scholarly journals Data Access Control Based on Blockchain in Medical Cyber Physical Systems

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Fulong Chen ◽  
Jing Huang ◽  
Canlin Wang ◽  
Yuqing Tang ◽  
Cheng Huang ◽  
...  
Keyword(s):  
Access Control ◽  
Control Mechanism ◽  
Negative Impact ◽  
Data Access ◽  
Cyber Physical Systems ◽  
Medical Data ◽  
Physical Systems ◽  
Data Access Control ◽  
Wide Range ◽  
Access Control Mechanism

The current medical cyber physical systems involve a wide range of institutions and a large number of participants. Data sharing among distributed medical institutions is already a development trend. However, the security is worrying; e.g., the access to medical data lacks uniformity and standardization. What is more, data is easy to be tampered with and leaked. This has a very negative impact on the medical industry. Therefore, a strict and reliable access control mechanism for data in the medical cyber physical systems is a prerequisite for ensuring the implementation of modern medical functions. We deal with how to design effective access control in medical cyber physical systems. Combined with blockchain technology, we design the medical cyber physical systems based on blockchain data access control mechanism and unite data in the chain of union Fabric network resources access control. We qualitatively classify medical data, define the weight level of different data, design a medical data access framework based on blockchain, build an applicable model, formulate access control strategy, and specify the role assignment and access task matching of users, so as to achieve secure and effective data access control. The Hyperledger Fabric network is established as the alliance chain for managing access control rights distribution through smart contracts so as to achieve case-based medical data access control under the blockchain.

scholarly journals Granular Data Access Control with a Patient-Centric Policy Update for Healthcare

Sensors ◽  
2021 ◽  
Vol 21 (10) ◽  
pp. 3556
Author(s):  
Fawad Khan ◽  
Saad Khan ◽  
Shahzaib Tahir ◽  
Jawad Ahmad ◽  
Hasan Tahir ◽  
...  
Keyword(s):  
Access Control ◽  
Control Mechanism ◽  
Computational Cost ◽  
Random Oracle Model ◽  
Data Access ◽  
Physiological Data ◽  
Healthcare Applications ◽  
Data Access Control ◽  
Access Control Mechanism ◽  
Patient Centric

Healthcare is a multi-actor environment that requires independent actors to have a different view of the same data, hence leading to different access rights. Ciphertext Policy-Attribute-based Encryption (CP-ABE) provides a one-to-many access control mechanism by defining an attribute’s policy over ciphertext. Although, all users satisfying the policy are given access to the same data, this limits its usage in the provision of hierarchical access control and in situations where different users/actors need to have granular access of the data. Moreover, most of the existing CP-ABE schemes either provide static access control or in certain cases the policy update is computationally intensive involving all non-revoked users to actively participate. Aiming to tackle both the challenges, this paper proposes a patient-centric multi message CP-ABE scheme with efficient policy update. Firstly, a general overview of the system architecture implementing the proposed access control mechanism is presented. Thereafter, for enforcing access control a concrete cryptographic construction is proposed and implemented/tested over the physiological data gathered from a healthcare sensor: shimmer sensor. The experiment results reveal that the proposed construction has constant computational cost in both encryption and decryption operations and generates constant size ciphertext for both the original policy and its update parameters. Moreover, the scheme is proven to be selectively secure in the random oracle model under the q-Bilinear Diffie Hellman Exponent (q-BDHE) assumption. Performance analysis of the scheme depicts promising results for practical real-world healthcare applications.

Design and Implementation of Data Access Control Mechanism based on OLAP

2012 ◽  
Vol 19C (2) ◽  
pp. 91-98
Author(s):  
Byoung-Kuk Min ◽  
Ok-Kyung Choi ◽  
Kang-Seok Kim ◽  
Man-Pyo Hong ◽  
Hong-Jin Yeh
Keyword(s):  
Access Control ◽  
Control Mechanism ◽  
Data Access ◽  
Design And Implementation ◽  
Data Access Control ◽  
Access Control Mechanism

scholarly journals The linked medical data access control framework

2014 ◽  
Vol 50 ◽  
pp. 213-225 ◽  
Author(s):  
Eleni Kamateri ◽  
Evangelos Kalampokis ◽  
Efthimios Tambouris ◽  
Konstantinos Tarabanis
Keyword(s):  
Access Control ◽  
Data Access ◽  
Medical Data ◽  
Data Access Control ◽  
Control Framework

Emerging Cyber-Physical Systems : An Overview

2018 ◽  
pp. 306-316
Author(s):  
Okolie S.O. ◽  
Kuyoro S.O. ◽  
Ohwo O. B
Keyword(s):  
Health Care ◽  
Economic Benefit ◽  
Physical World ◽  
Cyber Physical Systems ◽  
Cyber Physical System ◽  
Economic Sectors ◽  
Strategic Research ◽  
Physical Systems ◽  
Security Issues ◽  
Wide Range

Cyber-Physical Systems (CPS) will revolutionize how humans relate with the physical world around us. Many grand challenges await the economically vital domains of transportation, health-care, manufacturing, agriculture, energy, defence, aerospace and buildings. Exploration of these potentialities around space and time would create applications which would affect societal and economic benefit. This paper looks into the concept of emerging Cyber-Physical system, applications and security issues in sustaining development in various economic sectors; outlining a set of strategic Research and Development opportunities that should be accosted, so as to allow upgraded CPS to attain their potential and provide a wide range of societal advantages in the future.

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