Public-Key Cryptosystems Based on Composite Degree Residuosity Classes

  • Pascal Paillier
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1592)

Abstract

This paper investigates a novel computational problem, namely the Composite Residuosity Class Problem, and its applications to public-key cryptography. We propose a new trapdoor mechanism and derive from this technique three encryption schemes: a trapdoor permutation and two homomorphic probabilistic encryption schemes computationally comparable to RSA. Our cryptosystems, based on usual modular arithmetics, are provably secure under appropriate assumptions in the standard model.

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Pascal Paillier
    • 1
    • 2
  1. 1.Cryptography DepartmentGEMPLUSIssy-Les-MoulineauxFrance
  2. 2.Computer Science DepartmentENSTParis Cedex 13France

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