Authorized Equality Test on Identity-Based Ciphertexts for Secret Data Sharing via Cloud Storage

Li, Hongbo; Huang, Qiong; Ma, Sha; Shen, Jian; Susilo, Willy

doi:10.1109/access.2019.2899680

Cited by 33 publications

(19 citation statements)

References 28 publications

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“…Table 3 and Figure 4 display the time consumed during the Encryption and Decryption algorithms for the AET-IBC scheme compared with other's scheme. It can be seen that our scheme achieve better performance than 19,24,25 in terms of Encryption and Decryption. This is because our proposed scheme is free from pairing operations during the encryption phase as well as it requires less pairing during decryption phase.…”

Section: Computation Costmentioning

confidence: 91%

“…Table 3 and Figure 5 present the time consume during the authorization and test phases. For the Type-2 and Type-3 authorizations, our scheme has a lower cost than, 24,25 whereas it is slightly higher than. 19 However, we still achieve lower computation costs than 19,24,25 in terms of Type-4 authorization and Test i (1 ≤ i ≤ 4), due to less pairing operations.…”

Section: Computation Costmentioning

confidence: 92%

“…23 However, the scheme provides only user-level authorization, where the server has permission to check overall ciphertexts for a given user's trapdoor. 4 Recently, Li et al 24 designed an IBE-ET-FA scheme supporting four authorization methods. The scheme enables users to perform the equivalence test with different levels of permission.…”

Section: Related Workmentioning

confidence: 99%

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An authorized equality test on identity‐based cryptosystem for mobile social networking applications

Hassan

Elhabob

Eltayieb

et al. 2021

Trans Emerging Tel Tech

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The widespread adoption of social network applications and smart mobile devices has yielded a massive amount of data transmitted through the networks. Fortunately, social network service providers offer a wide range of storage capacity and data management functionality. Accordingly, the data can be uploaded to the social servers for processing and then accessible elsewhere.Nevertheless, considering the untrusted nature of the social servers, it becomes crucial to protect the data before uploading it to the server. Unfortunately, encryption incurs another severe problem in providing search functionality on encrypted data stored on the server. In addition, most of the existing solutions are inefficient to deploy on mobile devices due to the limited resources and computing capabilities. To address this issue, we propose an authorized equality test on identity-based cryptosystem (AET-IBC) scheme in this article. The scheme allows the server to test if two different ciphertexts encapsulate the same message. Besides, it supports different authorization methods to enhance the privacy. Furthermore, based on the random oracle model, we prove the security of the proposed scheme to be equivalent to the modified bilinear Diffie-Hellman intractable assumption. Finally, the efficiency analysis shows that the AET-IBC scheme is practicable and convenient for mobile social networking applications.

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Section: Computation Costmentioning

confidence: 91%

Section: Computation Costmentioning

confidence: 92%

See 1 more Smart Citation

An authorized equality test on identity‐based cryptosystem for mobile social networking applications

Hassan

Elhabob

Eltayieb

et al. 2021

Trans Emerging Tel Tech

View full text Add to dashboard Cite

show abstract

“…In order to solve the problem of certificate management, [16]- [20] proposed schemes of identity-based encryption with equality test (IBEET) by combining PKEET and IBE. Besides, [21]- [24] proposed schemes of attribute-based encryption with equality test (ABEET) in order to achieve more flexible authorization, which is a combination of PKEET and ABE.…”

Section: B Related Work 1) Pkeetmentioning

confidence: 99%

Public Key Authenticated Encryption With Designated Equality Test and its Applications in Diagnostic Related Groups

Wang

Huang

et al. 2019

IEEE Access

Self Cite

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Due to the massive growth of data and security concerns, data of patients would be encrypted and outsourced to the cloud server for feature matching in various medical scenarios, such as personal health record systems, actuarial judgments and diagnostic related groups. Public key encryption with equality test (PKEET) is a useful utility for encrypted feature matching. Authorized tester could perform data matching on encrypted data without decrypting. Unfortunately, due to the limited terminology in medicine, people within institutions may illegally use data, trying to obtain information through traversal methods. In this paper we propose a new PKEET notion, called public-key authenticated encryption with designated equality test (PKAE-DET), which could resist this kind of attacks launched by an inside adversary, known as offline message recovery attacks (OMRA). We propose a concrete construction of PKAE-DET, which only requires one single server to perform the feature matching job securely, and does not require any group mechanism. We prove its security based on some simple mathematical assumptions. Experimental results show that our scheme has efficiency comparable with those PKEET schemes which do not resist OMRA attacks or require group mechanism. We further show how our scheme could be effectively used in diagnostic related groups in medicine, demonstrating its practicability. INDEX TERMS Public key encryption, equality test, message recovery attack, cloud storage, data sharing.

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“…Only when a set of conditions is satisfied can ciphertext conversion be performed. Li et al [36] introduced a novel identity-based encryption to implement a secret sharing scheme that supports decrypting two ciphertexts by different keys. This work has solved the problem of third party access rights’ control in the cloud server.…”

Section: Related Workmentioning

confidence: 99%

A Fine-Grained User-Divided Privacy-Preserving Access Control Protocol in Smart Watch

Fang

Zhou

et al. 2019

Sensors

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A smart watch is a kind of emerging wearable device in the Internet of Things. The security and privacy problems are the main obstacles that hinder the wide deployment of smart watches. Existing security mechanisms do not achieve a balance between the privacy-preserving and data access control. In this paper, we propose a fine-grained privacy-preserving access control architecture for smart watches (FPAS). In FPAS, we leverage the identity-based authentication scheme to protect the devices from malicious connection and policy-based access control for data privacy preservation. The core policy of FPAS is two-fold: (1) utilizing a homomorphic and re-encrypted scheme to ensure that the ciphertext information can be correctly calculated; (2) dividing the data requester by different attributes to avoid unauthorized access. We present a concrete scheme based on the above prototype and analyze the security of the FPAS. The performance and evaluation demonstrate that the FPAS scheme is efficient, practical, and extensible.

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Authorized Equality Test on Identity-Based Ciphertexts for Secret Data Sharing via Cloud Storage

Cited by 33 publications

References 28 publications

An authorized equality test on identity‐based cryptosystem for mobile social networking applications

An authorized equality test on identity‐based cryptosystem for mobile social networking applications

Public Key Authenticated Encryption With Designated Equality Test and its Applications in Diagnostic Related Groups

A Fine-Grained User-Divided Privacy-Preserving Access Control Protocol in Smart Watch

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