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A potential game-based outsourcing computation framework for multiple calculators

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Digital Communications and Networks 2022年第5期8卷 654-663页

作者： Duo Zhang youliang tian Linjie Wang State Key Laboratory of Public Big Data College of Computer Science and TechnologyGuizhou UniversityGuiyang550025China School of Mathematics and Statistics Guizhou UniversityGuiyang550025China

Outsourcing computation enables a computationally weak client to outsource the computation of a function f to a more powerful but untrusted *** traditional outsourcing computation model forbids communication between players,but it has little *** on the game theory,this paper establishes an outsourcing computation model which is more in line with the actual ***,we construct a structural mapping relationship between security outsourcing computation and the optimization ***,by designing the individual potential function and the global potential function,the individual goal is consistent with the global goal to ensure the correctness of the calculation ***,in the information exchange environment between calculators,we construct a Zero-determinant strategy to ensure that the calculator chooses the strategy according to the predetermined target.

关键词： Outsourcing computation Game theory Potential function Zero-determinant strategy Information exchange

Achieving reliable and anti-collusive outsourcing computation and verification based on blockchain in 5G-enabled IoT

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Digital Communications and Networks 2022年第5期8卷 644-653页

作者： Linjie Wang youliang tian Jinbo Xiong School of Data Science Tongren UniversityTongren554300China State Key Laboratory of Public Big Data College of Computer Science and Technology Guizhou UniversityGuiyang550025China Fujian Provincial Key Laboratory of Network Security and Cryptology College of Computer and Cyber SecurityFujian Normal UniversityFuzhou350117China

Widespread applications of 5G technology have prompted the outsourcing of computation dominated by the Internet of Things(IoT)cloud to improve transmission efficiency,which has created a novel paradigm for improving the speed of common connected objects in ***,although it makes it easier for ubiquitous resource-constrained equipment that outsources computing tasks to achieve high-speed transmission services,security concerns,such as a lack of reliability and collusion attacks,still exist in the outsourcing *** this paper,we propose a reliable,anti-collusion outsourcing computation and verification protocol,which uses distributed storage solutions in response to the issue of centralized storage,leverages homomorphic encryption to deal with outsourcing computation and ensures data ***,we embed outsourcing computation results and a novel polynomial factorization algorithm into the smart contract of Ethereum,which not only enables the verification of the outsourcing result without a trusted third party but also resists collusion *** results of the theoretical analysis and experimental performance evaluation demonstrate that the proposed protocol is secure,reliable,and more effective compared with state-of-the-art approaches.

关键词： Outsourcing computation Ethereum Smart contract Public verification Homomorphic encryption

A strongly secure identity-based authenticated group key exchange protocol

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Science China(Information Sciences) 2015年第9期58卷 98-109页

作者： TENG JiKai WU ChuanKun TANG ChunMing tian youliang State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences School of Mathematics and Information Science Guangzhou University

In group key exchange(GKE) protocols, a shared secret key is established among a group of members for cryptographic use over a public network. An identity-based protocol is preferred to that under the employment of traditional public key infrastructure(PKI), since identity-based cryptosystem can simplify public key management procedure. In ASIACCS 2011, a security model for GKE protocol called EGBG model was proposed. The EGBG model takes ephemeral secret key leakage attack into consideration. Until now, there is no ID-based GKE protocol secure in the EGBG model. In this paper, we propose an identity-based GKE protocol. Its AKE-security with KCIR and full forward secrecy, MA-security with KCIR and its contributiveness are proven in the EGBG model. The proposed protocol does not involve NAXOS trick, which does not resist side channel attack and thus it provides stronger security guarantee. It achieves mutual authentication without applying signature, which makes the protocol more practical.

关键词： identity-based cryptography group key exchange provable security insider security

An Attribute-Based Signcryption Scheme and Its Application in Information Hiding

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Chinese Journal of Electronics 2016年第4期25卷 632-640页

作者： PENG Changgen WANG Weiru tian youliang YUAN Zhilong College of Computer Science and Technology Guizhou University Faculty of Science and Technology University of Macau

In order to provide a secure,reliable and flexible way to hide information,a new attribute-based signcryption scheme based on ciphertext-policy and its security proof are *** scheme not only can simultaneously fulfil both authentication and confidentiality in an efficient way,but also implements a hierarchical decryption in one group and also between different groups according to user’s authority(different users satisfying the same access structure can be considered as a group).We provide a solution to information hiding using our proposed scheme which can embed ciphertext into a *** the hierarchical decryption property,different users will obtain different message from the same *** user can not get any information without private key because message existed in the carrier is *** solution can be applied in sharing important message under the public network.

关键词： Attribute-based signcryption Information hiding Access structure Hierarchical decryption

Achieving dynamic privacy measurement and protection based on reinforcement learning for mobile edge crowdsensing of IoT

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Digital Communications and Networks 2024年第2期10卷 380-388页

作者： Renwan Bi Mingfeng Zhao Zuobin Ying youliang tian Jinbo Xiong Fujian Provincial Key Laboratory of Network Security and Cryptology College of Computer and Cyber SecurityFujian Normal UniversityFuzhou350117China Guangxi Key Laboratory of Trusted Software Guilin University of Electronic TechnologyGuilin541004China Faculty of Data Science City University of Macao999078MacaoChina State Key Laboratory of Public Big Data College of Computer Science and TechnologyGuizhou UniversityGuiyang550025China

With the maturity and development of 5G field,Mobile Edge CrowdSensing(MECS),as an intelligent data collection paradigm,provides a broad prospect for various applications in ***,sensing users as data uploaders lack a balance between data benefits and privacy threats,leading to conservative data uploads and low revenue or excessive uploads and privacy *** solve this problem,a Dynamic Privacy Measurement and Protection(DPMP)framework is proposed based on differential privacy and reinforcement ***,a DPM model is designed to quantify the amount of data privacy,and a calculation method for personalized privacy threshold of different users is also ***,a Dynamic Private sensing data Selection(DPS)algorithm is proposed to help sensing users maximize data benefits within their privacy ***,theoretical analysis and ample experiment results show that DPMP framework is effective and efficient to achieve a balance between data benefits and sensing user privacy protection,in particular,the proposed DPMP framework has 63%and 23%higher training efficiency and data benefits,respectively,compared to the Monte Carlo algorithm.

