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Dynamic multi-keyword fuzzy ranked search with leakage resilience over encrypted cloud data

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The Journal of China Universities of Posts and Telecommunications 2023年第2期30卷 83-95页

作者： zhou yousheng Huang Miao Liu Yuanni Chen Zigang College of Computer Science and Technology Chongqing University of Posts and TelecommunicationsChongqing 400065China School of Cyber Security and Information Law Chongqing University of Posts and telecommunicationsChongqing 400065China

To achieve the confidentiality and retrievability of outsourced data simultaneously,a dynamic multi-keyword fuzzy ranked search scheme(DMFRS)with leakage resilience over encrypted cloud data based on two-level index structure was *** first level index adopts inverted index and orthogonal list,combined with 2-gram and location-sensitive Hashing(LSH)to realize a fuzzy *** second level index achieves user search permission decision and search result ranking by combining coordinate matching with term frequency-inverse document frequency(TF-IDF).A verification token is generated within the results to verify the search results,which prevents the potential malicious tampering by cloud service providers(CSP).The semantic security of DMFRS is proved by the defined leakage function,and the performance is evaluated based on simulation *** analysis results demonstrate that DMFRS gains certain advantages in security and performance against similar schemes,and it meets the needs of storage and privacy-preserving for outsourcing sensitive data.

关键词： secure search multi-keyword fuzzy rank dynamic privacy-preserving

An Anonymous Authentication Scheme with Controllable Linkability for Vehicle Sensor Networks

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Computer Modeling in Engineering & Sciences 2020年第12期125卷 1101-1118页

作者： yousheng zhou Lvjun Chen Xiaofeng Zhao Zheng Yang College of Computer Science and Technology Chongqing University of Posts and TelecommunicationsChongqing400065China School of Cyber Scurity and Information Law Chongqing University of Posts and TelecommunicationsChongqing400065China Singapore University of Technology and Design 8 Somapah Rd487372Singapore

Vehicle sensor networks(VSN)play an increasingly important part in smart city,due to the interconnectivity of the *** similar to other wireless communications,vehicle sensor networks are susceptible to a broad range of *** addition to ensuring security for both data-at-rest and data-in-transit,it is essential to preserve the privacy of data and users in vehicle sensor *** existing authentication schemes for vehicle sensor networks are generally not designed to also preserve the privacy between the user and service provider(e.g.,mining user data to provide personalized services without infringing on user privacy).Controllable linkability can be used to facilitate an involved entity with the right linking key to determine whether two messages were generated by the same sender,while preserving the anonymity of the *** a functionality is very useful to provide personalized ***,in this paper,a threshold authentication scheme with anonymity and controllable linkability for vehicle sensor networks is constructed,and its security is analyzed under the random oracle model.

关键词： Threshold authentication controllable linkabilty group signature vehicle sensor networks

A time-aware searchable encryption scheme for EHRs

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Digital Communications and Networks 2019年第3期5卷 170-175页

作者： yousheng zhou Xiaofeng Zhao Siling Liu Xingwang Long Wenjun Luo College of Computer Science and Technology Chongqing University of Posts and Telecorrununications Chongqing 400065 China School of Cyber Security and Irformation Law Chongqing University of Posts and Telecommunications Chongqing 400065 China

Despite the benefits of EHRs (Electronic Health Records), there is a growing concern over the risks of privacy exposure associated with the technologies of EHR storing and transmission. To deal with this problem, a timeaware searchable encryption with designated server is proposed in this paper. It is based on Boneh's public key encryption with keyword search and Rivest's timed-release cryptology. Our construction has three features: the user cannot issue a keyword search query successfully unless the search falls into the specific time range;only the authorized user can generate a valid trapdoor;only the designated server can execute the search. Applying our scheme in a multi-user environment, the number of the keyword ciphertexts would not increase linearly with the number of the authorized users. The security and performance analysis shows that our proposed scheme is securer and more efficient than the existing similar schemes.

