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A User-Centric Data Secure Creation Scheme in Cloud Computing

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Chinese Journal of electronics 2016年第4期25卷 753-760页

作者： SU Mang LI Fenghua SHI Guozhen GENG Kui XIONG Jinbo school of computer science and Engineering Nanjing University of Science and Technology State Key Laboratory of information security Institute of Information EngineeringChinese Academy of Sciences Department of information security Beijing Electronic Science and Technology Institute State Key Laboratory of Integrated Services Network Xidian University

Due to the use of the cloud computing technology,the ownership is separated from the administration of the data in cloud and the shared data might be migrated between different clouds,which would bring new challenges to data secure creation,especially for the data privacy *** propose a User-centric data secure creation scheme(UCDSC) for the security requirements of resource owners in *** this scheme,a data owner first divides the users into different *** data owner encrypts data and defines different secure managing policies for the data according to *** encrypt the data in UCDSC,we present an algorithm based on Access control conditions proxy re-encryption(ACC-PRE),which is proved to be master secret secure and Chosen-ciphertext attack(CCA) secure in random oracle *** give the application protocols and make the comparisons between some existing approaches and UCDSC.

关键词： User-centric ACC-PRE Data creation Master secret secure CCA

Constructing Odd-Variable Rotation Symmetric Boolean Functions with Optimal Algebraic Immunity and High Nonlinearity

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Chinese Journal of electronics 2019年第1期28卷 45-51页

作者： ZHAO Qinglan HAN Gang ZHENG Dong LI Xiangxue school of information security Engineering Shanghai Jiaotong University National Engineering Laboratory for Wireless security Xi'an University of Post and Telecommunications College of electronic information Northwestern Polytechnical University school of computer science and technology East China Normal University

Rotation symmetric Boolean functions(RSBFs) have attracted widespread attention due to their good cryptographic properties. We present a new construction of RSBFs with optimal algebraic immunity on odd number of variables. The nonlinearity of the new function is much higher than other best known RSBFs with optimal algebraic immunity. The algebraic degree of the constructed n-variable RSBF can achieve the upper bound n-1 when n/2 is odd or when n/2 is a power of 2 for n≥*** addition, the constructed function can possess almost perfect immunity to fast algebraic attacks for n=11, 13, 15.

关键词： Cryptography Boolean functions Algebraic immunity Nonlinearity Algebraic attack

A New Method for Meet-in-the-Middle Attacks on Reduced AES

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China Communications 2011年第2期8卷 21-25页

作者：董晓丽胡予濮韦永壮陈杰 Key Lab. of computer Networks & information security Ministry of EducationXidian University school of information and Communication Guilin University of Electronic Technology State Key Lab. of information security Institute of SoftwareChinese Academy of Sciences

A new 5-round distinguisher of AES with key whitening is presented by using the properties of its round transformation. Based on this distinguisher,we present new meet-in-the-middle attacks on reduced AES considering the key schedule and the time-memory tradeoff approach. New attacks improve the best known meet-in-the-middle attacks on reduced AES presented at *** reduce the time complexity of attacks on 7-round AES-192 and 8-round AES-256 by a factor of at least 28. Moreover,the distinguisher can be exploited to develop the attack on 8-round AES-192.

关键词： AES Rijndael cryptanalysis meet-in-the-middle attack

On-chain is not enough:Ensuring pre-data on the chain credibility for blockchain-based source-tracing systems

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Digital Communications and Networks 2023年第5期9卷 1053-1060页

作者： Yilei Wang Zhaojie Wang Guoyu Yang Shan Ai Xiaoyu Xiang Chang Chen Minghao Zhao school of computer science Qufu Normal UniversityRizhao276826China Guangxi Key Laboratory of Cryptography and information security Guilin University of Electronic TechnologyGuilin541004China Institute of Artificial Intelligence and Blockchain Guangzhou UniversityGuangzhou510006China school of Software Tsinghua UniversityTsinghua UniversityBeijing100191China

The blockchain provides a reliable and scalable method for enabling source-tracing functionality in large-scale Internet of Things(IoT)*** blockchain-based source tracing applications are generally based on the hypothesis that the raw data collected by each IoT node are credible and consistent,which however may not always be the *** no mechanism ensures the reliability of the original data collected from the IoT devices,these data may be accidently screwed up or maliciously tampered with before they are uploaded *** address this issue,we propose the Multi-dimensional Certificates of Origin(MCO)method to filter out the potentially incredible data-till all the data uploaded to the chain are *** achieve this,we devise the Multidimensional information Cross-Verification(MICV)and Multi-source Data Matching Calculation(MDMC)*** verifies whether a to-be-uploaded datum is consistent or credible,and MDMC determines which data should be discarded and which data should be kept to retain the most likely credible/untampered ones in the circumstance when data inconsistency ***-scale experiments show that our scheme ensures on the credibility of data and off the chain with an affordable overhead.

关键词： Blockchain Traceability Blockchain security

Minimum Cost Multi-Path Parallel Transmission with Delay Constraint by Extending Openflow

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China Communications 2018年第3期15卷 15-26页

作者： Kuangyu Qin Chuanhe Huang N.Ganesan Kewei Liu Xi Chen computer school of Wuhan university Wuhan 430072 China Collaborative Innovation Center of Geospatial technology Wuhan 430072 China school of computer science and information security Guilin University of Electronic Technology Guilin 541004 China Regional Institute of Co-operative Management Banashankari 2nd Stage Bangalore 560070 India

Sometimes user has the requirement to run a high bandwidth application over a low bandwidth network. But its implementation is not easy as the traditional network transmits data with only one path where its bandwidth is lower than the demand. Although the current network technology like SDN has the ability to precisely control the data transmission in the network, but till now the standard openflow protocol does not support splitting one flow to multiple flows. In this paper, a flow splitting algorithm is proposed. The algorithm splits a data flow to multiple sub-flows by extending the openflow protocol. A multiple paths routing algorithm is also proposed to implement the multi-path parallel transmission in the paper. The algorithm selects multiple paths and minimizes the cost of transmission under the constraint of maximum delay and delay variance. The simulations show the algorithms can significantly improve the transmission performance.

