Security

Verifying Search Results Over Web Collections

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Executive Summary

Web searching accounts for one of the most frequently performed computations over the Internet as well as one of the most important applications of outsourced computing, producing results that critically affect users' decision-making behaviors. As such, verifying the integrity of Internet-based searches over vast amounts of web contents is essential. In this paper, the authors provide the first solution to this general security problem. They introduce the concept of an authenticated web crawler and present the design and prototype implementation of this new concept. An authenticated web crawler is a trusted program that computes a special "Signature" S over a collection of web contents it visits.

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