1st International ICST Workshop on Quantum and Classical Information Security

Research Article

Improvement of Lattice-Based Cryptography Using CRT

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  • @INPROCEEDINGS{10.1007/978-3-642-11731-2_34,
        author={Thomas Plantard and Mike Rose and Willy Susilo},
        title={Improvement of Lattice-Based Cryptography Using CRT},
        proceedings={1st International ICST Workshop on Quantum and Classical Information Security},
        proceedings_a={QCIS},
        year={2012},
        month={10},
        keywords={},
        doi={10.1007/978-3-642-11731-2_34}
    }
    
  • Thomas Plantard
    Mike Rose
    Willy Susilo
    Year: 2012
    Improvement of Lattice-Based Cryptography Using CRT
    QCIS
    Springer
    DOI: 10.1007/978-3-642-11731-2_34
Thomas Plantard1,*, Mike Rose1,*, Willy Susilo1,*
  • 1: University of Wollongong
*Contact email: thomaspl@uow.edu.au, mrose@uow.edu.au, wsusilo@uow.edu.au

Abstract

In this paper, we first critically analyze two existing lattice-based cryptosystems, namely GGH and Micciancio, and identify their drawbacks. Then, we introduce a method for improving the implementation of GGH using the Chinese Remainder Theorem (CRT). Furthermore, we also propose another cryptosystem optimized for CRT, drawing on the strengths of both cryptosystems. We provide a fair comparison between our scheme and the existing ones.