关键词： Mobile edge crowdsensing Dynamic privacy measurement Personalized privacy threshold Privacy protection Reinforcement learning

DBKEM-AACS: a distributed key escrow model in blockchain with anonymous authentication and committee selection

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Science China(Information Sciences) 2023年第3期66卷 289-290页

作者： Axin XIANG Hongfeng GAO youliang tian Liang WAN College of Computer Science and Technology Guizhou University Institute of Cryptography and Data Security Guizhou University Network and Information Management Center Guizhou University State Key Laboratory of Public Big Data Guizhou University Institute of Computer Software and Theory Guizhou University

Dear editor, Key security is of great practical significance and demand to guarantee the security of digital assets in the blockchain system. At present, users prefer to escrow their assets on centralized institutions, but this phenomenon has gone against the unique characteristics of decentralization and anonymity in the blockchain. Among them, the suspense incidents of assets lock or lost are enough to prove that the security of escrowed keys on the exchanges is questionable.

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Blockchain Data Privacy Access Control Based on Searchable Attribute Encryption

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Computers, Materials & Continua 2021年第1期66卷 871-884页

作者： Tao Feng Hongmei Pei Rong Ma youliang tian Xiaoqin Feng Lanzhou University of Technology Lanzhou730050China College of Computer Science and Technology Guizhou UniversityGuizhouChina School of Computer Xiandian UniversityXi’anChina

Data privacy is important to the security of our society,and enabling authorized users to query this data efficiently is facing more ***,blockchain has gained extensive attention with its prominent characteristics as public,distributed,decentration and chronological ***,the transaction information on the blockchain is open to all nodes,the transaction information update operation is even more *** the leakage of transaction information will cause huge losses to the transaction *** response to these problems,this paper combines hierarchical attribute encryption with linear secret sharing,and proposes a blockchain data privacy protection control scheme based on searchable attribute encryption,which solves the privacy exposure problem in traditional blockchain *** user’s access control is implemented by the verification nodes,which avoids the security risks of submitting private keys and access structures to the blockchain *** the private key component with the random identity of the user node in the blockchain can solve the collusion *** addition,authorized users can quickly search and supervise transaction information through searchable *** improved algorithm ensures the security of ***,based on the DBDH hypothesis,the security of the scheme is proved in the random prediction model.

关键词： Blockchain privacy protection attribute encryption access control searchable-encryption

One-Time Rational Secret Sharing Scheme Based on Bayesian Game

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Wuhan University Journal of Natural Sciences 2011年第5期16卷 430-434页

作者： tian youliang MA Jianfeng PENG Changgen CHEN Xi JI Wenjiang Key Laboratory of Computer Network and InformationSecurity of Ministry of Education/Xidian University Xi'an710071 Shaanxi China College of Science Guizhou University Guiyang 550025Guizhou China

The rational secret sharing cannot be realized in the case of being played only once, and some punishments in the one-time rational secret sharing schemes turn out to be empty threats. In this paper, after modeling 2-out-of-2 rational secret sharing based on Bayesian game and considering different classes of protocol parties, we propose a 2-out-of-2 secret sharing scheme to solve cooperative problem of a rational secret sharing scheme being played only once. Moreover, we prove that the strategy is a perfect Bayesian equilibrium, adopted only by the parties in their decision-making according to their belief system （denoted by the probability distribution） and Bayes rule, without requiring simultaneous channels.

关键词： rational secret sharing one-time rational secret sharing Bayesian game perfect Bayesian equilibrium

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支持受控共享的医疗数据隐私保护方案

西安电子科技大学学报 2024年第1期51卷 165-177页

作者：郭庆田有亮贵州大学计算机科学与技术学院贵州贵阳550025 贵州大学公共大数据国家重点实验室贵州贵阳550025 贵州大学密码学与数据安全研究所贵州贵阳550025

患者医疗健康数据信息的合理利用促进了医学研究机构的发展。针对目前患者与医疗研究机构间共享医疗数据隐私易泄露,以及患者对医疗数据的使用情况不可控的问题,提出一种支持受控共享的医疗数据隐私保护方案。首先,将区块链与代理服务... 详细信息

患者医疗健康数据信息的合理利用促进了医学研究机构的发展。针对目前患者与医疗研究机构间共享医疗数据隐私易泄露,以及患者对医疗数据的使用情况不可控的问题,提出一种支持受控共享的医疗数据隐私保护方案。首先,将区块链与代理服务器结合设计医疗数据受控共享模型,区块链矿工节点分布式构造代理重加密密钥,使用代理服务器存储和转换医疗数据密文,利用代理重加密技术在保护患者隐私的同时实现医疗数据安全共享。其次,设计用户权限动态调整机制,由患者与区块链授权管理节点交互通过授权列表来更新医疗数据访问权限,实现患者对医疗数据的可控共享。最后,安全性分析表明,所提方案可以在医疗数据隐私保护的同时,实现医疗数据动态共享,并且可以抵抗共谋攻击。性能分析表明,该方案在通信开销、计算开销方面具有优势,适用于患者或医院与研究机构间的数据受控共享。

关键词：区块链医疗数据受控共享代理重加密隐私保护