《计算机应用研究》|Application Research of Computers

高效抗单点失效的区块链钱包保护方案

Efficient blockchain wallet protection scheme against single point failure

免费全文下载 (已被下载 次)  
获取PDF全文
作者 周健,屈冉,孙丽艳
机构 1.安徽财经大学 管理科学与工程学院,安徽 蚌埠 233030;2.北京邮电大学 计算机学院,北京 100876
统计 摘要被查看 次,已被下载
文章编号 1001-3695(2021)07-005-1947-05
DOI 10.19734/j.issn.1001-3695.2020.11.0400
摘要 利用区块链钱包保存的私钥对交易进行签名是区块链上交易的唯一途径,钱包中存储的私钥一旦丢失或泄露将造成无法挽回的损失。目前主流的钱包管理方案都将钱包集中存储在单个位置或者依赖可信第三方的参与,无法抵抗单点失效。针对区块链的钱包安全问题,提出一个基于无可信中心门限椭圆曲线数字签名的区块链钱包保护方案。该方案在无可信中心参与的情况下由参与者合作生成公私钥和各自的私钥碎片,超过门限阈值的参与者合作才能对交易进行有效签名,可有效抵抗单点攻击,保障钱包安全。经过安全性分析,该方案满足抗伪造性、匿名性、鲁棒性、不可追溯性和不可撤销性。通过效率分析,该方案完成签名仅需常数轮,可在增加较少签名时间的情况下保障区块链钱包安全。
关键词 区块链; 钱包安全; 门限签名; 单点失效
基金项目 国家自然科学基金资助项目(61402001)
安徽省高等学校自然基金资助项目(KJ2019A0657,KJ2020A0013,KJ2018A0441)
安徽财经大学校级项目(ACKY1815ZDB,ACKYB19012,ACKY1721ZDB)
本文URL http://www.arocmag.com/article/01-2021-07-005.html
英文标题 Efficient blockchain wallet protection scheme against single point failure
作者英文名 Zhou Jian, Qu Ran, Sun Liyan
机构英文名 1.College of Management Science & Engineering,Anhui University of Finance & Economics,Bengbu Anhui 233030,China;2.College of Computer,Beijing University of Posts & Telecommunications,Beijing 100876,China
英文摘要 Signing a transaction with the private key stored in the blockchain wallet is the only way to trade on the blockchain, and the private key stored in the wallet can cause irreparable damage if lost or compromised. Current mainstream wallet management schemes centrally store wallets in a single location or rely on the involvement of trusted third parties to withstand a single point of attack. This paper proposed a blockchain wallet protection scheme that based on threshold elliptic digital signature without trusted center. In the absence of trust center participation, it participated cooperate to generate public and private key fragments, and participated that exceed the threshold can cooperate to sign transactions, that could resist single-point attacks effectively, and protect blockchain wallet. With the analysis on security, this scheme meets the security of anti-counterfeiting, anonymity, robust, non-traceability and irrevocability. With the efficiency analysis, the scheme complete signature just needs constant rounds. The proposed scheme can protect the security of blockchain wallet with less signature time increasing.
英文关键词 blockchain; wallet security; threshold signature; single point failure
参考文献 查看稿件参考文献
 
收稿日期 2020/11/26
修回日期 2021/1/2
页码 1947-1951
中图分类号 TP309.7
文献标志码 A