时间门限代理签名方案

Time-Bound Threshold Proxy Signature Scheme

摘要: 随着当前加密货币行业的发展，安全数字签名的必要性也成比例地增长。数字签名能够有效提高工作效率，降低交易成本，提升信息安全，因此在全球范围内得到了广泛的应用。数字签名是一种基于公钥密码学的技术，用于确认数字信息的完整性、身份认证和防伪造性。传统数字签名技术在应对多方协作、时间敏感任务等复杂场景时存在显著局限性，难以满足现代分布式系统对安全性、效率与灵活性的高要求。为此，研究者结合定时密码学与分布式签名技术，提出了基于时间锁谜题的门限代理签名方案。

Abstract: With the current development of the cryptocurrency industry, the necessity of secure digital signatures has grown proportionally. Digital signatures can effectively enhance work efficiency, reduce transaction costs, and improve information security, thus being widely applied globally. Digital signatures are a technology based on public key cryptography, used to confirm the integrity of digital information, authenticate identities, and prevent forgery. Traditional digital signature technologies have significant limitations when dealing with complex scenarios such as multi-party collaboration and time-sensitive tasks, and are difficult to meet the high requirements of modern distributed systems for security, efficiency, and flexibility. Therefore, researchers have combined timed cryptography and distributed signature technology to propose a threshold proxy signature scheme based on time-lock puzzles.