Certificateless public key encryption with equality test

Qu, Haipeng; Zhen, Yan; Lin, Xi; Zhang, Qi; Sun, Lin

doi:10.1016/j.ins.2018.06.025

Cited by 68 publications

(42 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…• Encryption algorithm: Our scheme has less computational cost than [16] and [21]. It's larger than [14] • Decryption algorithm: Our scheme has same computational cost with [16] and [21]. It's larger than [14]-Type 1.…”

Section: Computation Complexitymentioning

confidence: 99%

“…These encryption schemes have considered the outsourcing of equality tests in order to make the process more flexible when it comes to certificates management. And despite this encryption suffering from key escrow, Qu et al [21] proposed the certificateless public key encryption with equality test (CL-PKE-ET) scheme by integrating the notion of CL-PKE with PKE-ET. As of now we recognize, the equality test for heterogeneous systems has not been brought to literature yet.…”

Section: Related Workmentioning

confidence: 99%

“…Within this segment, the computation and communication costs of the proposed PKE-ET-HS scheme and the schemes in [14] [16], and [21] are compared. certificate management problems; ⨉: this property is not considered in the corresponding scheme; : this property is considered in the corresponding scheme.…”

Section: Performance Analysismentioning

confidence: 99%

“…It's smaller than [14]-Type 1. • Secret key: Our scheme has the same size as [16] and [21]. It's smaller than [14]-Type 1.…”

Section: Size and Storage Spacementioning

confidence: 99%

“…Therefore, the key generation center (KGC) has partial access to a user's decryption key, ensuring it does not have access to a user's data. By incorporating the idea of PKE-ET and the certificateless public key encryption (CL-PKE), Qu et al [21] proposed the notion of certificateless public key encryption with equality test (CL-PKE-ET). The CL-PKE-ET scheme is constructed under the CLC cryptosystem.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Public Key Encryption with Equality Test for Heterogeneous Systems in Cloud Computing

Elhabob¹,

Zhao²,

Sella³

et al. 2019

KSII TIIS

View full text Add to dashboard Cite

Cloud computing provides a broad range of services like operating systems, hardware, software and resources. Availability of these services encourages data owners to outsource their intensive computations and massive data to the cloud. However, considering the untrusted nature of cloud server, it is essential to encrypt the data before outsourcing it to the cloud. Unfortunately, this leads to a challenge when it comes to providing search functionality for encrypted data located in the cloud. To address this challenge, this paper presents a public key encryption with equality test for heterogeneous systems (PKE-ET-HS). The PKE-ET-HS scheme simulates certificateless public encryption with equality test (CLE-ET) with the identity-based encryption with equality test (IBE-ET). This scheme provides the authorized cloud server the right to actuate the equivalence of two messages having their encryptions performed under heterogeneous systems. Basing on the random oracle model, we construct the security of our proposed scheme under the bilinear Diffie-Hellman (BDH) assumption. Eventually, we evaluate the size of storage, computation complexities, and properties with other related works and illustrations indicate good performance from our scheme.

show abstract

Section: Computation Complexitymentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Performance Analysismentioning

confidence: 99%

“…It's smaller than [14]-Type 1. • Secret key: Our scheme has the same size as [16] and [21]. It's smaller than [14]-Type 1.…”

Section: Size and Storage Spacementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Public Key Encryption with Equality Test for Heterogeneous Systems in Cloud Computing

Elhabob¹,

Zhao²,

Sella³

et al. 2019

KSII TIIS

View full text Add to dashboard Cite

show abstract

A Revocable Certificateless Encryption Scheme for Multi‐User

Mou,

Deng,

Ruan

2024

Concurrency and Computation

View full text Add to dashboard Cite

Certificateless cryptography, which solves the key escrow problem and avoids the complexity of certificate management, is an important part of public key cryptography. In the multi‐user scenarios, broadcast encryption can improve computational efficiency and reduce communication cost. Moreover, there may be some malicious users in the above scenarios, and the decryption permissions of these users need an effective mechanism to revoke them. In this paper, a revocable certificateless encryption scheme for multi‐user (RCLE‐MU) is proposed to address this issue. In the scheme, the Cloud Server Provider (CSP) utilizes the master time key to periodically generate time keys for legitimate users. For illegitimate users, their decryption privileges are revoked since they are unable to obtain the time keys. Then this new scheme is proved to be ciphertext indistinguishable under selected identity and chosen‐ciphertext attacks (sID‐CCAs). Finally, compared with several other schemes, the new scheme has more efficiency advantage. So it is suitable for multi‐user scenarios.

show abstract

An efficient certificateless public key encryption with equality test toward Internet of Vehicles

Zhao

Hou

Chen

et al. 2019

Trans Emerging Tel Tech

View full text Add to dashboard Cite

With the rapid development of the Internet of Vehicles, a great amount of vehicles are connected to Internet of Vehicles environment. These vehicles can exchange data to each other and upload the data to a cloud server for backup. Since the data contains some sensitive information, it is necessary to encrypt the data before uploading to the cloud server. However, this method severely hampers the utilization of data because of the tremendous difficulty in the search for encrypted data. For addressing the above issue, we propose a novel certificateless public key encryption supporting the equality test on ciphertexts that are performed by the cloud server while revealing nothing about the corresponding plaintexts. Our scheme has proved to be secure in bilinear Diffie‐Hellman assumption under the model of random oracle. At the same time, both theoretical analysis and experimental evaluation indicate the security, efficiency, as well as effectiveness of the proposed scheme.

show abstract

Certificateless public key encryption with equality test

Cited by 68 publications

References 12 publications

Public Key Encryption with Equality Test for Heterogeneous Systems in Cloud Computing

Public Key Encryption with Equality Test for Heterogeneous Systems in Cloud Computing

A Revocable Certificateless Encryption Scheme for Multi‐User

An efficient certificateless public key encryption with equality test toward Internet of Vehicles

Contact Info

Product

Resources

About