Welcome to the resource topic for 2016/030
Title:
An Efficient Lattice-Based Signature Scheme with Provably Secure Instantiation
Authors: Sedat Akleylek, Nina Bindel, Johannes Buchmann, Juliane Krämer, Giorgia Azzurra Marson
Abstract:In view of the expected progress in cryptanalysis it is important to find alternatives for currently used signature schemes such as RSA and ECDSA. The most promising lattice-based signature schemes to replace these schemes are BLISS (CRYPTO 2013) and GLP (CHES 2012). Both come with a security reduction from a lattice problem and have high performance. However, their parameters are not chosen according to their provided security reduction, i.e., the instantiation is not provably secure. In this paper, we present the first lattice-based signature scheme with good performance when provably secure instantiated. To this end, we provide a tight security reduction for the new scheme from the ring learning with errors problem which allows for provably secure and efficient instantiations. We present experimental results obtained from a software implementation of our scheme. They show that our scheme, when provably secure instantiated, performs comparably with BLISS and the GLP scheme.
ePrint: https://eprint.iacr.org/2016/030
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