BLISS (short for Bimodal Lattice Signature Scheme) is a digital signature scheme proposed by Léo Ducas, Alain Durmus, Tancrède Lepoint and Vadim Lyubashevsky in their 2013 paper "Lattice Signature and Bimodal Gaussians". Compared to other post-quantum schemes, BLISS claims to offer better computational efficiency, smaller signature size, and higher security. A presentation once anticipated that BLISS would become a potential candidate for standardization, however it was not submitted to NIST.