Featured Research

from universities, journals, and other organizations

Computer Network Denial Of Service Denial

Date:
October 2, 2009
Source:
Inderscience Publishers
Summary:
A way to filter out denial of service attacks on computer networks, including cloud computing systems, could significantly improve security on government, commercial, and educational systems.

A way to filter out denial of service attacks on computer networks, including cloud computing systems, could significantly improve security on government, commercial, and educational systems. Such a filter is reported in the Int. J. Information and Computer Security by researchers from Auburn University in Alabama.

Denial of Service (DoS) and distributed Denial of Service (DDoS) attacks involve an attempt to make a computer resource unavailable to its intended users. This may simply be for malicious purposes as is often the case when big commercial or famous web sites undergo a DDoS attack. However, it is also possible to exploit the system's response to such an attack to break system firewalls, access virtual private networks, and to access other private resources. A DoS attack can also be used to affect a complete network or even a whole section of the Internet.

Commonly, attack involves simply saturating the target machine with external internet requests. In the case of a DDoS attack the perpetrator recruits other unwitting computers into a network and uses a multitude of machines to mount the attack. The result is that the resource, whether it is a website, an email server, or a database, cannot respond to legitimate traffic in a timely manner and so essentially becomes unavailable to users.

Methods for configuring a network to filter out known DoS attack software and to recognize some of the traffic patterns associated with a mounting DoS attack are available. However, current filters usually rely on the computer being attacked to check whether or not incoming information requests are legitimate or not. This consumes its resources and in the case of a massive DDoS can compound the problem.

Now, computer engineers John Wu, Tong Liu, Andy Huang, and David Irwin of Auburn University have devised a filter to protect systems against DoS attacks that circumvents this problem by developing a new passive protocol that must be in place at each end of the connection: user and resource.

Their protocol - Identity-Based Privacy-Protected Access Control Filter (IPACF) - blocks threats to the gatekeeping computers, the Authentication Servers (AS), and so allows legitimate users with valid passwords to access private resources.

The user's computer has to present a filter value for the server to do a quick check. The filter value is a one-time secret that needs to be presented with the pseudo ID. The pseudo ID is also one-time use. Attackers cannot forge either of these values correctly and so attack packets are filtered out.

One potential drawback of the added layer of information transfer required for checking user requests is that it could add to the resources needed by the server. However, the researchers have tested how well IPACF copes in the face of a massive DDoS attacks simulated on a network consisting of 1000 nodes with 10 gigabits per second bandwidth. They found that the server suffers little degradation, negligible added information transfer delay (latency) and minimal extra processor usage even when the 10 Gbps pipe to the authentication server is filled with DoS packets. Indeed, the IPACF takes just 6 nanoseconds to reject a non-legitimate information packet associated with the DoS attack.


Story Source:

The above story is based on materials provided by Inderscience Publishers. Note: Materials may be edited for content and length.


Journal Reference:

  1. Modelling and simulations for Identity-Based Privacy-Protected Access Control Filter (IPACF) capability to resist massive denial of service attacks. Int. J. Information and Computer Security, 2009, 3, 195-223

Cite This Page:

Inderscience Publishers. "Computer Network Denial Of Service Denial." ScienceDaily. ScienceDaily, 2 October 2009. <www.sciencedaily.com/releases/2009/09/090930141541.htm>.
Inderscience Publishers. (2009, October 2). Computer Network Denial Of Service Denial. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2009/09/090930141541.htm
Inderscience Publishers. "Computer Network Denial Of Service Denial." ScienceDaily. www.sciencedaily.com/releases/2009/09/090930141541.htm (accessed September 17, 2014).

Share This



More Computers & Math News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

2K Drafts Face-Mapping Tech for New Game

2K Drafts Face-Mapping Tech for New Game

AP (Sep. 17, 2014) "NBA 2K15" is angling for a slam dunk with an innovative new way to put players in the game. Gamers will be able to digitally graft lifelike 3D renditions of their faces onto virtual players using the PlayStation 4 and Xbox One cameras. (Sept. 17) Video provided by AP
Powered by NewsLook.com
FBI Finishes $1 Billion Facial Recognition System

FBI Finishes $1 Billion Facial Recognition System

Newsy (Sep. 15, 2014) The FBI announced it plans to make its Next Generation Identification System available to law enforcement, but some privacy advocates are worried. Video provided by Newsy
Powered by NewsLook.com
A+ for Apple iPhone Pre-Sales

A+ for Apple iPhone Pre-Sales

Reuters - Business Video Online (Sep. 15, 2014) Apple says it received a record 4 million first-day pre-orders for its new iPhone 6 and iPhone 6 Plus, pushing delivery dates into October. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com
Microsoft to Buy 'Minecraft' Maker for $2.5B

Microsoft to Buy 'Minecraft' Maker for $2.5B

AP (Sep. 15, 2014) Microsoft will acquire the maker of the long-running hit game Minecraft for $2.5 billion as the company continues to invest in its Xbox gaming platform and looks to grab attention on mobile phones. (Sept. 15) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

    Technology News



    Save/Print:
    Share:

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile: iPhone Android Web
    Follow: Facebook Twitter Google+
    Subscribe: RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins