Selected Papers from 2022 4th International Conference on Blockchain Technology (ICBCT 2022)

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Computing and Artificial Intelligence".

Deadline for manuscript submissions: closed (30 November 2022) | Viewed by 11768

Special Issue Editors

Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: AIoT; blockchain; distributed autonomous system; cloud computing
Special Issues, Collections and Topics in MDPI journals
National Supercomputing Center in Changsha, Hunan University, Changsha 410012, China
Interests: HPC; big data; bioinformatics; AI; blockchain
School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China
Interests: blockchain; privacy computing; AI security

Special Issue Information

Dear Colleagues,

The Internet of Things (IoT) has undergone a major development recently, and it poses a unique opportunity with great potential in many application scenarios such as intelligent transportation, smart medical, smart grids, and smart cities. However, with the continuous expansion of the network scale and the intelligent development of hardware devices, traditional isolated IoT solutions may no longer satisfy advanced requirements for security and efficiency, particularly in the setting of high degree of heterogeneity of devices and complex data formats. Blockchain, as a distributed ledger with characteristics such as decentralization and traceability, has the potential to address the above problems which occur in conventional centralized IoT. Despite the advances made in convergence of blockchain and IoT, some challenges such as privacy-preserving, trust management, scalability remain to be addressed.

Hence, this Special Issue will provide both academic and industry researchers a forum to present recent advances in the fields of blockchain-enabled IoT. We encourage authors to submit original research articles, case studies, comprehensive reviews and surveys, theoretical and critical perspectives on (but not limited to) the following topics:

  • New architecture design for blockchain-enabled IoT;
  • Blockchain-based IoT trust management;
  • Blockchain-based security mechanism for IoT;
  • Blockchain-enabled applications for IoT;
  • Identity management of blockchain-based IoT;
  • Performance evaluation of blockchain-based IoT;
  • Blockchain-based IoT data management;
  • High-efficiency consensus protocol for blockchain-based IoT.

Prof. Dr. Chengnian Long
Prof. Dr. Shaoliang Peng
Prof. Dr. Zhitao Guan
Guest Editors

Manuscript Submission Information

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Published Papers (3 papers)

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Research

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16 pages, 3786 KiB  
Article
A Blockchain-Based Digital Asset Platform with Multi-Party Certification
Appl. Sci. 2022, 12(11), 5342; https://doi.org/10.3390/app12115342 - 25 May 2022
Cited by 5 | Viewed by 2230
Abstract
Assets such as warehouse receipts are important for enterprises, which can be used to pledge in supply chain finance (SCF). However, traditional pledges are performed manually, which inevitably encounters inefficiency and security problems such as multiple pledges. To improve asset security, we propose [...] Read more.
Assets such as warehouse receipts are important for enterprises, which can be used to pledge in supply chain finance (SCF). However, traditional pledges are performed manually, which inevitably encounters inefficiency and security problems such as multiple pledges. To improve asset security, we propose a blockchain-based digital asset platform (BDAP) with multi-party certification. BDAP not only has a security protocol based on the threshold ECDSA algorithm to make related participants confirm the authenticity of assets but also embeds a Verifiable Byzantine Fault Tolerant (VBFT) mechanism, randomly selecting the consensus nodes and improving the safety of the nodes. Moreover, data stored on the blockchain makes traceability possible. Through a set of experiments, we have verified the functionality and performance of BDAP. When the pressure test reaches 100 concurrent user volume, BDAP’s average response time is 1.441 s, showing a high ability to process transactions. However, now just a few open-minded banks are willing to access BDAP, it might take a long time to change the traditional perception of the participants in supply chain finance. Full article
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15 pages, 692 KiB  
Article
Efficient Cross-Chain Transaction Processing on Blockchains
Appl. Sci. 2022, 12(9), 4434; https://doi.org/10.3390/app12094434 - 27 Apr 2022
Cited by 6 | Viewed by 2472
Abstract
Blockchain has received great attention in academia and industry due to its decentralization and immutability. From the perspective of transaction processing, blockchain is a distributed shared ledger and database with the characteristics of decentralization, traceability, and transparency. These features ensure the security of [...] Read more.
Blockchain has received great attention in academia and industry due to its decentralization and immutability. From the perspective of transaction processing, blockchain is a distributed shared ledger and database with the characteristics of decentralization, traceability, and transparency. These features ensure the security of blockchain’s reliability. However, because a blockchain network requires complex consensus verification between users, it causes problems such as a high cost of data exchange and a low system throughput. Such problems are aggravated when executing a cross-chain transaction, as it is particularly important to ensure the atomicity and isolation of transactions across the blockchain. Considering this, in this paper, we propose the cross-chain transaction processing flow of EOVPC and efficient transaction processing based on version control. Different from the existing cross-chain transaction approaches based on locking, we propose optimistic approaches in which the updated data can be used immediately, with a rolling back procedure that guarantees atomicity. We conducted extensive experiments, which show that our approaches can improve the throughput and success rate significantly. Full article
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Review

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12 pages, 351 KiB  
Review
A Review of Blockchain-Based Secure Sharing of Healthcare Data
Appl. Sci. 2022, 12(15), 7912; https://doi.org/10.3390/app12157912 - 07 Aug 2022
Cited by 34 | Viewed by 5003
Abstract
Medical data contains multiple records of patient data that are important for subsequent treatment and future research. However, it needs to be stored and shared securely to protect the privacy of the data. Blockchain is widely used in the management of healthcare data [...] Read more.
Medical data contains multiple records of patient data that are important for subsequent treatment and future research. However, it needs to be stored and shared securely to protect the privacy of the data. Blockchain is widely used in the management of healthcare data because of its decentralized and tamper-proof features. In order to study the development of blockchain in healthcare, this paper evaluates it from various perspectives. We analyze blockchain-based approaches from different application scenarios. These are blockchain-based electronic medical record sharing, blockchain and the Internet of Medical Things and blockchain-based federal learning. The results show that blockchain and smart contracts have a natural advantage in the field of medical data since they are tamper-proof and traceable. Finally, the challenges and future directions of blockchain in healthcare are discussed, which can help drive the field forward. Full article
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