Blockchain Papers

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3,895 papersLast indexed Aug 31, 2026
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Jun 1, 2022·Advances in Science Technology and Engineering Systems Journal
1 cites
Secured Multi-Layer Blockchain Framework for IoT Aggregate Verification

Ming Fong Sie, Jingze Wu, Seth Austin Harding, Chien-Lung Lin · 6 authors

Technologies designed for digital provenance, especially the Internet of Things (IoT) and blockchain, may allow for security, transparency, and traceability in the global supply chain. However, upstream nodes in the supply chain that work for large-scale production suppliers are not considered. In addition, most IoT blockchain systems adopt an ID-based signature scheme that may affect the efficiency of IoT devices. We propose using aggregate verification to improve the security and efficiency of ID-based verification, reduce network traffic on the blockchain, and transfer computing overhead to aggregator nodes. This paper implements a multi-layer blockchain for Agriculture 4.0 supply chain management that has higher efficiency, effectiveness, and security in comparison to conventional blockchains. We design a Multi-Layer Aggregate Verification (MLAV) solution to improve supply chain management with IoT Blockchain for Agriculture 4.0 through the following methods. First, we use a multi-layer IoT blockchain system to reduce Ethereum gas fee. Second, we design an ID-based Aggregate Verification scheme, thereby eliminating the certificate management cost in the traditional Public Key Infrastructure (PKI) and reducing bandwidth and computation time requirements. Third, we implement a three-layer blockchain infrastructure. In Layer 1, IoT devices sense and upload data to the system's database; in Layer 2, smart contracts execute aggregate ID-based signature verification from IoT devices and upload the transactions to the private blockchain; in Layer 3, a batch converts the layer 2 data and uploads its Merkle root to Ethereum, thereby reducing the required gas fee.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Advanced Steganography and Watermarking Techniques
Original source
Jun 1, 2022·IEEE Systems Journal
34 cites
Implementation of a Secure LoRaWAN System for Industrial Internet of Things Integrated With IPFS and Blockchain

Md. Shahjalal, Md. Mainul Islam, Md Morshed Alam, Yeong Min Jang

Low-power, low-cost, and long-range connectivity for the Industrial Internet of Things (IIoT) networks are the key stipulations, nowadays. However, implementing a cost-effective, flexible, and feasible system considering server and networking security is still an open challenge. In this article, a complete end-to-end long-range wide area network (LoRaWAN) system has been demonstrated by implementing blockchain-based secure distributed data management, which is applicable in various secure IIoT applications. Dynamic data collected by multiple LoRa sensors are encrypted in a LoRa server, and the encrypted content is automatically stored in the InterPlanetary file system (IPFS) to ensure data confidentiality, integrity, and availability. To achieve data consistency, the content IDs collected from the IPFS are stored in the quorum blockchain with consortium setup using a smart contract. The consortium network is maintained by the Raft consensus algorithm employing seven nodes. The design architecture of the hardware used for both LoRa transmitting node and gateway has been described in comprehensive manners. The performance of the LoRaWAN system is analyzed by the received signal strength indicator, the communications range, and packet loss rate metrics in both line-of-sight and nonline-of-sight test systems. The data management scheme is implemented in Python, and the performance is evaluated in terms of transaction time and block size.

Open access
IoT Networks and Protocols
IoT and Edge/Fog Computing
Wireless Body Area Networks
Original source
Jun 1, 2022·2022 20th Mediterranean Communication and Computer Networking Conference (MedComNet)
13 cites
LASII: Lightweight Authentication Scheme using IOTA in IoT Platforms

Mohammed El‐Hajj, Hassan Jradi, Maroun Chamoun, Ahmad Fadlallah

Internet of Things (IoT) has emerged as a key technology with a large spectrum of applications in various fields. However, it still faces several security challenges, in particular authentication-related challenges. Efficient “traditional” authentication solutions are often centralized, which cannot meet all the IoT requirements, especially in term of scalability. This paper proposes a new authentication scheme using the promising distributed ledger technology “IOTA” and the Masked Authenticated Messaging module. The proposed scheme is implemented, simulated and compared to other existing schemes. Its effectiveness is evaluated according to the IoT requirements. The implementation was done In IOTA v1 where IRI played an important role as a coordinator to verify transactions and interact with client library, in the next publication IOTA v2 will be implemented benefiting from Coordicide with the elimination of the coordinator in order to provide a benchmark showing the differences between IOTA v1 and IOTA v2.

