Practical traceable multi-authority CP-ABE with outsourcing decryption and access policy updation

Sethi, Kamalakanta; Pradhan, Ankit; Bera, Padmalochan

doi:10.1016/j.jisa.2019.102435

Cited by 42 publications

(74 citation statements)

References 24 publications

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“…On the one hand, for the communication cost, we can draw the following conclusions: Firstly, our scheme has the advantages in the length of the private key that our scheme supports big attribute universe. More precisely, the public key of our scheme does not increase linearly with the size of the attribute domain in an attribute authority, while that of the YLMH scheme will, and the storage occupied by our public key is smaller than that of the SPB scheme [32] and the ZLML scheme. Secondly, although the user's private keys in the YB scheme and the YLMH scheme are relatively small, none of these schemes support traceability.…”

Section: 1mentioning

confidence: 96%

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Multiauthority Attribute-Based Encryption with Traceable and Dynamic Policy Updating

Ling

Chen

Gan

2021

Security and Communication Networks

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Ciphertext policy attribute-based encryption (CP-ABE) is an encryption mechanism that can provide fine-grained access control and adequate cloud storage security for Internet of Things (IoTs). In this field, the original CP-ABE scheme usually has only a single trusted authority, which will become a bottleneck in IoTs. In addition, different users may illegally share their private keys to obtain improper benefits. Besides, the data owners also require the flexibility to change their access policy. In this paper, we construct a multiauthority CP-ABE scheme on prime order groups over a large attribute universe. Our scheme can support white-box traceability along with policy updates to solve the abovementioned three problems and, thus, can fix the potential requirements of IoTs. More precisely, the proposed scheme supports multiple authority, white box traceability, large attribute domains, access policy updates, and high expressiveness. We prove that our designed scheme is static secure and traceable secure based on the state-of-the-art security models. Moreover, by theoretical comparison, our scheme has better performance than other schemes. Finally, extensive experimental comparisons show that our proposed algorithm can be better than the baseline algorithms.

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Section: 1mentioning

confidence: 96%

“…YB [11] SPB [32] YLMH [30] ZLML [31] Ours AA's public key attributes. is is because each attribute in the user's private key must be calculated accordingly.…”

Section: Experimental Analysismentioning

confidence: 99%

Multiauthority Attribute-Based Encryption with Traceable and Dynamic Policy Updating

Ling

Chen

Gan

2021

Security and Communication Networks

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“…Recently, the proposal in [20] has realized multiauthority CP-ABE with large attribute universe and white-box traceability, while the ability of user tracing is limited and just suitable for certain scenarios. e multiauthority CP-ABE scheme [21] highlights the efficiency in traceable decentralized CP-ABE scheme, while it also suffers from the same drawback with [20].…”

Section: Attribute-based Encryptionmentioning

confidence: 99%

Blockchain-Based Fine-Grained Data Sharing for Multiple Groups in Internet of Things

Teng

Zhang

Lin

et al. 2021

Security and Communication Networks

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Cloud-based Internet of Things, which is considered as a promising paradigm these days, can provide various applications for our society. However, as massive sensitive and private data in IoT devices are collected and outsourced to cloud for data storage, processing, or sharing for cost saving, the data security has become a bottleneck for its further development. Moreover, in many large-scale IoT systems, multiple group data sharing is practical for users. Thus, how to ensure data security in multiple group data sharing remains an open problem, especially the fine-grained access control and data integrity verification with public auditing. Therefore, in this paper, we propose a blockchain-based fine-grained data sharing scheme for multiple groups in cloud-based IoT systems. In particular, we design a novel multiauthority large universe CP-ABE scheme to guarantee the fine-grained access control and data integrity across multiple groups by integrating group signature into our scheme. Moreover, to ease the need for a trusted third auditor in traditional data public auditing schemes, we introduce blockchain technique to enable a distributed data public auditing. In addition, with the group signature, our scheme also realizes anonymity and traitor tracing. The security analysis and performance evaluation show that our scheme is practical for large-scale IoT systems.

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“…For example, when a data owner intends to share the data with a targeted data consumer holding the attribute "Professor" from a university and the attribute "Engineer" from a research institution, obviously SA-ABE scheme can not be applied to this scenario. To deal with this problem, many researchers [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] turn to multi-authority attribute-based encryption (MA-ABE), so that secret keys of attributes are issued to data consumers with the corresponding privileges for different attribute authorities respectively. There exists two kinds of multi-authority ABE schemes, namely centralized multi-authority ABE and decentralized multi-authority ABE, the difference between them is whether the key is distributed by center authority.…”

Section: Introductionmentioning

confidence: 99%

“…When the key is distributed by central authority, we can consider it as centralized multi-authority ABE scheme [10]. When the key is distributed by attribute authority, we can consider it as decentralized multi-authority ABE scheme [2][3][4][5][6][7][8][9][11][12][13][14][15][16][17][18][19][20][21][22][23][25][26].…”

Section: Introductionmentioning

confidence: 99%

Efficient Revocable Multi-Authority Attribute-Based Encryption for Cloud Storage

Yang

Wang

2021

IEEE Access

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As is known, attribute-based encryption (ABE) is usually adopted for cloud storage, both for its achievement of fine-grained access control over data, and for its guarantee of data confidentiality. Nevertheless, single-authority attribute-based encryption (SA-ABE) has its obvious drawback in that only one attribute authority can assign the users' attributes, enabling the data to be shared only within the management domain of the attribute authority, while rendering multiple attribute authorities unable to share the data. On the other hand, multi-authority attribute-based encryption (MA-ABE) has its advantages over SA-ABE. It can not only satisfy the need for the fine-grained access control and confidentiality of data, but also make the data shared among different multiple attribute authorities. However, existing MA-ABE schemes are unsuitable for the devices with resources-constraint, because these schemes are all based on expensive bilinear pairing. Moreover, the major challenge of MA-ABE scheme is attribute revocation. So far, many solutions in this respect are not efficient enough. In this paper, on the basis of the elliptic curves cryptography, we propose an efficient revocable multi-authority attribute-based encryption (RMA-ABE) scheme for cloud storage. The security analysis indicates that the proposed scheme satisfies indistinguishable under adaptive chosen plaintext attack assuming hardness of the decisional Diffie-Hellman problem. Compared with the other schemes, the proposed scheme gets its advantages in that it is more economical in computation and storage.

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Practical traceable multi-authority CP-ABE with outsourcing decryption and access policy updation

Cited by 42 publications

References 24 publications

Multiauthority Attribute-Based Encryption with Traceable and Dynamic Policy Updating

Multiauthority Attribute-Based Encryption with Traceable and Dynamic Policy Updating

Blockchain-Based Fine-Grained Data Sharing for Multiple Groups in Internet of Things

Efficient Revocable Multi-Authority Attribute-Based Encryption for Cloud Storage

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