区块链交易无中心门限签名方案  

DECENTRALIZED THRESHOLD SIGNATURE SCHEME IN BLOCKCHAIN TRANSACTIONS

作　　者：刘新[1] 胡翔瑜 徐刚 陈秀波[3] Liu Xin;Hu Xiangyu;Xu Gang;Chen Xiubo(School of Information Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,Inner Mongolia,China;College of Information,North China University of Technology,Beijing 100144,China;Information Security Center,State Key Laboratory of Network and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014010 [2]北方工业大学信息学院,北京100144 [3]北京邮电大学网络与交换技术国家重点实验室信息安全中心,北京100876

出　　处：《计算机应用与软件》2025年第4期345-352,397,共9页Computer Applications and Software

基　　金：内蒙古自然科学基金面上项目(2021MS06006);包头市昆都仑区科技计划项目(YF2020013);内蒙古纪检监察大数据实验室开放项目基金(IMDBD2020020);内蒙古科技重大专项(2019ZD025)。

摘　　要：区块链钱包中的私钥是比特币转账交易时的唯一凭证,若私钥由一人掌握,会存在私钥丢失、泄漏等问题。针对这个问题设计了多人管理区块链钱包方案。该方案采用椭圆曲线签名算法和门限方案,设计了无中心多人区块链门限签名方案。该方案可以防止单节点私钥丢失或缺少个别参与者签名的问题,适用于多人合作管理钱包等应用场景。最后对该方案进行正确性分析和安全性证明,同时评估了该方案下区块链的效率和交易所需时间。The private key in blockchain wallet is the only voucher in bitcoin transfer transaction.If the private key is held by one person,there will be some problems such as loss and leakage of the private key.To solve this problem,a multi-party blockchain wallet management scheme is designed.The elliptic curve signature algorithm and threshold scheme were adopted,and a decentralized threshold signature scheme for multi-party blockchain was designed.The scheme could prevent the loss of the private key of a single node or the lack of signatures of individual participants,and was suitable for the application scenarios such as wallet management by many people.The correctness and security of the scheme were proved,and the efficiency of blockchain and the time required for transaction under the scheme were evaluated.

关 键 词：区块链 私钥管理 门限签名 比特币交易 去中心化 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]