Ciphertext-Policy Attribute-Based Encryption with Outsourced Set Intersection in Multimedia Cloud Computing

In a multimedia cloud computing system, suppose all cloud users outsource their own data sets to the cloud in the encrypted form. Each outsourced set is associated with an access structure such that a valid data user, Bob, with the credentials satisfying the access structure is able to conduct compu...

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Autores principales:	Yanfeng Shi, Shuo Qiu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	PSI CP-ABE outsourced computing multimedia cloud computing Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/f97c3f0276384105bad128a0fce024d6
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id	oai:doaj.org-article:f97c3f0276384105bad128a0fce024d6
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spelling	oai:doaj.org-article:f97c3f0276384105bad128a0fce024d62021-11-11T15:40:35ZCiphertext-Policy Attribute-Based Encryption with Outsourced Set Intersection in Multimedia Cloud Computing10.3390/electronics102126852079-9292https://doaj.org/article/f97c3f0276384105bad128a0fce024d62021-11-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/21/2685https://doaj.org/toc/2079-9292In a multimedia cloud computing system, suppose all cloud users outsource their own data sets to the cloud in the encrypted form. Each outsourced set is associated with an access structure such that a valid data user, Bob, with the credentials satisfying the access structure is able to conduct computing over outsourced encrypted set (e.g., decryption or other kinds of computing function). Suppose Bob needs to compute the set intersection over a data owner Alice’s and his own outsourced encrypted sets. Bob’s simple solution is to download Alice’s and Bob’s outsourced encrypted sets, perform set intersection operation, and decrypt the set intersection ciphertexts. A better solution is for Bob to delegate the cloud to calculate the set intersection, without giving the cloud any ability in breaching the secrecy of the sets. To solve this problem, this work introduces a novel primitive called <i>ciphertext-policy attribute-based encryption with outsourced set intersection</i> for multimedia cloud computing. It is the first cryptographic algorithm supporting a fully outsourced encrypted storage, computation delegation, fine-grained authorization security for ciphertext-policy model, without relying on an online trusted authority or data owners, and multi-elements set, simultaneously. We construct a scheme that provably satisfies the desirable security properties, and analyze its efficiency.Yanfeng ShiShuo QiuMDPI AGarticlePSICP-ABEoutsourced computingmultimedia cloud computingElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2685, p 2685 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	PSI CP-ABE outsourced computing multimedia cloud computing Electronics TK7800-8360
spellingShingle	PSI CP-ABE outsourced computing multimedia cloud computing Electronics TK7800-8360 Yanfeng Shi Shuo Qiu Ciphertext-Policy Attribute-Based Encryption with Outsourced Set Intersection in Multimedia Cloud Computing
description	In a multimedia cloud computing system, suppose all cloud users outsource their own data sets to the cloud in the encrypted form. Each outsourced set is associated with an access structure such that a valid data user, Bob, with the credentials satisfying the access structure is able to conduct computing over outsourced encrypted set (e.g., decryption or other kinds of computing function). Suppose Bob needs to compute the set intersection over a data owner Alice’s and his own outsourced encrypted sets. Bob’s simple solution is to download Alice’s and Bob’s outsourced encrypted sets, perform set intersection operation, and decrypt the set intersection ciphertexts. A better solution is for Bob to delegate the cloud to calculate the set intersection, without giving the cloud any ability in breaching the secrecy of the sets. To solve this problem, this work introduces a novel primitive called <i>ciphertext-policy attribute-based encryption with outsourced set intersection</i> for multimedia cloud computing. It is the first cryptographic algorithm supporting a fully outsourced encrypted storage, computation delegation, fine-grained authorization security for ciphertext-policy model, without relying on an online trusted authority or data owners, and multi-elements set, simultaneously. We construct a scheme that provably satisfies the desirable security properties, and analyze its efficiency.
format	article
author	Yanfeng Shi Shuo Qiu
author_facet	Yanfeng Shi Shuo Qiu
author_sort	Yanfeng Shi
title	Ciphertext-Policy Attribute-Based Encryption with Outsourced Set Intersection in Multimedia Cloud Computing
title_short	Ciphertext-Policy Attribute-Based Encryption with Outsourced Set Intersection in Multimedia Cloud Computing
title_full	Ciphertext-Policy Attribute-Based Encryption with Outsourced Set Intersection in Multimedia Cloud Computing
title_fullStr	Ciphertext-Policy Attribute-Based Encryption with Outsourced Set Intersection in Multimedia Cloud Computing
title_full_unstemmed	Ciphertext-Policy Attribute-Based Encryption with Outsourced Set Intersection in Multimedia Cloud Computing
title_sort	ciphertext-policy attribute-based encryption with outsourced set intersection in multimedia cloud computing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f97c3f0276384105bad128a0fce024d6
work_keys_str_mv	AT yanfengshi ciphertextpolicyattributebasedencryptionwithoutsourcedsetintersectioninmultimediacloudcomputing AT shuoqiu ciphertextpolicyattributebasedencryptionwithoutsourcedsetintersectioninmultimediacloudcomputing
_version_	1718434450771017728

Ciphertext-Policy Attribute-Based Encryption with Outsourced Set Intersection in Multimedia Cloud Computing

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