A method and system for detecting interest flooding attacks in content-centric networks

A content-centric network, flooding attack technology, applied in the field of content-centric network interest flooding attack detection, can solve problems such as interest flooding attacks, and achieve the effect of solving interest flooding attacks

Inactive Publication Date: 2021-10-15
BEIJING INFORMATION SCI & TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to provide a method and system for detecting interest flooding attacks in content-centric networks, which can solve the problem of interest flooding attacks in content-centric networks

Method used

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  • A method and system for detecting interest flooding attacks in content-centric networks
  • A method and system for detecting interest flooding attacks in content-centric networks
  • A method and system for detecting interest flooding attacks in content-centric networks

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Embodiment 2

[0091] figure 2 It is a structural diagram of a detection system for interest flooding attacks in a content-centric network according to Embodiment 2 of the present invention. Such as figure 2 As shown, a detection system for interest flooding attacks in content-centric networks, including:

[0092] The traffic acquisition module 201 is configured to acquire traffic in the network.

[0093] The time series division module 202 is configured to divide the traffic into time series to obtain multiple time series.

[0094] The Hurst exponent calculation module 203 is configured to calculate the Hurst exponent of each time series.

[0095] The cumulative value determination module 204 of the Hurst exponent is used for accumulating the small variation of the Hurst exponent using a non-parametric accumulation and bilateral detection algorithm to obtain the cumulative value of the Hurst exponent.

[0096] An information entropy calculation module 205, configured to calculate the ...

Embodiment 3

[0102] S10, counting traffic in the network. Whenever an interest packet is received, information such as the content name of the interest packet, the number of requests, and the current time are collected.

[0103] Among them, the specific process of S10 is as follows:

[0104] S101, expanding the router PIT structure, adding a count field to record the number of times the Interest packet with the content name is requested in the current router;

[0105] S102. Whenever the network receives an Interest packet, record information such as the content name, count value, and current time of the current Interest packet.

[0106] For example, the data "10027999 nanoseconds since start of simulation: / root / good / %FE%03:14" indicates that at time 10027999ns, the interest packet with the content name " / root / good / %FE%03" was requested The number of times is 14.

[0107] S20, defining the size of the sliding window value, and dividing the collected network traffic into time series, so a...

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Abstract

The invention discloses a method and system for detecting interest flooding attacks in a content-centric network. The method includes: obtaining traffic in the network; dividing the traffic into time series to obtain multiple time series; calculating Hurst exponents of each time series; using non-parametric accumulation and bilateral detection algorithms for the Hurst exponents Carrying out the accumulation of small changes to obtain the cumulative value of the Hurst exponent; calculating the information entropy value of each of the time series; using non-parametric accumulation and bilateral detection algorithms to accumulate the small changes in the information entropy value, Obtaining the cumulative value of the information entropy value; judging whether there is an interest flooding attack in the current network according to the cumulative value of the Hurst exponent and the cumulative value of the information entropy value. The method or system of the present invention can solve the problem of interest flooding attack in the content-centric network.

Description

technical field [0001] The invention relates to the field of detection of interest flooding attacks on content-centric networks, in particular to a detection method and system for interest flooding attacks on content-centric networks. Background technique [0002] "Content Centric Network" (ContentCentricNetwork, CCN) is one of the most promising architectures of the future Internet. CCN names the content, and transmits information in the network through interest packets (Interest) and data packets (Data). Among them, the interest packet is a content request packet initiated by the user, carrying information such as content name; the data packet carries information requested by the user, and is used to satisfy the interest packet. [0003] Different from the traditional TCP / IP network, CCN replaces the IP address with the content name as the unique identifier of information transmission in the network, thus eliminating security problems such as source address forgery attack...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/1408H04L63/1441
Inventor 徐雅斌徐婷
Owner BEIJING INFORMATION SCI & TECH UNIV
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