Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Databases can heal themselves on-the-fly

31.10.2002


An innovative new software can detect and correct a database impaired by an attack while the database system continues to process transactions, says a Penn State researcher.



"We simulated attackers’ behaviors on a database and then monitored the response of the database," said Dr. Peng Liu, assistant professor of information sciences and technology. "We can’t prevent attackers from getting in, but with this technology, the database can heal itself on-the-fly."

Liu performed the research underlying the technology while a faculty member at the University of Maryland – Baltimore County. He has since established his research team, the Cyber Security Group, in Penn State’s School of Information Sciences and Technology. The team’s areas of expertise include network security, intrusion detection and masking, survivable systems and attack prediction.


All databases are vulnerable to being breached by unauthorized users, former employees or hackers looking for a challenge. With more databases than ever, experts expect the number of database attacks to continue to rise. That leaves at risk such data-intensive applications as e-commerce, air traffic control, command-and-control, and credit card billing systems.

Although many intrusions can be detected soon after the database is breached, the damage usually doesn’t stop with the initial transaction. Subsequent transactions and data updating can spread the damage.

Existing recovery software creates its own problems. Rolling back activity to the initial damage is expensive because the work of many unaffected transactions by good users will be lost, Liu said. Second, for commercial databases, suspending the database to clean up the damage is undesirable, and in many cases, unacceptable. International banks, for instance, need 24-7 access to account data.

The family of algorithms developed by Liu and others can detect single, multiple or simultaneous attacks. But it does more. It isolates malicious transactions, so that many benign ones are preserved from being affected and having to be re-executed. It also repairs the database by containing the set of corrupted data objects and then, by undoing or unwinding the direct and indirect effects of the attack.

The technology has another advantage: The software can be adapted for static and on-the-fly repairs. Because it’s dynamic, new transactions can continue even while the database is being repaired. Furthermore, the new technology is intelligent and adaptive.

"The database can adapt its own behavior and reconfigure itself based on the attack," Liu said.

A prototype of this attack-resilient software is being tested by the Cyber Security Group and the U.S. Air Force.



Liu’s research was funded by the Air Force and the Defense Advanced Research Projects Agency. Subsequent grants have come from the National Science Foundation, the Air Force, DARPA and the U.S. Department of Energy.

The Penn State researcher and his co-authors, Paul Ammann and Sushil Jajodia, both of George Mason University, published their findings in the paper, "Recovery From Malicious Transactions," in the September issue of IEEE Transactions on Knowledge and Data Engineering.


Margaret Hopkins | EurekAlert!
Further information:
http://www.psu.edu/

More articles from Information Technology:

nachricht Powerful IT security for the car of the future – research alliance develops new approaches
25.05.2018 | Universität Ulm

nachricht Supercomputing the emergence of material behavior
18.05.2018 | University of Texas at Austin, Texas Advanced Computing Center

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>