摘要: 基于传统数学假设的秘密共享算法难以有效抵御量子算法的攻击。为此,提出一种基于格的门限秘密共享算法。分析秘密共享基本步骤,包括公钥生成、份额生成以及秘密重构。论述基于格的门限秘密共享算法,该算法可被规约为格上的最近向量问题,并对其安全性进行分析。推算结果证明了该算法具有正确性和安全性。
关键词:
格,
最近向量问题,
门限,
秘密共享,
分布式加密系统
Abstract: The secret sharing algorithm based on the traditional mathematical assumption is difficult to resist the attack of the quantum algorithm.Therefore,a lattice-based threshold secret sharing algorithm is proposed.The basic process of the secret sharing strategy is analyzed,which is divided into public key generation,share generation and secret reconstruction.The threshold secret sharing algorithm based on lattice is discussed.The algorithm can be reduced to the closest vector problem,and its security is analyzed.Calculation results prove that the algorithm is correct and safe.
Key words:
lattice,
closest vector problem,
threshold,
secret sharing,
distributed encryption system
中图分类号:
张红军,刘珂,牟占生. 基于格的门限秘密共享算法[J]. 计算机工程.
ZHANG Hongjun,LIU Ke,MOU Zhansheng. Lattice-based Threshold Secret Sharing Algorithm[J]. Computer Engineering.