BC-SABE: Blockchain-Aided Searchable Attribute-Based Encryption for Cloud-IoT

Liu, Suhui; Yu, Jiguo; Xiao, Yinhao; Wan, Zhiguo; Wang, Shengling; Yan, Biwei

doi:10.1109/jiot.2020.2993231

Cited by 113 publications

(63 citation statements)

References 36 publications

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“…It maintains effective sharing and user revocation but does not take into account the privacy leakage caused by unprocessed policies. Liu et al [ 32 ] proposed a searchable ABE scheme BC-SABE that supports user revocation and outsourcing decryption, in which the blockchain replaces the centralized server. A group of AAs completes the generation of public parameters, key management and user revocation on the blockchain.…”

Section: Related Workmentioning

confidence: 99%

“…If we calculate the update keys for each non-revoked user in the form of a list, the complexity is , where N is the number of users and R is the number of revoked users. In BT, the update keys only need to be calculated for the minimum covered nodes, the complexity is O ( NlogN / R ) [ 32 ]. The KUNode algorithm is as detailed in Algorithm 1 , where is a user binary tree, revl is the user revocation list, rejl is the user rejoin list, and and are the left and right child nodes of the node x respectively.…”

Section: Preliminariesmentioning

confidence: 99%

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A revocable attribute-based encryption EHR sharing scheme with multiple authorities in blockchain

Yang

Fan

2022

Peer-to-Peer Netw. Appl.

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With the development of digital healthcare, sharing electronic medical record data has become an indispensable part of improving medical conditions. Aiming at the centralized power caused by the single attribute authority in current CP-ABE schemes and the problem that cloud servers are curious and even malicious, we design a revocable CP-ABE EHR sharing scheme with multiple authorities (MA-RABE) in blockchain. In this solution, a group of authorities complete user attribute distribution, key generation and user management through secret sharing and transactions. Besides, we innovatively implemented a distributed one-way anonymous key agreement so that other participants cannot obtain useful information from the fully hidden policy embedded in the ciphertext. Taking into account the computational overhead of a large number of bilinear operations in the decryption process, the solution also supports the cloud server to pre-decrypt the ciphertext, and the data user only needs to perform exponentiation operation once to obtain the plaintext from the pre-decryption result. Theoretical analysis and performance evaluation show that the scheme has reliable security and lower user revocation and ciphertext update overhead.

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Section: Related Workmentioning

confidence: 99%

Section: Preliminariesmentioning

confidence: 99%

A revocable attribute-based encryption EHR sharing scheme with multiple authorities in blockchain

Yang

Fan

2022

Peer-to-Peer Netw. Appl.

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“…The attribute-based encryption (ABE) is an encryption technique widely used to ensure data security in IoV and IoT [29][30][31][32][33][34][35][36][37][38][39]. In order to provide cryptographic access control mechanism, ABE holds access control policies in the users' keys using a key-policy attribute-based encryption (KP-ABE) scheme or in the cipher-texts using a ciphertext-policy attribute-based encryption (CP-ABE) scheme [44].…”

Section: Attribute-based Encryptionmentioning

confidence: 99%

Named data networking architecture for internet of vehicles in the era of 5G

Kaci

Rachedi²

2021

Ann. Telecommun.

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Things are interconnected using information and communication technologies in smart cities, forming Internet of Things (IoT). The Internet of Vehicles (IoV) refers to an IoT application, where the urban vehicle fleet forms a worldwide network, using V2X (Vehicle-to-Everything) communications. The 5G is the new generation of cellular networks that will eliminate the bounds of bandwidth, performance, and latency limitations. IoV is one of the high-priority application domains for 5G. Among the under development IEEE Standard regarding 5G, the IEEE P1931.1 standard (named also Real-time Onsite Operations Facilitation (ROOF) Standard) seems to be very promising for IoV requirements. This paper proposes ROOFbased Named Data Vehicular Networking (RND − V n ), a named data networking (NDN) architecture for IoV. In addition to the proposal, we provide SeCrND n (Searchable Encryption for Content Retrieval in NDN), a searchable encryption technique for NDN content retrieval. Furthermore, we propose the intelligent Named Data Caching (iNDC), a machinelearning-based data caching technique for ROOF-based named data networking. The iNDC predicts the number of content requests, such that popular contents are kept as long as possible on roadside units. The proposed iNDC is also used to predict the storage capacity required by each roadside unit. A performance study was conducted to evaluate the performance of machine learning algorithms applied to iNDC. The results show that linear and ridge regressions are the most efficient in terms of content popularity prediction. To predict the capacity of new roadside units, iNDC provides better accuracy using k-Nearest Neighbors.

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“…With the help of proxy reencryption and lazy reencryption techniques, Sun et al [15] presented a revocable ABKS scheme that can delegate the search and update workload to the cloud server. Liu et al [17] proposed a searchable ABE with efficient revocation and outsourced decryption for cloud IoT. Based on online/offline encryption and outsourced decryption techniques, Miao et al [40] presented an efficient ABKS scheme in the cloud-assisted healthcare IoT system.…”

Section: 22mentioning

confidence: 99%

Privacy-Preserving Attribute-Based Keyword Search with Traceability and Revocation for Cloud-Assisted IoT

Zhang

2021

Security and Communication Networks

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With the rapid development of cloud computing and Internet of Things (IoT) technology, it is becoming increasingly popular for source-limited devices to outsource the massive IoT data to the cloud. How to protect data security and user privacy is an important challenge in the cloud-assisted IoT environment. Attribute-based keyword search (ABKS) has been regarded as a promising solution to ensure data confidentiality and fine-grained search control for cloud-assisted IoT. However, due to the fact that multiple users may have the same retrieval permission in ABKS, malicious users may sell their private keys on the Internet without fear of being caught. In addition, most of existing ABKS schemes do not protect the access policy which may contain privacy information. Towards this end, we present a privacy-preserving ABKS that simultaneously supports policy hiding, malicious user traceability, and revocation. Formal security analysis shows that our scheme can not only guarantee the confidentiality of keywords and access policies but also realize the traceability of malicious users. Furthermore, we provide another more efficient construction for public tracing.

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BC-SABE: Blockchain-Aided Searchable Attribute-Based Encryption for Cloud-IoT

Cited by 113 publications

References 36 publications

A revocable attribute-based encryption EHR sharing scheme with multiple authorities in blockchain

A revocable attribute-based encryption EHR sharing scheme with multiple authorities in blockchain

Named data networking architecture for internet of vehicles in the era of 5G

Privacy-Preserving Attribute-Based Keyword Search with Traceability and Revocation for Cloud-Assisted IoT

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