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12th International IEEE Scientific and Technical Conference on Dynamics of Systems, Mechanisms and Machines (Dynamics)

作者： Ponomarev, K. Y. Nissenbaum, O. V. Univ Tyumen Dept Informat Secur Tyumen Russia

ISBN: (纸本)9781538659410

This paper aims at presenting the approach for the process of attributes verification in the attribute-based encryption schemes. We considered ABE methods in the Internet of Things environment. The main idea is to allow users or device owners to verify attributes using standardized and well-known authorization protocols like Oauth2. More accurately, attribute Authority will use Authentication as a Service approach for users and device controllers authentication. We described software service for attribute-based encryption methods in the context of FIWARE platform. Components of this platform use Oauth2 for authentication and authorization mechanisms. More specifically, we developed a web application which allows devices to create orders for ABE secret keys with particular attributes. Further users should approve or deny these orders. We used FIWARE components for users and devices authentication. To the best of our knowledge, it is the first implementation of ABE algorithms in FIWARE ecosystem.

关键词： fiware attribute-based encryption internet of things

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attribute-based encryption with Flexible Revocation for IoV 18

Attribute-based Encryption with Flexible Revocation for IoV

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18th International Conference on Future Networks and Communications (FNC) / 20th International Conference on Mobile Systems and Pervasive Computing (MobiSPC) / 13th International Conference on Sustainable Energy Information Technology (SEIT)

作者： Chen, Ruoyu Li, Yuhong Rahmani, Rahim Beijing Univ Posts & Telecommun Sch Comp Sci Beijing 100876 Peoples R China Stockholm Univ Dept Comp & Syst Sci S-16407 Stockholm Sweden

attribute-based encryption (ABE) has been used to provide data confidentiality and fine-grained access control in the Internet of Vehicles (IoV). However, the attributes of vehicles in IoV might change frequently due to the movements of vehicles. Thus, the invalid attributes need to be revoked in time and efficiently to ensure the security of the system. In this paper, we propose a data sharing scheme based on ABE for IoV. By using a binary tree and attribute version keys, flexible revocation can be achieved for IoV. Moreover, the ciphertext can be stored on clouds, and the distribution and of attribute keys can be realized by distributed attribute authorities. We performed the security analysis and proved the security of the proposed scheme. The results showed that the proposed scheme has lower average computing overhead in terms of attribute revocations compared with other schemes based on ABE, and can satisfy the performance requirement data sharing for IoV. (c) 2023 The Authors. Published by Elsevier B.V.

关键词： Internet of vehicles attribute-based encryption revocation data sharing

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attribute-based encryption for Access Control Using Elementary Operations 27

Attribute-based Encryption for Access Control Using Elementa...

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27th IEEE Computer Security Foundations Symposium (CSF)

作者： Crampton, Jason Pinto, Alexandre Royal Holloway Univ London Informat Secur Grp Egham Surrey England Inst Univ Maia Maia Portugal

ISBN: (纸本)9781479942909

attribute-based encryption (ABE) has attracted considerable attention in the research community in recent years. It has a number of applications such as broadcast encryption and the cryptographic enforcement of access control policies. Existing instantiations of ABE make use of access structures encoded either as trees of Shamir threshold secret-sharing schemes or monotone span programs. In both cases, the appropriate computations for these schemes are interleaved with the standard operations for cryptographic pairings. Moreover, the resulting schemes are not particularly appropriate for access control policies. In this paper, therefore, we start by examining the representation of access control policies and investigate alternative secret-sharing schemes that could be used to enforce them. We develop new ABE schemes based on the Benaloh-Leichter scheme, which employs only elementary arithmetic operations, and then extend this to arbitrary linear secret-sharing schemes. We then compare the complexity of existing schemes with our scheme based on Benaloh-Leichter.

关键词： access control attribute-based encryption secret sharing

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attribute-based encryption with Break-Glass

Attribute-Based Encryption with Break-Glass

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4th International Workshop on Information Security Theory and Practice (WISTP 2010)

作者： Brucker, Achim D. Petritsch, Helmut Weber, Stefan G. SAP Res Vincenz Priessnitz Str 1 D-76131 Karlsruhe Germany Tech Univ Darmstadt Telecooperat Grp D-64289 Darmstadt Germany

ISBN: (纸本)9783642123672

attribute-based encryption (ABE) allows for implementing One-grained decentralized access control based on properties or attributes a user has. Thus, there is no need for writing detailed, user-based policies in advance. This makes A BE in particular interesting for implementing security mechanisms in dynamic environments such as ubiquitous computing, disaster management, or health-care. For supporting the latter two application areas, common ABE approaches lack one important feature: break-glass, e., the controlled overriding of access control restrictions. In this paper we present an integration of break-glass into an approach for end-to-end secure information sharing using ABE techniques.