关键词： Searchable encryption Timed-release Designated server Privacy preserving EHRs

Spatial and temporal distribution of Neolithic sites in coastal China:Sea level changes, geomorphic evolution and human adaption

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Science China Earth Sciences 2018年第2期61卷 123-133页

作者： ZHENG HongBo zhou yousheng YANG Qing HU ZhuJun LING GuangJiu ZHANG JuZhong GU ChunGuang WANG YingYing CAO YeTing HUANG XianRong CHENG Yue ZHANG XiaoYu WU WenXiang Research Center for Earth System Science Yunnan University School of Geography Science Nanjing Normal University Department for the History of Science and Scientific Archaeology University of Science and Technology of China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences

The East China coastal plain is one of the most important Neolithic culture areas in China, where rich archaeological sites including those producing the earliest domesticated rice are observed. It is also a place where landscape has experienced dramatic evolution during the Holocene when both sea level and climate changed, such that it is an ideal place for studying human-environment interaction. This study investigated over 2000 sites of pre-history and Shang and zhou Dynasties, with 655 of which being Neolithic ages, by using DEM and GIS methods. The results suggest that the spatial and temporal distribution of Neolithic sites has largely been controlled by landscape evolution(particularly changes in coastal line), which ultimately governed by sea level changes. During early Holocene, Neolithic sites sparsely distributed in the intermountain basins of east Zhejiang Province, far from the influence of ocean. Over the period of 9–7 ka, the coastal plain(including the shelf) was largely submerged,only the feet of low hills to the south and southwest of the study area, and islands protruding the estuary, cradled limited number of settlements with characteristic "maritime components". At about 7 ka, sea level rise decelerated prominently, while sediments supply in the drainage remained high value, the combination of which led to land formation and propagation. Vast space during this period facilitated the growth of settlements in both size and number. In the mean time, however, the coastal plain was vulnerable to extreme environmental events such as storms and flooding owning to its geomorphic nature, which exerted great influence on the rise and fall of Neolithic culture.

关键词： East China coastal plain Neolithic Spatial and temporal distribution of Neolithic sites Sea level change Geomorphic evolution

基于区块链的细粒度云数据安全存储与删除方案

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电子与信息学报 2021年第7期43卷 1856-1863页

作者：周由胜陈律君重庆邮电大学计算机科学与技术学院重庆400065 重庆邮电大学网络空间安全与信息法学院重庆400065

在基于云计算的存储与删除服务中,由于外包数据所有权和管理分离,现有的逻辑删除机制使云上的数据很容易暴露给未经授权的用户,甚至云服务器可能未遵循用户要求删除相应数据。为此,该文提出一种细粒度的安全云端数据存储与删除方案。基... 详细信息

在基于云计算的存储与删除服务中,由于外包数据所有权和管理分离,现有的逻辑删除机制使云上的数据很容易暴露给未经授权的用户,甚至云服务器可能未遵循用户要求删除相应数据。为此,该文提出一种细粒度的安全云端数据存储与删除方案。基于椭圆曲线构造了基于密文策略的属性基加密以实现外包数据细粒度访问控制,应用区块链实现可公开验证的安全数据删除。该文方案具有责任可追踪性以及两方删除与可验证性等特性。理论分析与实验结果表明该文方案具有较好的安全性和较高的性能,能够满足云数据共享与安全删除的需求。

关键词：云存储安全删除属性加密区块链公开验证

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面向雾增强型工业物联网的多维安全查询方案

通信学报 2020年第8期41卷 175-186页

作者：周由胜谭畅唐飞重庆邮电大学计算机科学与技术学院重庆400065 重庆邮电大学网络空间安全与信息法学院重庆400065

针对现有范围查询方案进行多维数据查询时缺乏隐私保护的问题,提出了一种带有隐私保护特性的面向雾增强型工业物联网多维安全查询方案。该方案首先将用户待查询的多个维度区间映射成一个查询矩阵;然后,构造辅助向量对查询矩阵进行分解,... 详细信息

针对现有范围查询方案进行多维数据查询时缺乏隐私保护的问题,提出了一种带有隐私保护特性的面向雾增强型工业物联网多维安全查询方案。该方案首先将用户待查询的多个维度区间映射成一个查询矩阵;然后,构造辅助向量对查询矩阵进行分解,利用BGN同态加密对辅助向量进行处理形成查询陷门;最后,物联网设备终端利用同态特性将传感数据与查询陷门进行匹配。特殊辅助向量有效降低了方案空间复杂度,同态加密的自盲性保证了传感数据机密性和用户查询模式的隐私。仿真实验结果表明,所提方案的计算开销和通信开销较低。

