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  1. No Access

    Chapter and Conference Paper

    A Refined Hardness Estimation of LWE in Two-Step Mode

    Recently, researchers have proposed many LWE estimators, such as lattice-estimator (Albrecht et al, Asiacrypt 2017) and leaky-LWE-Estimator (Dachman-Soled et al, Crypto 2020), while the latter has already been...

    Wenwen **a, Leizhang Wang, Geng Wang, Dawu Gu… in Public-Key Cryptography – PKC 2024 (2024)

  2. No Access

    Chapter and Conference Paper

    Analyzing Pump and Jump BKZ Algorithm Using Dynamical Systems

    The analysis of the reduction effort of the lattice reduction algorithm is important in estimating the hardness of lattice-based cryptography schemes. Recently many lattice challenge records have been cracked ...

    Leizhang Wang in Post-Quantum Cryptography (2024)

  3. No Access

    Chapter and Conference Paper

    Implementing Attacks on the Approximate Greatest Common Divisor Problem

    The security of many fully homomorphic encryption (FHE) schemes is guaranteed by the difficulty of the approximate greatest common divisor (AGCD) problem. Therefore, the study of AGCD problem is of great sign...

    Leizhang Wang, Quanbo Qu, Tuoyan Li, Yange Chen in Frontiers in Cyber Security (2019)