通信学报2024，Vol.45Issue(12)：83-94,12.DOI:10.11959/j.issn.1000-436x.2024272
基于秘密共享的匿名举报者回复方案
Anonymous whistleblowers reply scheme based on secret sharing
摘要
Abstract
Existing anonymous communication systems that resisted traffic analysis could hide the identities of the com-municating parties from the attacker.However,the identities of the communicating parties couldn't be hidden from each other,and thus these systems did not apply to the scenario of anonymous whistleblowing and replying,where it was nec-essary to protect the identity of the whistleblower.To address this issue,an efficient anonymous whistleblower response scheme was proposed.With the technology of distributed point functions and secret sharing,the message was stored in two separate mailbox databases of non-colluding servers,so that the identity of the data receiver was hidden from the at-tacker.With the technology of secret sharing and encryption,the email address of the whistleblower was hidden,so that the receiving organization could reply without learning the whistleblower's identity.The security analysis showed that the proposed scheme enabled the anonymity of both data receivers and whistleblowers at the same time.The experimen-tal results show that compared to the Express scheme,the proposed scheme reduces the computational complexity during a reply to O(1)from O(logN),resulting in a 60%reduction in computational overhead for the receiving organization and a 50%reduction for the server.关键词
秘密共享/分布式点函数/匿名举报/身份隐私Key words
secret sharing/distributed point function/anonymous whistleblowing/identity privacy分类
信息技术与安全科学引用本文复制引用
何琨,黄雅静,杜瑞颖,石闽,李思勤,陈晶..基于秘密共享的匿名举报者回复方案[J].通信学报,2024,45(12):83-94,12.基金项目
国家重点研发计划基金资助项目(No.2022YFB3103300) （No.2022YFB3103300）
国家自然科学基金资助项目(No.62172303) （No.62172303）
湖北省重点研发计划基金资助项目(No.2022BAA039) （No.2022BAA039）
山东省重点研发计划基金资助项目(No.2022CXPT055) The National Key Research and Development Program of China(No.2022YFB3103300),The National Natural Science Foundation of China(No.62172303),The Key Research and Development Program of Hubei Province(No.2022BAA039),The Key Research and Development Program of Shandong Province(No.2022CXPT055) （No.2022CXPT055）
