Anonymity without 'Cryptography'

  • Authors:
  • Dahlia Malkhi;Elan Pavlov

  • Affiliations:
  • -;-

  • Venue:
  • FC '01 Proceedings of the 5th International Conference on Financial Cryptography
  • Year:
  • 2002

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Abstract

This paper presents a technique for providing users with anonymity tools without using conventional cryptography.Th e method, AnonymousMulti Party Computation (AMPC), provides a generic building block for providing electronic anonymity in various applications, e.g., electronic voting and oblivious transfer.I t uses a variation of Chaum's mix-nets that utilizes value-splitting to hide inputs, and hence requires no "conditionally-secure" operations of its users.T his is achieved under the assumption that there are secure channels between good participants, and under a suitable resilience threshold assumption that, in our worst adversarial scenario, is a square-root of the system.