Open access
Blockchain Technology Applications and Security
User Authentication and Security Systems
IoT and Edge/Fog Computing
Original source
Jun 1, 2022·International Journal of Geoheritage and Parks
99 cites
Gemiverse: The blockchain-based professional certification and tourism platform with its own ecosystem in the metaverse

Dongying Wei

The traditional tourism industry is facing severe challenges and it urgently needs digital technology to improve the quality of service experience and storage security. Blockchain, as an emerging technology, brings new opportunities to the tourism industry as it provides a trusted platform for travel companies and tourists. This paper aims to address the challenges and for a real-world prototype development, it has proposed Gemiverse, a blockchain-based professional certification and travel platform that offers specialized solutions to meet challenges and focuses on building immersive experiences. Finally, three development stages of Gemiverse and conduct scene application tests is proposed.

Open access
Virtual Reality Applications and Impacts
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Original source
Jun 1, 2022·Computer Systems Science and Engineering
16 cites
Hybrid Smart Contracts for Securing IoMT Data

D. Palanikkumar, Adel Fahad Alrasheedi, Pavithra Parthasarathi, S. S. Askar · 5 authors

Data management becomes essential component of patient healthcare. Internet of Medical Things (IoMT) performs a wireless communication between E-medical applications and human being. Instead of consulting a doctor in the hospital, patients get health related information remotely from the physician. The main issues in the E-Medical application are lack of safety, security and privacy preservation of patient’s health care data. To overcome these issues, this work proposes block chain based IoMT Processed with Hybrid consensus protocol for secured storage. Patients health data is collected from physician, smart devices etc. The main goal is to store this highly valuable health related data in a secure, safety, easy access and less cost-effective manner. In this research we combine two smart contracts such as Practical Byzantine Fault Tolerance with proof of work (PBFT-PoW). The implementation is done using cloud technology setup with smart contracts (PBFT-PoW). The accuracy rate of PBFT is 90.15%, for PoW is 92.75% and our proposed work PBFT-PoW is 99.88%.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Retinal Imaging and Analysis
Original source
May 31, 2022·Research Square
1 cites
AuthROS: A Secure and Convenient Framework for Data Sharing among Robot Operating Systems (ROS)

Shenhui Zhang, Songjing Tao, Xiulai Li, Shuang Wu · 8 authors

Abstract Robot Operating System (ROS) has brought great potential for automation in all fields involved in production activities, which greatly improves productivity and simplifies operations that belonged to humans originally. However, ROS is highly dependent on communication but lacks secure data sharing mechanisms. Therefore, when it comes to multi-robots interaction scenarios, there are severe challenges in ensuring the safe and trustworthy exchange of specified confidential data among multi-robots. The reliability of data also needs to be considered carefully. This paper proposes a solution to this problem based on blockchain technology. We present a general secure and convenient authorization framework named AuthROS for ROS nodes with absolute security and high availability based on private Ethereum network and SM algorithms. This framework is capable of meeting the requirements for immutability and security of confidential data exchange in nodes of ROS of any size. An authority granting and identity identifying mechanism is proposed and integrated into the Ethereum smart contract to execute atomically to ensure the trustworthiness exchange of data and no third-party participation. At the same time, a key exchange based on SM2 and plaintext encryption mechanism based on SM4 is proposed to ensure the data transmission security. Furthermore, a data digest uploading scheme is adopted to improve the efficiency of querying and data uploading to the Ethereum network. Based on all of mechanisms mentioned above, AuthROS can play a role in the scenario where data transmitted among robots need to be recorded and maintain immobility. Experimental results demonstrated that AuthROS is equipped with excellent security, good time performance along with Nodes Forging resistance. We believe that AuthROS is the first secure data sharing framework for Robots loaded with ROS. We open sourced AuthROS at https://github.com/RobAI-Lab/ROS-Chain.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Organ Donation and Transplantation
Original source
May 31, 2022·Sensors
37 cites
Blockchain for Future Wireless Networks: A Decade Survey

Tejal Rathod, Nilesh Kumar Jadav, Mohammad Dahman Alshehri, Sudeep Tanwar · 7 authors

