基于身份的R-ate对聚合签名方案  

Identity-based R-ate Pairing Aggregate Signature Scheme

作　　者：敖凌峰 刘星江[1] 王慧[1] 王辉[1] 刘瑶[1] AO Lingfeng;LIU Xingjiang;WANG Hui;WANG Hui;LIU Yao(No.30 Institute of CETC,Chengdu Sichuan 610041,China)

机构地区：[1]中国电子科技集团公司第三十研究所,四川成都610041

出　　处：《通信技术》2024年第5期506-511,共6页Communications Technology

摘　　要：聚合签名是一种密码学技术,其核心思想在于将多个签名者的签名结果聚合成一个新的签名,让多方签署者以群体的形式生成数字签名,以提高签名及签名验证的效率。通过改进Gentry和Ramzan等人的方案,提出了两种基于身份的R-ate对聚合签名方案,分别适用于对相同消息和不同消息的签名值生成、聚合和验证。新的聚合签名方案签名值长度适中,签名值生成及验证过程时间合理,其中签名过程主要涉及两次点乘运算,验证过程主要涉及3次R-ate配对运算。Aggregated signature is a cryptographic technique whose core idea is to aggregate the signature results of multiple signers into a new signature,allowing multiple signers to generate digital signatures in a collective form,improving the efficiency of signing and signature verifying.By improving the schemes of Gentry and Ramzan et al.,this paper proposes two identity-based R-ate pairing aggregate signature schemes,which are suitable for generating,aggregating,and verifying signature values for the same message and different messages,respectively.The new aggregated signature scheme has a moderate length of signature value and reasonable time for signature value generation and verification.The signature process mainly involves two scalar multiplication operations,and the verification process mainly involves three R-ate pairing operations.

关 键 词：基于身份 R-ate配对 BN曲线 聚合签名 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]