An adaptively secure mix-net without erasures

  • Authors:
  • Douglas Wikström;Jens Groth

  • Affiliations:
  • Department of Computer Science, ETH Zürich;UCLA, Computer Science Department

  • Venue:
  • ICALP'06 Proceedings of the 33rd international conference on Automata, Languages and Programming - Volume Part II
  • Year:
  • 2006

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Abstract

We construct the first mix-net that is secure against adaptive adversaries corrupting any minority of the mix-servers and any set of senders. The mix-net is based on the Paillier cryptosystem and analyzed in the universal composability model without erasures under the decisional composite residuosity assumption, the strong RSA-assumption, and the discrete logarithm assumption. We assume the existence of ideal functionalities for a bulletin board, key generation, and coin-flipping