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Published in:
2005 | OriginalPaper | Chapter
Private Searching on Streaming Data
Authors : Rafail Ostrovsky, William E. Skeith III
Published in: Advances in Cryptology – CRYPTO 2005
Publisher: Springer Berlin Heidelberg
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In this paper, we consider the problem of private searching on streaming data. We show that in this model we can efficiently implement searching for documents under a secret criteria (such as presence or absence of a hidden combination of hidden keywords) under various cryptographic assumptions. Our results can be viewed in a variety of ways: as a generalization of the notion of a Private Information Retrieval (to the more general queries and to a streaming environment as well as to public-key program obfuscation); as positive results on privacy-preserving datamining; and as a delegation of hidden program computation to other machines.