Side-Channel Attacks on BLISS Lattice-Based Signatures
Thomas Espitau, Pierre-Alain Fouque, Benoît Gérard, Mehdi Tibouchi · 2017
In this paper, we investigate the security of the BLISS lattice-based signature scheme, one of the most promising candidates for postquantum-secure signatures, against side-channel attacks. Several works have been devoted to its efficient implementation on various platforms, from desktop CPUs to microcontrollers and FPGAs, and more recent papers have also considered its security against certain types of physical attacks, notably fault injection and cache attacks. We turn to more traditional side-channel analysis, and describe several attacks that can yield a full key recovery.