PRE&lt;SUP align="right"&gt;+&lt;/SUP&gt;: dual of proxy re-encryption for secure cloud data sharing service

Wang, Xu An; Xhafa, Fatos; Ma, Jianfeng; Barolli, Leonard; Ge, Yunlong

doi:10.1504/ijwgs.2018.088394

Cited by 18 publications

(2 citation statements)

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“…This scheme combines the advantageous features of CBPRE and Proxy Re-Encryption Plus (PRE + ) [23][24][25]. PRE + was initially proposed by Wang et al, utilizing distinct ephemeral random values chosen by the authorizer to achieve fine-grained sharing and non-transferability features at the message level, which are highly desirable characteristics for cloud storage scenarios [26,27].…”

Section: Related Workmentioning

confidence: 99%

Pairing-Free Certificate-Based Proxy Re-Encryption Plus Scheme for Secure Cloud Data Sharing

Yan,

Qin,

Yang

et al. 2024

Electronics

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The popularity of secure cloud data sharing is on the rise, but it also comes with significant concerns about privacy violations and data tampering. While existing Proxy Re-Encryption (PRE) schemes effectively protect data in the cloud, challenges persist with certificate administration and key escrow. Moreover, the increasing number of users and prevalence of lightweight devices demand functional and cost-effective solutions. To address these issues, this paper presents a novel Pairing-free Certificate-Based Proxy Re-Encryption Plus scheme that leverages elliptic curve groups for improved effectiveness and performance. This scheme successfully resolves challenges related to certificate management and key escrow in traditional PRE schemes, while also introducing non-transferable and message-level fine-grained control characteristics. These enhancements bolster data security during sharing and minimize the risk of malicious information leakage. Our proposed scheme’s correctness, security, and effectiveness are rigorously verified and analyzed. The results demonstrate that the scheme achieves the chosen ciphertext security in the random oracle model. Compared to current PRE schemes, our approach offers greater advantages, lower computational overhead, and enhanced suitability for practical cloud computing applications.

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Section: Related Workmentioning

confidence: 99%

Pairing-Free Certificate-Based Proxy Re-Encryption Plus Scheme for Secure Cloud Data Sharing

Yan,

Qin,

Yang

et al. 2024

Electronics

Self Cite

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“…The data owner delegated verifiability comes from the combination of the bloom filter and aggregates message authentication code. (Wang et al, , 2017(Wang et al, , 2018 have constructed a secure proxy re-encryption (PRE) based on Cramer-Shoup encryption. They have designed a secure E-health cloud system framework based on IBE.…”

Section: Privacy In the Healthcarementioning

confidence: 99%

Context-aware pseudonymization and authorization model for IoT-based smart hospitals

Zemmoudj

Bermad

Omar

2018

J Ambient Intell Human Comput

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Smart hospital is a healthcare infrastructure that uses IoT technology. This intelligent space allows to collaborate a several health actors via their IoT devices. This coordination improves the quality and continuity of health services for better patient care. However, uncontrolled access to patient information can disrupt the smooth running of hospital services. In this paper, we aim to secure the information of patient exchanged and shared, using the privacy and access control based on the context. We develop two protocols, the first is a context-aware pseudonym service. It protects the patient's personal and health information in two smart space hospital and home. Furthermore, we prevent the disclosure of the patient's location during his hospital stay. The second is an authorization and delegation protocol based on trust, context and role. It oversees the actions and interactions of health body with the smart bracelet object of patient. Our protocol uses the context to generate a set of roles with their trust values. Only one role is activated if its trust value is greater than or equal to a trust threshold. A dynamic delegation mechanism is created to better manage the interactions between health bodies. We demonstrate through the practical analysis as well as generation time overhead, storage overhead and response time requirement the efficiency and robustness of our proposed protocols.

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Secure sharing of mobile personal healthcare records using certificateless proxy re‐encryption in cloud

Bhatia

Verma

Sharma

2018

Trans Emerging Tel Tech

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The ubiquitous and timely access to personal health records help physicians to take critical decisions and save lives. Cloud computing has a potential to provide ubiquitous and on‐demand instant access to common pool of shared resources and services to various stakeholders involved in electronic healthcare industry such as patients, healthcare professionals, insurance companies, etc. The speedy evolution and adoption of cloud computing in electronic healthcare systems have inevitably raised concerns enveloping outsourced data in a myriad of safety issues. In this paper, cryptanalysis of Qin's scheme is performed breaching confidentiality of their scheme. We further proposed a lightweight and pairing free single‐hop unidirectional certificateless proxy re‐encryption scheme based on elliptic curves for secure sharing of mobile personal health records with public cloud competent for low‐power mobile devices. In certificateless proxy re‐encryption, patients encrypt the data with their public keys before outsourcing to the cloud and cloud resident semitrusted proxy further re‐encrypts into ciphertext under intended recipient's public key without learning anything about encrypted message. We prove its security through formal analysis against chosen ciphertext attack in the random oracle model. Our proposed scheme is more efficient and suitable for low‐power mobile devices in comparison with existing schemes.

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PRE<SUP align="right">+</SUP>: dual of proxy re-encryption for secure cloud data sharing service

Cited by 18 publications

References 0 publications

Pairing-Free Certificate-Based Proxy Re-Encryption Plus Scheme for Secure Cloud Data Sharing

Pairing-Free Certificate-Based Proxy Re-Encryption Plus Scheme for Secure Cloud Data Sharing

Context-aware pseudonymization and authorization model for IoT-based smart hospitals

Secure sharing of mobile personal healthcare records using certificateless proxy re‐encryption in cloud

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