密码学报（中英文）2026，Vol.13Issue(2)：379-390,12.DOI:10.13868/j.cnki.jcr.000856
随机化代理签名及其在区块链中的应用
Randomizable Proxy Signature and Its Application in Blockchain
摘要
Abstract
This study proposes a randomizable proxy signature scheme,which is a new primitive,and proves that our proxy signature scheme is weakly secure,relying on the security of the PS signature scheme in the generic group model.A randomizable proxy signature scheme allows an original signer to delegate his signing rights to a proxy signer,and then anyone can generate another valid proxy signature on the same message.Therefore,our signature scheme provides unlinkability,making it a practical tool for privacy preservation.Our construction,built upon groups with a Type 3 bilinear pairing,is efficient and results in a small signature size.These features make the randomizable proxy signature primitive particularly useful for building privacy-preserving protocols,such as blockchain,e-commerce,and cloud computing.关键词
代理签名/可随机化签名/区块链/隐私保护Key words
proxy signatures/randomizable signatures/blockchain/privacy-preserving分类
信息技术与安全科学引用本文复制引用
林群,林齐平..随机化代理签名及其在区块链中的应用[J].密码学报（中英文）,2026,13(2):379-390,12.基金项目
Chaozhou Science and Technology Plan(2025ZC29) （2025ZC29）
Key Science Program of Hanshan Normal Uni-versity(XN202028) （XN202028）
