A Decentralizing Attribute-Based Signature for Healthcare Blockchain

Sun, Yan; Zhang, Rui; Wang, Xin; Gao, Kaiqiang; Liu, Ling

doi:10.1109/icccn.2018.8487349

Cited by 102 publications

(76 citation statements)

References 13 publications

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“…Lewko and Waters [31] presented a distributed attribute-based encryption (DABE) scheme, which can be applied to distributed networks. Inspired by [31], Sun et al [11] presented a decentralizing attribute-based signature (DABS) scheme, which is applicable to the blockchain system.…”

Section: Related Workmentioning

confidence: 99%

“…Nevertheless, scheme [10] cannot ensure the reliability of the data source, resulting in the decrease of data availability. Sun et al [11] applied an attribute-based signature (ABS) scheme to a blockchain system, which enables medical data to be shared between medical institutions and the authenticity of the data source to be verified. In this mechanism, the signer's attributes are verified and the identity of the signer is protected simultaneously.…”

Section: Introductionmentioning

confidence: 99%

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Medical Data Sharing Scheme Based on Attribute Cryptosystem and Blockchain Technology

Yang

Pei

et al. 2020

IEEE Access

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Electronic medical data have significant advantages over paper-based patient records when it comes to storage and retrieval. However, most existing medical data sharing schemes have security risks, such as being prone to data tampering and forgery, and do not support the ability to verify the authenticity of the data source. To solve these problems, we propose a medical data sharing scheme based on attribute cryptosystem and blockchain technology in this paper. First, the encrypted medical data are stored in the cloud, and the storage address and medical-related information are written into the blockchain, which can ensure efficient storage and eliminate the possibility of irreversible modification of the data. Second, the proposed scheme combines attribute-based encryption (ABE) and attribute-based signature (ABS), which achieves the sharing of medical data in many-to-many communications. The ABE achieves data privacy and fine-grained access control, and the ABS verifies the authenticity of the source of the medical data while protecting the signer's identity. Moreover, the data user outsources most of the operations of medical data ciphertext decryption to the cloud service provider (CSP), which can greatly reduce the computational burden. Finally, results of the analysis show that our scheme satisfies the requirements for confidentiality and unforgeability in the random oracle model, and that the proposed scheme offers higher computational performance than other similar schemes. INDEX TERMS Attribute-based cryptosystem, blockchain, confidentiality, electronic medical data, unforgeability.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Medical Data Sharing Scheme Based on Attribute Cryptosystem and Blockchain Technology

Yang

Pei

et al. 2020

IEEE Access

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show abstract

“…During the whole process, the privacy and security of health-care data can be assured. Furthermore, Sun et al [91] put forth an attribute-based signature scheme in decentralized health-care blockchain systems. On one hand, this scheme can verify the authenticity of health-care data and identification of the health-care data owner.…”

Section: E Health Carementioning

confidence: 99%

Blockchain for Internet of Things: A Survey

Dai

Zheng

Zhang

2019

IEEE Internet Things J.

1,015

397

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Internet of Things (IoT) is reshaping the incumbent industry to smart industry featured with data-driven decisionmaking. However, intrinsic features of IoT result in a number of challenges such as decentralization, poor interoperability, privacy and security vulnerabilities. Blockchain technology brings the opportunities in addressing the challenges of IoT. In this paper, we investigate the integration of blockchain technology with IoT. We name such synthesis of blockchain and IoT as Blockchain of Things (BCoT). This paper presents an in-depth survey of BCoT and discusses the insights of this new paradigm. In particular, we first briefly introduce IoT and discuss the challenges of IoT. Then we give an overview of blockchain technology. We next concentrate on introducing the convergence of blockchain and IoT and presenting the proposal of BCoT architecture. We further discuss the issues about using blockchain for 5G beyond in IoT as well as industrial applications of BCoT. Finally, we outline the open research directions in this promising area.

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“…In each transaction, a signature is embedded for authentication. The current technology used to generate signatures consists of single and multi-signatures (Aitzhan & Svetinovic, 2016), attribute-based signatures (Sun et al, 2018), and quantum resistance (Perlner & Cooper, 2009). The most popular hashing technique is SHA256, but there are under-researched ones including Scrypt (Sarah, 2018), Cryptonight (Hill & Bellekens, 2018), and X11 (Marshall, 2018).…”

Section: Blockchain Taxonomymentioning

confidence: 99%

Towards a blockchain-based certificate authentication system in Vietnam

Nguyen

Dao

2020

PeerJ Computer Science

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Anti-forgery information, transaction verification, and smart contract are functionalities of blockchain technology that can change the traditional business processes of IT applications. These functionalities increase the data transparency, and trust of users in the new application models, thus resolving many different social problems today. In this work, we take all the advantages of this technology to build a blockchain-based authentication system (called the Vietnamese Educational Certification blockchain, which stands for VECefblock) to deal with the delimitation of fake certificate issues in Vietnam. In this direction, firstly, we categorize and analyze blockchain research and application trends to make out our contributions in this domain. Our motivating factor is to curb fake certificates in Vietnam by applying the suitability of blockchain technology to the problem domain. This study proposed some blockchain-based application development principles in order to build a step by step VECefblock with the following procedures: designing overall architecture along with business processes, data mapping structure and implementing the decentralized application that can meet the specific Vietnamese requirements. To test system functionalities, we used Hyperledger Fabric as a blockchain platform that is deployed on the Amazon EC2 cloud. Through performance evaluations, we proved the operability of VECefblock in the practical deployment environment. This experiment also shows the feasibility of our proposal, thus promoting the application of blockchain technology to deal with social problems in general as well as certificate management in Vietnam.

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A Decentralizing Attribute-Based Signature for Healthcare Blockchain

Cited by 102 publications

References 13 publications

Medical Data Sharing Scheme Based on Attribute Cryptosystem and Blockchain Technology

Medical Data Sharing Scheme Based on Attribute Cryptosystem and Blockchain Technology

Blockchain for Internet of Things: A Survey

Towards a blockchain-based certificate authentication system in Vietnam

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