关键词：雾增强工业物联网安全查询隐私保护 BGN同态加密

Kinetics and Mechanism of Hydration of Acrylic Acid over Ion-exchanged Resin:Experimental Exploration and DFT Calculation

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China Petroleum Processing & Petrochemical Technology 2024年第3期26卷 109-121页

作者： Yang Fengjing Luo Nianjun Chen Yuxiang Liu Chuanlei Wang Hao Gao Weikang Guo Guanchu Jiang Hao Zhao Qiyue zhou yousheng Wang Yifan Li Peicheng Shen Benxian Sun Hui State Key Laboratory of Green Chemical Engineering and Industrial Catalysis East China University of Science and TechnologyShanghai 200237China School of Chemical Engineering East China University of Science and TechnologyShanghai 200237China International Joint Research Center of Green Energy Chemical Engineering East China University of Science and TechnologyShanghai 200237China

Liquid-phase acrylic acid hydration over solid-phase catalysts is a key reaction for the industrial productionof 3-hydroxypropionic acid. However, the relevant literature primarily focuses on the experimental aspects of catalystscreening and exploring reaction conditions, with few accurate descriptions of the reaction kinetics and determination ofthe reaction mechanism. Here, we combined kinetics experiments and theoretical calculations to elucidate the kinetics andmechanism of acrylic acid hydration on a resin catalyst. The pseudo-homogeneous model, and Langmuir-Hinshelwood-Haugen-Watson and Elie-Riedel (ER) heterogeneous models were used to explain the experimental kinetics data. TheER model can explain the experimental data very well, suggesting strong adsorption of acrylic acid on the surface of theresin catalyst. Furthermore, density functional theory calculations show that the hydration follows a stepwise, rather than aconcerted, reaction pathway. The present study provides theoretical insights into the reaction mechanism and kinetics, fillingthe gap in our understanding of the reaction on a fundamental level.

关键词： acrylic acid kinetics resin catalyst DFT method

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一种安全的RFID委托认证方案

计算机工程 2017年第10期43卷 126-133页

作者：周由胜李缘重庆邮电大学计算机科学与技术学院重庆400065

针对智能家居中的事务委托场景,提出一种安全的委托认证方案,基于切比雪夫混沌映射分别构造适用于通用场景及委托场景的认证协议。考虑到切比雪夫映射的半群特性,所有标签与门禁阅读器共享唯一的认证服务器公钥,即可实现各实体之间的相... 详细信息

针对智能家居中的事务委托场景,提出一种安全的委托认证方案,基于切比雪夫混沌映射分别构造适用于通用场景及委托场景的认证协议。考虑到切比雪夫映射的半群特性,所有标签与门禁阅读器共享唯一的认证服务器公钥,即可实现各实体之间的相互认证,解决了公钥密码认证方案中密钥管理繁琐的难题。利用BAN逻辑对所提方案正确性进行验证,并分析方案的安全性,结果表明,该方案安全可行,可以抗重放攻击和假冒攻击。

关键词：射频识别混沌映射认证委托 BAN逻辑

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一个群组验证的多策略门限数字签名方案

计算机研究与发展 2012年第3期49卷 499-505页

作者：王锋周由胜谷利泽杨义先德州学院数学系山东德州253023 重庆邮电大学计算机科学与技术学院重庆400065 北京邮电大学灾备技术国家工程实验室北京100876

多策略门限数字签名方案是数字签名中比较实用的一种签名方式,它能根据所签文件的安全等级选择不同的门限值群组成员集合完成签名.目前的多策略门限数字签名方案无法解决群组验证的问题.针对这一问题,提出了一个门限群组验证的多策略门... 详细信息

多策略门限数字签名方案是数字签名中比较实用的一种签名方式,它能根据所签文件的安全等级选择不同的门限值群组成员集合完成签名.目前的多策略门限数字签名方案无法解决群组验证的问题.针对这一问题,提出了一个门限群组验证的多策略门限数字签名方案.该方案具有多策略门限签名方案的特性,能够实现门限群组验证并能够追踪签名集合;在验证过程中,能够根据文件的安全等级选择不同门限值的群组验证成员集合来验证签名;签名群组和验证群组能够实现角色互换,从而实现双向签名.经过安全分析,该方案是安全的、实用的.

关键词：门限签名多策略群组验证可追踪性安全等级