Chi Zhang

collaborators

4 papers

math.NT2025

Notes on the LVP and CVP in $p$ -adic Fields

Chi Zhang, Mingqian Yao

This paper explores computational methods for solving the Longest Vector Problem (LVP) and Closest Vector Problem (CVP) in $p$ -adic fields. Leveraging the non-Archimedean property…

math.RA2024

Additive Biderivations of Incidence Algebras

Zhipeng Guan, Chi Zhang

Let $R$ be a commutative ring with unity, and let $P$ be a locally finite poset. The aim of the paper is to provide an explicit description of the additive biderivations…

math.NT2024

An Explicit Construction of Orthogonal Basis in $p$ -adic Fields

Chi Zhang, Yingpu Deng

In 2021, the $p$ -adic signature scheme and public-key encryption cryptosystem were introduced. These schemes have good efficiency but are shown to be not secure. The attack succeed…

cs.CR2024

An Attack on $p$ -adic Lattice Public-key Cryptosystems and Signature Schemes

Chi Zhang

Lattices have many significant applications in cryptography. In 2021, the $p$ -adic signature scheme and public-key encryption cryptosystem were introduced. They are based on the Lo…

Notes on the LVP and CVP in p-adic Fields

Additive Biderivations of Incidence Algebras

An Explicit Construction of Orthogonal Basis in p-adic Fields

An Attack on p-adic Lattice Public-key Cryptosystems and Signature Schemes

Notes on the LVP and CVP in $p$ -adic Fields

An Explicit Construction of Orthogonal Basis in $p$ -adic Fields

An Attack on $p$ -adic Lattice Public-key Cryptosystems and Signature Schemes