关键词： SDN OpenFlow multi-pathtransmission

Sharing of Encrypted Lock Keys in the Blockchain-Based Renting House System from Time- and Identity-Based Proxy Reencryption

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China Communications 2022年第5期19卷 164-177页

作者： Zhiwei Wang Liping Qian Danwei Chen Guozi sun school of computer Nanjing University of Posts and TelecommunicationsNanjing 210023China Jiangsu Key Laboratory of Big Data security and Intelligent Processing Nanjing 210023China Guangxi Key Laboratory of Cryptography and information security Department of Computer SciencesGuilin University of Electronic TechnologyGuilin 541004China

To design an efficient protocol for sharing the encrypted lock keys in the renting house system,we introduce a new notion called time-and identitybased proxy reencryption(TIPRE)and the blockchain *** CPA secure TIPRE scheme is constructed from Green et al.’s identity-based proxy reencryption scheme by adding the time *** every time period,a time stamp authority generates a public key embedded with the current time stamp for each *** our protocol for the renting house system,the TIPRE scheme is the primary building block,and the blockchain platform serves instead of a trusted third party,such as a real estate agency between landlords and *** TIPRE scheme allows the landlord to change the lock key at each time period for *** blockchain platform allows the landlords and tenants to directly interact,and all of the interactions are recorded in the blockchain database to provide the desired security requirements,such as nonrepudiation and ***,we provide the secure analysis of our protocol and test its performance by implementing it in the MacBook Pro and the Intel Edison development platforms.

关键词： identity-based proxy reencryption time stamp renting houses system blockchain

Quantum secure direct communication and authentication protocol with single photons

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Chinese science Bulletin 2013年第36期58卷 4571-4576页

作者： CHANG Yan XU ChunXiang ZHANG ShiBin YAN LiLi school of computer science and Engineering University of Electronic Science and Technology of China Department of Network Engineering Chengdu University of Information Technology

A quantum secure direct communication and authentication protocol is proposed by using single *** information transmission is completed by sending photons once in quantum channel,which improves the efficiency without losing the *** protocol encodes identity-string of the receiver as single photons sequence,which acts as detection sequence and implements *** secret message is encoded as single photons sequence,it is encrypted with identity-string of the sender by using XOR operation,which defends quantum teleportation attack *** base identity-strings of the sender and the receiver are reused unconditionally secure even in noisy *** with the protocol proposed by Wang et al.(Phys Lett A,2006,358:256–258),the protocol in this study sends photons once in one transmission and defends most attacks including‘man-in-the-middle’attack and quantum teleportation attack efficiently.

关键词：量子安全直接通信认证协议单光子信息发送量子隐形传态信息编码隐形传输无条件安全

Quantum broadcast communication and authentication protocol with a quantum one-time pad

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Chinese Physics B 2014年第1期23卷 80-83页

作者：昌燕许春香张仕斌闫丽丽 school of computer science and technology University of Electronic Science and Technology of China Department of Network Engineering Chengdu University of Information Technology

A quantum broadcast communication and authentication protocol with a quantum one-time pad based on the Greenberger-Horne-Zeilinger state is proposed. A binary string is used to express the identity of the receiver, which is encoded as a single sequence of photons. The encoded photon sequence acts as a detection sequence and implements au- thentication. An XOR operation serves as a one-time pad and is used to ensure the security of the protocol. The binary string is reused even in a noisy channel and proves to be unconditionally secure. In contrast with the protocols proposed by Wang et al. [Chin. Phys. 16 1868 （2007）] and Yang et al. [Chin. Phys. B 19 070304 （2010）], the protocol in this study implements the identity authentication with a reusable binary string; no hash function or local unitary operation is used. The protocol in this study is also easier to implement and highly efficient without losing security.

关键词： quantum broadcast communication quantum secure direct communication Greenberger–Horne–Zeilinger(GHZ) state authentication

A secure data sharing scheme with cheating detection based on Chaum-Pedersen protocol for cloud storage

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Frontiers of information technology & electronic Engineering 2019年第6期20卷 787-800页

作者： Xin WANG Bo YANG Zhe XIA Hong-xia HOU school of computer science Shaanxi Normal University Xi'an 710119 China school of electronic information and Artificial Intelligence Shaanxi University of Science and Technology Xi'an 710021 China State Key Laboratory of information security Chinese Academy of Sciences Beijing 100093 China school of computer science and technology Wuhan University of Technology Wuhan 430070 China

With the development of cloud computing technology, data can be outsourced to the cloud and conveniently shared among users. However, in many circumstances, users may have concerns about the reliability and integrity of their data. It is crucial to provide data sharing services that satisfy these security requirements. We introduce a reliable and secure data sharing scheme, using the threshold secret sharing technique and the ChaumPedersen zero-knowledge proof. The proposed scheme is not only effective and flexible, but also able to achieve the semantic security property. Moreover, our scheme is capable of ensuring accountability of users’ decryption keys as well as cheater identification if some users behave dishonestly. The efficiency analysis shows that the proposed scheme has a better performance in terms of computational cost, compared with the related work. It is particularly suitable for application to protect users’ medical insurance data over the cloud.

关键词： Data sharing Chaum- Pedersen proof Cheating det ection Cloud storage