string, and writes the text length and the character string of each character into the corresponding Alpha element in the RGBA channel array of the picture in sequence, so that the to-be-encrypted text is embedded into the picture. The information decryption device extractsthe picture containing the encrypted information, extracts text length information of the encrypted information from the specified Alpha elements in an RGBA channel array of a picture, sequentially extracts character strings from corresponding Alpha elements in the RGBA channel array of the picture according to the text length information, and analyzes the extracted character strings to obtain a text carried in the picture. By hiding the content of the to-be-encrypted text into the Alpha value of the picture, JavaScript and CSS script content of the webpage can be encrypted, so that the security of the webpage is effectively enhanced.

Description

technical field [0001] The present disclosure relates to the field of information security, and in particular to an information encryption method and device, an information decryption method and device, and a security system. Background technique [0002] In the current webpage, the functional script running in the webpage is declared through the webpage scripting language JavaScript, and the style of the webpage is declared through the cascading style sheet CSS, both of which are interpreted rather than compiled. In this way, plaintext is loaded when the webpage is running, and webpage visitors can easily obtain JavaScript or CSS script files and content through the script viewing function of the browser or through the network packet capture tool. Understanding sensitive information such as webpage functions and interface communication through reading brings great security risks to webpage applications. [0003] In order to improve security, the method of code compression ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/14
CPCG06F21/14
Inventor 唐超
Owner BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD