适用于区块链溯源场景的门限签名方案  

Threshold signature scheme for blockchain traceability scenario

作　　者：李莉[1] 李涛 杜慧娜 LI Li;LI Tao;DU Hui-na(School of Information and Computer Engineering,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学信息与计算机工程学院,黑龙江哈尔滨150040

出　　处：《计算机工程与设计》2023年第9期2586-2592,共7页Computer Engineering and Design

摘　　要：针对区块链溯源应用中ECDSA签名算法和群签名等签名算法产生的依赖可信中心和签名效率低等问题,提出一种适用于区块链溯源场景的动态Schnorr门限签名方案。该方案基于Pedersen可验证秘密共享方案,无需第三方可信中心。由签名成员之间相互验证并生成子密钥,实现完全去中心化;使用Schnorr签名方案缩短签名时间和签名验证时间;根据签名成员具有变更性的特点建立成员加入和成员退出机制。实验结果表明,所提方案计算量较小,缩短了门限签名的签名时间和签名验证时间。To address the problems of relying on a trusted center and low signature efficiency caused by signature algorithms such as the ECDSA signature algorithm and group signature in blockchain traceability application,a dynamic Schnorr threshold signature scheme suitable for blockchain traceability scenario was proposed.The scheme was based on Pedersen’s verifiable secret sharing scheme with no need of a third-party trusted center.The signature members verified each other and generated subkeys to achieve complete decentralization.The Schnorr signature scheme was used to shorten the signature time and signature verification time.According to the changing characteristics of signature members,a member joining and member exiting mechanism was established.Experimental results show that the proposed scheme has less computation and shortens the signature time and signature verification time of threshold signature.

关 键 词：区块链 溯源 去中心化 门限签名 秘密共享 签名验证 签名时间 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]