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Minggu, 26 April 2009

A Structure Preserving Database Encryption Scheme Data Security (BGN)

A Structure Preserving Database Encryption Scheme Data Security (BGN)

Data security is becoming one of the most important issues of the new information driven
applications. It is now essential to secure "Data in Motion" - the data while it moves across the
network and securing the data at the edge points ("Data in Rest"). Even it is reasonable to think that
the problem is with "Data in Motion" - Most attacks are targeted at "Data at Rest" and by intruders
with in the organization (like DBA or data owner/client with in the organization).
Goals and Benefits
Data encryption at table, row and cell level
Each cell is encrypted with its unique cell coordinates but only the data of interest needs to be
decrypted while performing a query
Substitution and statistical attacks are eliminated
Each index value is the result of encrypting a plaintext value in the database with its row-id. This
ensures that the index does not reveal the statistics or order of the database values and the new
database indexing scheme preserves the index structure
The new schemes do not impose any changes on the database structure
Potential Commercial Uses and Strategic Partners
This technology will provide a much better security for all databases based application mainly for
"Data in Rest" needs and helps to protect in house as well as external intruders.
Potential Strategic partners are - Oracle, Microsoft, IBM and others.
Development Stage and Development Status Summary
The Preserving Database Encryption Scheme was successfully tested on Oracle 9i database and
shows a much better security for both "Data in Rest" and "Data in Motion" needs. The next steps in
the development is Implementing the new schemes on other Databases (such as Microsoft MS-SQL
and others), perform additional Performance assessment and Key management and expanding the
technology to Bi-temporal databases.

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