Lattice-based, more general anti-leakage model and its application in decentralization

ePrint Report: Lattice-based, more general anti-leakage model and its application in decentralization

Dai xiaokang, Jingwei Chen, Wenyuan Wu, Yong Feng

For standard \LWE samples $(\mathbf{A},\mathbf{b = sA + e})$, $\mathbf{A}$ is typically uniformly over $\mathbb{Z}_q^{n \times m}$, and under the \LWE assumption, the conditional distribution of $\mathbf{s}$ given $\mathbf{b}$ and $\mathbf{s}$ should be consistent. However, when $\mathbf{A}$ is chosen by an adversary, the gap between the two may be larger. In this work, we are mainly interested in quantifying $\tilde{H}_\infty(\mathbf{s}|\mathbf{sA …

application chen dai decentralization distribution eprint report general report standard under