Group ID-Based Encryption with Equality Test

Ling, Yunhao; Ma, Sha; Huang, Qiong; Xiang, Ru; Li, Ximing

doi:10.1007/978-3-030-21548-4_3

Cited by 18 publications

(10 citation statements)

References 23 publications

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“…In addition, their strategy featured a key-isolating technique to reduce the likelihood of key exposure. Paper [20] have recently developed a broad strategy for achieving security in the SM for PKEET that may also be applied to the IBEET scheme.…”

Section: Literature Reviewmentioning

confidence: 99%

Enhanced Security for Large-Scale 6G Cloud Computing: A Novel Approach to Identity based Encryption Key Generation

Rathinam

Balamurugan

Arulkumar

et al. 2023

JMC

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Cloud computing and 6G networks are in high demand at present due to their appealing features as well as the security of data stored in the cloud. There are various challenging methods that are computationally complicated that can be used in cloud security. Identity-based encryption (IBE) is the most widely used techniques for protecting data transmitted over the cloud. To prevent a malicious attack, it is an access policy that restricts access to legible data to only authorized users. The four stages of IBE are setup, key extraction or generation, decryption and encryption. Key generation is a necessary and time-consuming phase in the creation of a security key. The creation of uncrackable and non-derivable secure keys is a difficult computational and decisional task. In order to prevent user identities from being leaked, even if an opponent or attacker manages to encrypted material or to decode the key this study presents an advanced identity-based encryption technique with an equality test. The results of the experiments demonstrate that the proposed algorithm encrypts and decrypts data faster than the efficient selective-ID secure IBE strategy, a competitive approach. The proposed method's ability to conceal the identity of the user by utilizing the Lagrange coefficient, which is constituted of a polynomial interpolation function, is one of its most significant aspects.

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Section: Literature Reviewmentioning

confidence: 99%

Enhanced Security for Large-Scale 6G Cloud Computing: A Novel Approach to Identity based Encryption Key Generation

Rathinam

Balamurugan

Arulkumar

et al. 2023

JMC

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“…As both server could not check ciphertext and trapdoor independently, this construction could resist IKGA. On the other side, various works have been proposed to overcome OMRA [10], [31], [32]. Similar with [29], [30], Tang and Ling improved PKEET with supporting of finegrained authorization [15] and flexible authorization [33] respectively, whose dual-server construction could also resist OMRA.…”

Section: A Related Workmentioning

confidence: 99%

Plaintext-Verifiably-Checkable Encryption and Its Extension in Dual-Server Setting

Zhong

Huang

2020

IEEE Access

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Plaintext-checkable encryption (PCE), first introduced by Canard et al. [1], allows users searching on encrypted data through plaintexts. It provides a useful primitive in the cloud computing security. However, existing PCE schemes could not guarantee verifiability to prevent from malicious adversaries. To concentrate with, we provide the notion of plaintext-verifiably-checkable encryption (PVCE). Our PVCE scheme could check that if a ciphertext is valid, even though it could pass the check procedure, to avoid malicious ciphertexts. Furthermore, we extend the work in dual-server setting, called dual-server plaintext-verifiably-checkable encryption (DS-PVCE), to resist offline message recover attack. We also give the security definition IND-CCA-FS, IND-CCA-BS and IND-CCA-BS-II in standard model for DS-PVCE and prove that DS-PVCE is secure under these security notions. Then we give constructions of PVCE and DS-PVCE from pairing-friendly smooth projective hash function (PF-SPHF) and their instantiations based on k-MDDH assumption. At the end of this paper, we provide implementation to compare existing PCE schemes and our schemes, which shows that DS-PVCE has very high check efficiency compared with other PCE schemes. INDEX TERMS Plaintext-checkable encryption, verifiability, pairing-friendly smooth projective hash function, dual-server, offline message recover attack, k-MDDH assumption.

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“…It assumes that the servers do not collude and requires additional communication between the servers. Relatively, [27], [28] proposed to share a secret among group members only with which can a member generate a valid ciphertext legally. It is more efficient than the aforementioned dual-server schemes.…”

Section: B Related Work 1) Pkeetmentioning

confidence: 99%

“…It is worth noting that the schemes with group mechanism, e.g. G-IBEET [28], need to create a group for each comparison and set up group administrator, which reduces the operability of the scheme. Although G-IBEET scheme seems to be more computationally efficient, users need to encrypt the data multiple times for comparing with different users, which is inconvenient in practice.…”

Section: Proof Of Lemmamentioning

confidence: 99%

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

Wang

Huang

et al. 2019

IEEE Access

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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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Group ID-Based Encryption with Equality Test

Cited by 18 publications

References 23 publications

Enhanced Security for Large-Scale 6G Cloud Computing: A Novel Approach to Identity based Encryption Key Generation

Enhanced Security for Large-Scale 6G Cloud Computing: A Novel Approach to Identity based Encryption Key Generation

Plaintext-Verifiably-Checkable Encryption and Its Extension in Dual-Server Setting

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

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