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Faster SeaSign signatures through improved rejection sampling
Isogeny-based cryptography signatures SeaSign
2018/11/20
We speed up the isogeny-based ``SeaSign'' signature scheme recently proposed by De Feo and Galbraith. The core idea in SeaSign is to apply the ``Fiat–Shamir with aborts'' transform to the parallel rep...
On Rejection Sampling Algorithms for Centered Discrete Gaussian Distribution over Integers
lattice-based cryptography discrete Gaussian sampling rejection sampling
2017/10/12
Lattice-based cryptography has been accepted as a promising candidate for public key cryptography in the age of quantum computing. Discrete Gaussian sampling is one of fundamental operations in many l...