Flexible and Fine-Grained Attribute-Based Data Storage in Cloud Computing

Li, Jiguo; Wei, Yao; Zhang, Yichen; Qian, Huiling; Han, Jinguang

doi:10.1109/tsc.2016.2520932

Cited by 261 publications

(167 citation statements)

References 26 publications

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“…However, this scheme was unsuitable to be applied to the data sharing system mainly considering that the data owner will no longer take direct control of data after outsourcing data to the cloud storage server. These schemes [24][25][26] also addressed the user revocation in the ABE-based data sharing system. In [25], in order to revoke users, the trusted authority should generate all secret keys including the proxy key; simultaneously, the server would reencrypt the ciphertext to hamper revoked users from deciphering the ciphertext after receiving the proxy key from the trusted authority.…”

Section: User Revocationmentioning

confidence: 99%

“…To address this problem, Hur [26] integrated a key issuing protocol with the proxy encryption mechanism. Very recently, Li et al [24] presented a flexible and fine-grained attribute-based data storage in cloud computing; however, several issues, key-unblinding, unverifiability, and high key-updating times, cannot be well addressed.…”

Section: User Revocationmentioning

confidence: 99%

“…Proxy reencryption [24] allows an entity of honest but curious proxy cloud server, using reencryption key, to transform an encrypted message under 's public key into an encrypted same message under 's public key without exposing any valuable information about .…”

Section: Proxy Reencryptionmentioning

confidence: 99%

“…Our scheme is based on flexible and fine-grained attributebased data storage [24]. In this section, we suggest an efficient CP-ABE scheme based on LSSS structure under the aforementioned DCDH assumption.…”

Section: Concrete Constructionmentioning

confidence: 99%

“…In this chapter, the performance of our system is first theoretically evaluated concerning the computational overhead of key update, decryption for DSP and user, and communication cost, and the quantitative analysis of our scheme then is given compared to previous Li et al 's scheme [24]. In Li et al 's proposed scheme [24], the private keys have not been blinded, but partially, to be delivered to the trusted third party (DSP) to transform the original ciphertext into a simple ciphertext.…”

Section: Performance Analysismentioning

confidence: 99%

See 4 more Smart Citations

Flexible and Lightweight Access Control for Online Healthcare Social Networks in the Context of the Internet of Things

Qin

Sun

Chen

et al. 2017

Mobile Information Systems

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Online healthcare social networks (OHSNs) play an essential role in sharing information among medical experts and patients who are equipped with similar experiences. To access other patients' data or experts' diagnosis anywhere and anytime, it is necessary to integrate the OHSN into the Internet as part of the Internet of Things (IoT). Therefore, it is crucial to design an efficient and versatile access control scheme that can grant and revoke a user to access the OHSN. In this paper, we propose novel attribute-based encryption (ABE) features with user revocation and verifiable decryption outsourcing to control the access privilege of the users. The security of the proposed ABE scheme is given in the well-studied random oracle model. With the proposed ABE scheme, the malicious users can be excluded from the system and the user can offload most of the overhead in the decryption to an untrusted cloud server in a verifiable manner. An access control scheme for the OHSN has been given in the context of the IoT based on the proposed ABE scheme. The simulation demonstrates that our access control mechanism is practical.

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Section: User Revocationmentioning

confidence: 99%

Section: User Revocationmentioning

confidence: 99%

Section: Proxy Reencryptionmentioning

confidence: 99%

Section: Concrete Constructionmentioning

confidence: 99%

Section: Performance Analysismentioning

confidence: 99%

See 3 more Smart Citations

Flexible and Lightweight Access Control for Online Healthcare Social Networks in the Context of the Internet of Things

Qin

Sun

Chen

et al. 2017

Mobile Information Systems

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A secure multi‐authority attribute based encryption approach for robust smart grids

Saidi,

Amira,

Nouali

2023

Concurrency and Computation

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This paper presents EMBASS, an Enhanced Multi‐Authority Attribute‐Based Encryption System for Smart Grids. EMBASS supports outsourced decryption to devices with limited resources. It also uses a proxy to add fake values to the access policy in order to protect against malicious users. Additionally, a proxy user assistant is utilized to create an intermediate key for each fog node in the decryption process, and a chain decryption technique is used to further delegate the decryption process. The security properties and performance of the proposed system are analyzed, discussed and compared to state of the art approaches. EMBASS has been discussed for usage with smart grids, and experimentation shows that it yields promising results compared to state‐of‐the‐art approaches.

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Attribute‐based online/offline signcryption scheme

Rao

2017

Int J Communication

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The efficiency of computation is one of the prime concerns in public key cryptography. The notion of online/offline framework speeds up the process of encryption and signing. In this paper, we propose the first attribute-based online/offline signcryption scheme that is able to provide fine-grained data access control with confidentiality, authenticity, signer anonymity, and public verifiability. The scheme supports large attribute universe and monotone Boolean function predicates. The size of the system public parameters in our scheme is constant, and the selective security of the scheme is realized in random oracle model. Note that, to the best of our knowledge, there is no normal attribute-based signcryption scheme satisfying all the aforementioned functionality. KEYWORDSattribute-based signcryption, large universe, online/offline framework, public verifiability, signer privacy Int J Commun Syst. 2017;30:e3322.wileyonlinelibrary.com/journal/dac

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Flexible and Fine-Grained Attribute-Based Data Storage in Cloud Computing

Cited by 261 publications

References 26 publications

Flexible and Lightweight Access Control for Online Healthcare Social Networks in the Context of the Internet of Things

Flexible and Lightweight Access Control for Online Healthcare Social Networks in the Context of the Internet of Things

A secure multi‐authority attribute based encryption approach for robust smart grids

Attribute‐based online/offline signcryption scheme

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