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Computer Security — ESORICS 2002: 7th European Symposium on by Michael Backes, Birgit Pfitzmann (auth.), Dieter Gollmann,

By Michael Backes, Birgit Pfitzmann (auth.), Dieter Gollmann, Günther Karjoth, Michael Waidner (eds.)

ESORICS, the ecu Symposium on study in laptop protection, is the prime research-oriented convention at the thought and perform of machine safety in Europe. It occurs each years, at a number of destinations all through Europe, and is coordinated via an self sufficient steerage Committee. ESORICS 2002 used to be together prepared by way of the Swiss Federal Institute of Te- nology (ETH) and the IBM Zurich study Laboratory, and came about in Zurich, Switzerland, October 14-16, 2002. this system committee obtained eighty three submissions, originating from 22 co- attempts. For fanatics of statistics: fifty five submissions got here from nations in Europe, the center East, or Africa, sixteen got here from Asia, and 12from North the United States. The prime international locations have been united states (11 submissions), Germany (9), France (7), Italy (7), Japan (6), and united kingdom (6). every one submission was once reviewed via a minimum of 3 p- gram committee individuals or different specialists. every one submission coauthored via a software committee member acquired extra stories. this system c- mittee chair and cochair weren't allowed to put up papers. The ?nal number of papers was once made at a application committee assembly and ended in sixteen authorized papers. compared, ESORICS 2000 obtained seventy five submissions and authorised 19 of them. this system re?ects the total diversity of safety learn: we authorized papers on entry keep watch over, authentication, cryptography, database protection, formal equipment, intrusion detection, cellular code defense, privateness, safe undefined, and safe protocols. We gratefully recognize all authors who submitted papers for his or her e?orts in preserving the criteria of this conference.

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Extra resources for Computer Security — ESORICS 2002: 7th European Symposium on Research in Computer Security Zurich, Switzerland, October 14–16, 2002 Proceedings

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Information flow in nondeterministic systems. IEEE Symposium on Security and Privacy, IEEE Computer Society Press, Los Alamitos 1990, 144-161. 1 [21] A. C. Yao. Protocols for secure computations. 23rd Symposium on Foundations of Computer Science (FOCS) 1982, IEEE Computer Society, 1982, 160-164. 11 [22] A. Zakinthinos and E. S. Lee. A general theory of security properties. IEEE Symposium on Security and Privacy, IEEE Computer Society Press, Washington 1997, 94-102. jp Abstract. In this paper, we introduce a bit-slice approach for auctions and present a more efficient circuit than the normal approach for the highest-price auction.

The aim of the protocol is for players to compute f (B1 , . . , Bn ) without revealing any additional information. It goes as follows. Input stage: Each Pi computes ciphertexts of the bits of Bi and broadcasts them. She proves that each ciphertext represents 0 or 1 in zero-knowledge by using the technique of [11]. Mix and Match stage: The players blindly evaluates each gate Gj in order. Output stage: After evaluating the last gate GN , the players obtain oN , a ciphertext encrypting f (B1 , . .

And an initial user log log 0 . The inputs to any such function are “admissible” pairs (db, policy ) where db is an instance of the information system, and policy is an instance of a suitably formalized confidentiality policy. The admissibility of an argument pair (db, policy ) is determined by some formal precondition associated with the function. Throughout the paper we suppose that for each function, the policies in its admissible pairs all belong to exactly one of the policy models. The function returns an answer sequence to the user, and updates the user log as a side effect.

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