Method for keyless protection of data using a local array of disks
Burton J. Rosenberg
Problem
RAID data storage has an advantage of data redundancy between two or more disk drives. Therefore, when a single disk drive that has a typical life span of 3-5 years fails, data stored in a RAID system is not lost. This is a very convenient feature, for it rids of routine data back-up operations. However, disposing of a failed disk drive presents a data security problem, since data can be recovered from a failed disk. Therefore, proper disposal procedures such as mechanical destruction of failed disk drives need to be exercised, which is not always practical. The present invention solves the problem of secure disposal of failed disk drive unites of RAID systems.
Solution
The present invention is a method of writing data segments to different disk drives of a RAID system, so that each disk does not store the whole data and is not aware of data counterparts stored on other disk members of the RAID system. Data splitting, distribution, and subsequent reconstruction algorithms are executed at the disk controller. Therefore, when a failed disk drive module is disposed of, it does not carry any useful data that can be reconstructed by unauthorized person.
Competitive Advantage
Currently, when a user disposes of a failed disc drive, care must be taken to permanently erase sensitive data, which usually involves sending failed disk drive to a special service shop and paying associated fees. The present technology avoids these inconvenience and expenses.
Applications
Data storage devices
Patent Status
Utility U.S. Patent application filed on February 27, 2009.
Licensing Opportunity
We are seeking a commercialization partner with capabilities in product development, sales, and marketing. An exclusive license is available.
About the Inventors
Dr. Burton Rosenberg is an Associate Professor of Computer Science at the University of Miami. His interests include cryptography and data visualization. He is the discoverer of several security flaws in protocols and applications by Microsoft, Citrix, and others. He holds a Ph.D. from Princeton University, a Masters from Columbia, and a Bachelors from MIT. His background includes both in academia and industry, having been employed by Citrix, Medical Labs Automation, and as a digital signal processing consultant to Acoustic Research.
Selected References
Optimal Exercise of Russian Options in the Binomial Model. Robert W, Chen, Burton Rosenberg, Computational Finance and its Applications, WIT Press (2006) pp 171-181.
Inferring Model Parameters in Markets with Collars. Robert Chen, Burton Rosenberg, Yi-Tsung Lee, Computational Finance and its Applications, WIT Press (2004) 167-175.