关键词： Access control break-glass attribute-based encryption disaster management trusted computing platform

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attribute-based encryption with Personalized Search 15

Attribute-Based Encryption with Personalized Search

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15th IEEE International Symposium on Parallel and Distributed Processing with Applications (ISPA) / 16th IEEE International Conference on Ubiquitous Computing and Communications (IUCC)

作者： Zhang, Qiang Wang, Guojun Liu, Qin Peng, Tao Cent South Univ Sch Informat Sci & Engn Changsha 410083 Hunan Peoples R China Guangzhou Univ Sch Comp Sci & Educ Software Guangzhou 510006 Guangdong Peoples R China Hunan Univ Coll Comp Sci & Elect Engn Changsha 410082 Hunan Peoples R China

ISBN: (纸本)9781538637906

With the development of cloud computing, more and more enterprises will outsource their sensitive data for sharing in a cloud. However most existing works follow the model of "one size fits all" over encrypted outsourced cloud data, and ignore personalized search intention. Therefore, it is important to design a searchable encryption scheme that supports personalized search and fine-grained access control. In this paper, for the first time, we build a user interest model for an individual user according to the department the user belongs to and his search history. To address the limitations of the model of one size fits all and access control, we propose attribute-based encryption with personalized search (AEPS) which is suitable to multi-user sharing cloud computing search services.

关键词： attribute-based encryption Personalized Search Personalized Interest Model Personalized Ranking Access Control

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attribute-based encryption with Expressive and Authorized Keyword Search 22nd

Attribute-Based Encryption with Expressive and Authorized Ke...

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22nd Australasian Conference on Information Security and Privacy (ACISP)

作者： Cui, Hui Deng, Robert H. Liu, Joseph K. Li, Yingjiu Singapore Management Univ Sch Informat Syst Singapore Singapore Monash Univ Fac Informat Technol Melbourne Vic Australia

ISBN: (纸本)9783319600550;9783319600543

To protect data security and privacy in cloud storage systems, a common solution is to outsource data in encrypted forms so that the data will remain secure and private even if storage systems are compromised. The encrypted data, however, must be pliable to search and access control. In this paper, we introduce a notion of attribute-based encryption with expressive and authorized keyword search (ABE-EAKS) to support both expressive keyword search and fine-grained access control over encrypted data in the cloud. In ABE-EAKS, every data user is associated with a set of attributes and is issued a private attribute-key corresponding to his/her attribute set, and each data owner encrypts the message using attribute-based encryption and attaches the encrypted message with encrypted keywords related with the message, and then uploads the encrypted message and keywords to the cloud. To access encrypted messages containing certain keywords satisfying a search policy, a data user generates a trapdoor for the search policy using his/her private attributekey and sends it to the cloud server equipped to the cloud. The cloud server searches over encrypted data stored in the cloud for the encrypted messages containing keywords satisfying the search policy and sends back the results to the data user who then decrypts the returned ciphertexts to obtain the underlying messages. We present a generic construction for ABE-EAKS, formally prove its security, give a concrete construction, and then extend the concrete ABE-EAKS scheme to support user revocation. Also, we implement the proposed ABE-EAKS scheme and its extension and study their performance through experiments.

关键词： Cloud storage Data security and privacy Keyword search attribute-based encryption Access control

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attribute-based encryption Scheme Supporting Tree-Access Structure on Ideal Lattices 4th

Attribute-Based Encryption Scheme Supporting Tree-Access Str...

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4th International Conference on Cloud Computing and Security (ICCCS)

作者： Yu, Jinxia Yang, Chaochao Tang, Yongli Yan, Xixi Henan Polytech Univ Coll Comp Sci & Technol Jiaozuo 454000 Henan Peoples R China

ISBN: (纸本)9783030000127;9783030000110

attribute-based encryption (ABE) has been an active research area in cryptography due to its attractive applications. But almost all ABE scheme are based on bilinear maps, which leave them vulnerable to quantum cryptanalysis. The cryptographic system based on lattices is considered to be able to resist the quantum attack, and the computational efficiency is high. Therefore, the encryption scheme based on lattice theory has received wide attention in recent years. At present, the research of the attribute based encryption scheme on ideal lattices is lacking, and there are many problems need to be solved. Lots of existing schemes support only a single access policy and cannot support flexible expressions. For solving the problem of designing access structure in attribute-based encryption scheme under quantum environment, combined with Zhu's scheme, an attribute-based encryption scheme supporting tree access structures on ideal lattices is introduced. The scheme adopts tree-access structure to express access strategy, the leaf nodes of the tree represent attributes, and the non-leaf nodes represent logical operators. The access tree can express the access policy flexibly by Shamir threshold secret sharing technology, including "and", "or", "threshold" operation. The scheme is proved to be secure against chosen plaintext attack under the standard mode. The analysis shows that our scheme can resist the quantum attack and realize the flexible access strategy with the better performance.

