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Secure Multi-party Computation Using Virtual Parties for Computation on Encrypted Data

  • Rohit Pathak
  • Satyadhar Joshi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5576)

Abstract

In this paper, we propose a new Virtual Party Protocol (VPP) protocol for Secure Multi-Party Computation (SMC). There are many computations and surveys which involve confidential data from many parties or organizations. As the concerned data is property of the organization or the party, preservation and security of this data is of prime importance for such type of computations. Although the computation requires data from all the parties, but none of the associated parties would want to reveal their data to the other parties. We have proposed a new protocol to perform computation on encrypted data. The data is encrypted in a manner that it does not affect the result of the computation. It uses modifier tokens which are distributed among virtual parties, and finally used in the computation. The computation function uses the acquired data and modifier tokens to compute right result from the encrypted data. Thus without revealing the data, right result can be computed and privacy of the parties is maintained. We have given a probabilistic security analysis and have also shown how we can achieve zero hacking security with proper configuration.

Keywords

Secure Multi-party Computation (SMC) Information Security Privacy Protocol 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Rohit Pathak
    • 1
  • Satyadhar Joshi
    • 2
  1. 1.Acropolis Inst. Of Technology & ResearchIndia
  2. 2.Shri Vaishnav Inst. Of Technology & ScienceIndoreIndia

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