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Website filtering method and system based on https encryption

A filtering method and website technology, applied in the field of communication, can solve problems such as security risks, stealing online banking, and being easily exploited.

Active Publication Date: 2017-06-16
SANGFOR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has great security risks and is easy to be exploited to achieve illegal purposes, such as stealing online banking passwords

Method used

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  • Website filtering method and system based on https encryption
  • Website filtering method and system based on https encryption
  • Website filtering method and system based on https encryption

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Embodiment Construction

[0037] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0038] Glossary:

[0039] SNI (Server Name Indication) is an important extension of TLS (Transport Layer Security) defined in RFC3546. The domain name accessed by the client can be identified in the handshake request packet of the TLS handshake process. This feature enables the server to serve multiple HTTPS sites on the same port on the same IP, and these sites can use different certificates.

[0040] refer to figure 1 , figure 1 This is a schematic flowchart of the first embodiment of the website filtering method based on HTTPS encryption according to the present invention.

[0041] The present invention proposes a website filtering method based on HTTPS en...

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PUM

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Abstract

The present invention involves a website filtering method and system based on HTTPS encryption, grab the connection request data packet sent by the terminal to the server, obtain the access website domain name in the data packet, and obtain the first webpage of the access website domain name and pre -stored website.When the type keyword matching, intercept the connection request data packet sent by the user side, that is, the user is prohibited from accessing the website to achieve the purpose of the website filtering.The specific data makes it safer to filter on the website.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a website filtering method and system based on HTTPS encryption. Background technique [0002] HTTPS (Hypertext Transfer Protocol over Secure Socket Layer) is a very common encrypted communication method on the Internet, which can effectively protect the security of the communication process. However, while HTTPS implements encrypted communication, it is difficult for network filtering devices to filter, and filtering cannot be performed according to the URL (Uniform Resource Locator, Uniform Resource Locator) type of the visited website. For example, it is difficult to prohibit access to online banking (usually encrypted by HTTPS), but to access other HTTPS websites. [0003] To implement HTTPS website filtering, the common method is to use the man-in-the-middle attack method. The filtering device replaces the certificate between the client and the server, so t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08
Inventor 袁义金
Owner SANGFOR TECH INC
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