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Exposing Private Information by Timing Web Applications

PublisherInternational World Wide Web Conference Committee
Format180.5KB PDFDate added12 May 2006
Topics Java, Security Management, Application Development
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The paper discusses the time the web sites take to respond to HTTP requests can leak private information, using two different types of attacks. The first, direct timing, directly measures response times from a web site to expose private information such as validity of an username at a secured site or the number of private photos in a publicly viewable gallery. The second, cross-site timing, enables a malicious web site to obtain information from the user's perspective at another site. The paper explains in detail how and why these attacks work, and discuss methods for writing web application code that resists these attacks.

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