HTTPS (Hypertext Transfer Protocol Secure) website filtration and interdict alarm method and device

A website and filtering technology, applied in the Internet field, can solve the problem of providing blocking alarms, etc., and achieve the effect of accurate filtering

Active Publication Date: 2014-06-18
SANGFOR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method does not require man-in-the-middle attacks on HTTPS requests, it cannot provide blocking alarms after filtering requests

Method used

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  • HTTPS (Hypertext Transfer Protocol Secure) website filtration and interdict alarm method and device
  • HTTPS (Hypertext Transfer Protocol Secure) website filtration and interdict alarm method and device
  • HTTPS (Hypertext Transfer Protocol Secure) website filtration and interdict alarm method and device

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Embodiment Construction

[0041] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0042] The invention provides a method for filtering and blocking alarms of HTTPS websites.

[0043] refer to figure 1 ,

[0044] In one embodiment, the method for HTTPS website filtering and blocking alarm includes:

[0045] Step S10, receiving the request packet, and obtaining the IP address from the request packet;

[0046] Step S20, when the request packet is an access request for accessing an HTTPS website, search the DNS list for the DNS corresponding to the IP address;

[0047] When the request data packet is received, the IP address to be accessed is obtained from the request data packet. In this embodiment, the request data packet may be a TCP data packet based on the TCP protocol. Judging whether the received request packet is an access request to visit the HTTPS website, when specifically judging, since...

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Abstract

The invention discloses an HTTPS (Hypertext Transfer Protocol Secure) website filtration and interdict alarm method. The method comprises the following steps of receiving a request data package and obtaining an IP (Internet protocol) address from the request data package; when the request data package is an access request for accessing an HTTPS website, searching for a DNS (Domain Name Server) corresponding to the IP address in a DNS list; judging whether a filtration website exists in the DNS list; if so, filtering the access request, and returning an interdict alarm. The invention also discloses an HTTPS website filtration and interdict alarm device. As not all HTTPS requests need to be intercepted and captured, only the HTTPS request in which the filtration website exists in the DNS list is filtered, other HTTPS requests pass, and thus the HTTPS website is accurately filtered, and the interdict alarm can be provided for a user after the requests are filtered.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a method and device for filtering HTTPS websites and blocking alarms. Background technique [0002] Using HTTPS (Hypertext Transfer Protocol over Secure Socket Layer) to access the site is a secure access method. During the access process, SSL (Secure Sockets Layer, Secure Sockets Layer) is used to encrypt data to ensure data security. However, after encryption, it will cause difficulties for the gateway device to filter HTTPS sites. Currently commonly used filtering methods include the following two: [0003] 1. Use the method of man-in-the-middle attack to intercept all HTTPS requests and analyze their content, so that the URL (Uniform Resource Locator, Uniform Resource Locator) of the HTTPS request can be accurately filtered, and blocking can also be provided after filtering the request alarm. However, the defect of this method is that all HTTPS requests will be interc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/24
Inventor 袁义金
Owner SANGFOR TECH INC
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