关键词： attribute-based encryption Ideal lattices Tree-access structure

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attribute-based encryption Method for Data Privacy Security Protection 20th

Attribute-Based Encryption Method for Data Privacy Security ...

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20th International Conference on Intelligent Computing (ICIC)

作者： Li, Ziqian He, Yeshen Zhang, Yiying Li, Siwei Wang, Cong Zhang, Xiankun Tianjin Univ Sci & Technol Artificial Intelligence Inst Tianjin 300457 Peoples R China Shenzhen Guodian Technol Commun Co Shenzhen 518000 Guangdong Peoples R China Beijing Zhongdian Feihua Commun Co Beijing 100070 Peoples R China

ISBN: (纸本)9789819756056;9789819756063

Storing power data in a cloud environment is an important step in the digital transformation of the power industry. Power data must be protected by a strict protection mechanism. Ensure that it is protected from any unauthorized access, tampering, or disclosure. However, the privacy security of the access policy cannot be guaranteed in the use of the ABE. It is also not possible to fully respond to changes in the user's attributes. In response to the above problems, this paper proposes a scheme combining blockchain technology and attribute-based encryption. By using the blockchain platform, it solves the problem of single point of failure caused by relying on a central entity in the traditional CP-ABE solution. The data information adopts CP-ABE encryption mode, stored the symmetric decryption key in the cloud server. Meanwhile, key information such as data summaries and file locations are stored on the blockchain to reduce the risk of data tampering with cloud servers. To further strengthen the storage security of data, access policies are converted into an access tree structure. And completely hide the policy in the redaction. This approach can effectively prevent unauthorized access. Experimental tests verify that the proposed method can better realize the privacy protection of power data in cloud storage.

关键词： attribute-based encryption Tactical hiding Blockchain Privacy protection Cloud storage

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ABDKS:attribute-based encryption with dynamic keyword search in fog computing

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Frontiers of Computer Science 2021年第5期15卷 187-195页

作者： Fei MENG Leixiao CHENG Mingqiang WANG School of Mathematics Shandong UniversityJinan 250100China Key Laboratory of Cryptologic Technology and Information Security Ministry of EducationJinan 250100China School of Mathematical Sciences Fudan UniversityShanghai 200433China

attribute-based encryption with keyword search(ABKS)achieves both fine-grained access control and keyword ***,in the previous ABKS schemes,the search algorithm requires that each keyword to be identical between the target keyword set and the ciphertext keyword set,otherwise the algorithm does not output any search result,which is not conducive to ***,the previous ABKS schemes are vulnerable to what we call a peer-decryption attack,that is,the ciphertext may be eavesdropped and decrypted by an adversary who has sufficient authorities but no information about the ciphertext *** this paper,we provide a new system in fog computing,the ciphertext-policy attribute-based encryption with dynamic keyword search(ABDKS).In ABDKS,the search algorithm requires only one keyword to be identical between the two keyword sets and outputs the corresponding correlation which reflects the number of the same keywords in those two *** addition,our ABDKS is resistant to peer-decryption attack,since the decryption requires not only sufficient authority but also at least one keyword of the *** that,the ABDKS shifts most computational overheads from resource constrained users to fog *** security analysis shows that the ABDKS can resist Chosen-Plaintext Attack(CPA)and Chosen-Keyword Attack(CKA).

关键词： access control attribute-based encryption keyword search fog computing outsourcing

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Substring-searchable attribute-based encryption and its application for IoT devices

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Digital Communications and Networks 2021年第2期7卷 277-283页

作者： Xi Sun Hao Wang Xiu Fu Hong Qin Mei Jiang Likun Xue Xiaochao Wei School of Information Science and Engineering Shandong Normal UniversityJinanChina Guangxi Key Laboratory of Cryptography and Information Security GuilinChina Shandong Provincial Hospital Jinan China

With the development of big data and cloud computing technology,more and more users choose to store data on cloud servers,which brings much convenience to their management and use of data,and also the risk of data leakage.A common method to prevent data leakage is to encrypt the data before uploading it,but the traditional encryption method is often not conducive to data sharing and *** this paper,a new kind of attribute-based encryption(ABE)scheme,which is called the Sub-String Searchable ABE(SSS-ABE)scheme,is proposed for the sharing and querying of the encrypted *** the SSS-ABE scheme,the data owner encrypts the data under an access structure,and only the data user who satisfies the access structure can query and decrypt *** data user can make a substring query on the whole ciphertext without setting keywords in *** addition,the outsourcing method is also introduced to reduce the local computation of the decryption process so that the outsourcing SSS-ABE scheme can be applied to IoT devices.

关键词： attribute-based encryption Searchable encryption Outsourcing decryption IoT divices

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