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Domain name detection method and device

A domain name detection and domain name technology, applied in the computer field, can solve data security threats, DN cannot be determined, etc.

Active Publication Date: 2020-09-11
亚信科技(成都)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, after the DNS server receives the DN, it cannot determine whether the received DN is an illegal domain name even through the blacklist detection. In this case, the security of the data will still be threatened

Method used

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  • Domain name detection method and device
  • Domain name detection method and device
  • Domain name detection method and device

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

[0034] In the description of the present invention, unless otherwise specified, " / " means "or", for example, A / B may mean A or B. The "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone These three situations. In addition, "at least one" means one or more, and "plurality" means two or more. Words such as "first" and "second" do not limit the number and order of execution, and words such as "first" and "second" do not necessarily limit the difference.

[0035] Hereinafter, the inventive concept of the present invention is introduced: at present, operation and maintenance personnel are provided with blacklis...

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PUM

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Abstract

The invention discloses a domain name detection method and device, relates to the technical field of computers, and is used for detecting whether an internationalized domain name (IDN) is valid or not. The method comprises the steps of obtaining a first feature sequence, wherein the first feature sequence is used for uniquely identifying a to-be-detected IDN; determining the similarity between thefirst feature sequence and each feature sequence in a stored feature sequence set, wherein each feature sequence in the feature sequence set is used for uniquely identifying a valid domain name; if the target similarity is greater than a first preset threshold, determining that the to-be-detected IDN is invalid, wherein the target similarity is the similarity with the highest numerical value in the determined similarities. The method in the embodiment of the invention is applied to detecting invalid domain names.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a domain name detection method and device. Background technique [0002] Internationalized domain names (IDN) refer to Internet domain names that use special characters or letters (such as Chinese, Arabic, Cyrillic, etc.) in whole or in part. IDNs and domain names composed in English (for ease of description, they are all represented by domain names (DN)) can be converted to each other. For example: figure 1 The domain name 1 shown is a DN, and the domain name 2 is an IDN, and the domain name 1 and the domain name 2 can be converted to each other. [0003] In practical applications, different languages ​​may have similar language features, such as Cyrillic and Latin alphabets. Many hackers take advantage of this feature by disguising an illegal IDN as a legitimate domain name. For example, figure 1 The domain name 2 shown is an illegal IDN, and the domain name 3 is a legit...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/12
CPCH04L63/1466H04L63/1483H04L63/1416H04L61/4511
Inventor 朱仕阳李春江高福海
Owner 亚信科技(成都)有限公司
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