Penn State researchers have developed software that more quickly and efficiently ensures that databases dont release unauthorized information.
The software, QFilter, "sits" between users and databases and filters or culls out unauthorized requests for data before a database responds to a query. "We have shifted the thinking from data filtering to query filtering," said Dongwon Lee, assistant professor in the School of Information Sciences and Technology (IST). "This is a practical solution to the ongoing problem of database access controls."
Businesses and organizations know a critical security guarantee for their databases is that only authorized users can access approved data. That security is managed currently through access control-modules built separately into individual databases. QFilter can implement database security without those modules. This means it can be used with off-the-shelf databases and without requiring substantial changes to existing databases, the researchers said. "That difference not only makes the security check of QFilter very practical, but it also significantly improves query-response time by rejecting unauthorized requests early on," Lee said.
Margaret Hopkins | EurekAlert!
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