Parallel Key-Insulated Aggregate Signature

ZHAO Hui-yan; YU Jia; LI Meng; XUN Tian-tian; ZHAO Hua-wei; SHU Ming-lei

doi:10.3969/j.issn.0372-2112.2015.05.030

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Parallel Key-Insulated Aggregate Signature

更新时间：2025-07-16

- Parallel Key-Insulated Aggregate Signature
- Acta Electronica Sinica Vol. 43, Issue 5, Pages: 1035-1040(2015)
- 作者机构：
  
  1. 青岛大学信息工程学院,山东,青岛,266071
  2. 山东省科学院山东省计算机网络重点实验室,山东,济南,250014
  3. 青岛大学信息工程学院,山东,青岛,266071
  4. 山东省科学院山东省计算机网络重点实验室,山东,济南,250014
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61272425, No.61202475, No.61402245);Qingdao Science and Technology Project of Shandong Province (No.12-1-4-2 (16)-jch, No.13-1-4-151-jch);Open Project of Shandong Key Laboratory of Computer Network (No.SDKLCN-2013-03);Huawei Technology Fund (No.YB2013120027)
- DOI：10.3969/j.issn.0372-2112.2015.05.030
  CLC： TP309
- Published：2015
- 稿件说明：
移动端阅览
ZHAO Hui-yan, YU Jia, LI Meng, et al. Parallel Key-Insulated Aggregate Signature[J]. Acta Electronica Sinica, 2015, 43(5): 1035-1040.
DOI：

ZHAO Hui-yan, YU Jia, LI Meng, et al. Parallel Key-Insulated Aggregate Signature[J]. Acta Electronica Sinica, 2015, 43(5): 1035-1040. DOI： 10.3969/j.issn.0372-2112.2015.05.030.

摘要

为了应对聚合签名中的密钥泄露问题

将并行密钥隔离机制扩展到聚合签名系统中

给出了并行密钥隔离聚合签名的概念.在给出的形式化定义和安全模型的基础上

提出了第一个并行密钥隔离聚合签名方案

并在随机预言模型下证明了方案的安全性.所提出的方案满足密钥隔离性、强密钥隔离性和安全密钥更新等性质

特别在签名验证方面具有较高的效率.引入的两个协助器交替帮助用户进行临时私钥更新

增强了系统防御密钥泄露的能力.

Abstract

To deal with the key exposure problem in aggregate signature

this paper extends the parallel key-insulated mechanism to aggregate signatures and introduces the primitive of parallel key-insulated aggregate signature.On the basis of formalized definitions and security notions

we propose the first parallel key-insulated aggregate signature scheme and demonstrate that the proposed scheme is provably secure in the random oracle model.The proposed scheme satisfies key-insulated security

strong key-insulated security and secure key-updates.Especially our scheme is high-efficiency in verifications.Two introduced helpers can alternately help users to update the private keys

which strengthen the system's ability to resist the key compromise.

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