The emerging need for high data rate, low latency, and high network capacity encourages wireless networks (WNs) to build intelligent and dynamic services, such as intelligent transportation systems, smart homes, smart cities, industrial automation, etc. However, the WN is impeded by several security threats, such as data manipulation, denial-of-service, injection, man-in-the-middle, session hijacking attacks, etc., that deteriorate the security performance of the aforementioned WN-based intelligent services. Toward this goal, various security solutions, such as cryptography, artificial intelligence (AI), access control, authentication, etc., are proposed by the scientific community around the world; however, they do not have full potential in tackling the aforementioned security issues. Therefore, it necessitates a technology, i.e., a blockchain, that offers decentralization, immutability, transparency, and security to protect the WN from security threats. Motivated by these facts, this paper presents a WNs survey in the context of security and privacy issues with blockchain-based solutions. First, we analyzed the existing research works and highlighted security requirements, security issues in a different generation of WN (4G, 5G, and 6G), and a comparative analysis of existing security solutions. Then, we showcased the influence of blockchain technology and prepared an exhaustive taxonomy for blockchain-enabled security solutions in WN. Further, we also proposed a blockchain and a 6G-based WN architecture to highlight the importance of blockchain technology in WN. Moreover, the proposed architecture is evaluated against different performance metrics, such as scalability, packet loss ratio, and latency. Finally, we discuss various open issues and research challenges for blockchain-based WNs solutions.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Internet of Things and AI
Original source
May 30, 2022·Applied Sciences
23 cites
Possible Blockchain Solutions According to a Smart City Digitalization Strategy

Ivica Lukić, Kruno Miličević, Mirko Köhler, Davor Vinko

With advances in Information and Communication Technologies (ICT) in convergence with blockchain technology, cities have been given the opportunity to improve their services, efficiently use resources, and, thus, become Smart Cities. The main properties of blockchain technology like decentralization, immutability, transparency, consensus, and robustness are qualities needed for Smart City. In this paper, we propose a digitalization strategy for the City of Osijek. Smart City digitalization strategy aims to solve problems of emerging urbanization, improve administration by reducing energy and water consumption, carbon emissions, pollution, and city waste management. To develop an information system based on blockchain technology, the administration structure and the current state of information systems are analyzed, and new solutions are presented.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Smart Cities and Technologies
Original source
May 30, 2022·International Journal of Advanced Research in Science Communication and Technology
0 cites
Blockchain-Driven Supply Chain Visibility with .Net and Azure Confidential Ledger: Design and Implementation Strategies

Dheerendra Yaganti

The growing demand for transparency and trust in supply chain systems has accelerated the adoption of decentralized technologies capable of delivering tamper-proof and verifiable transaction histories. This paper presents a blockchain-integrated framework built on .NET and Azure Confidential Ledger to enhance supply chain visibility and traceability across distributed logistics networks. The proposed system leverages the immutability of blockchain and the confidentiality guarantees of trusted execution environments to securely record and validate every logistical event—from procurement to final delivery—without exposing sensitive operational data. By integrating Azure Confidential Ledger with ASP.NET Core microservices, the framework ensures secure data logging and access control while maintaining compatibility with enterprise-grade identity and authorization mechanisms. Data is ingested through RESTful APIs and processed using Entity Framework Core for transactional integrity. A modular architecture allows easy extension into existing logistics platforms while providing real-time dashboards and alerting via SignalR and Power BI. Experimental evaluation demonstrates the system’s efficiency in handling concurrent events, maintaining low latency, and preventing unauthorized data modifications. This study offers a scalable and privacy-preserving design pattern for organizations aiming to modernize supply chain management using blockchain technology in secure cloud environments, establishing a foundation for future innovations in decentralized logistics infrastructure

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Supply Chain and Inventory Management
Original source
May 30, 2022·Computational Intelligence and Neuroscience
48 cites
Blockchain-Based Decentralized Cloud Solutions for Data Transfer

Rajit Nair, Syed Nasrullah, P. Vinayasree, Prabhdeep Singh · 7 authors

Cloud computing has increased its service area and user experience above traditional platforms through virtualization and resource integration, resulting in substantial economic and societal advantages. Cloud computing is experiencing a significant security and trust dilemma, requiring a trust-enabled transaction environment. The typical cloud trust model is centralized, resulting in high maintenance costs, network congestion, and even single-point failure. Also, due to a lack of openness and traceability, trust rating findings are not universally acknowledged. "Blockchain is a novel, decentralised computing system. Its unique operational principles and record traceability assure the transaction data's integrity, undeniability, and security. So, blockchain is ideal for building a distributed and decentralised trust infrastructure. This study addresses the difficulty of transferring data and related permission policies from the cloud to the distributed file systems (DFS). Our aims include moving the data files from the cloud to the distributed file system and developing a cloud policy. This study addresses the difficulty of transferring data and related permission policies from the cloud to the DFS. In DFS, no node is given the privilege, and storage of all the data is dependent on content-addressing. The data files are moved from Amazon S3 buckets to the interplanetary file system (IPFS). In DFS, no node is given the privilege, and storage of all the data is dependent on content-addressing.

Open access
Blockchain Technology Applications and Security
Cloud Data Security Solutions
IoT and Edge/Fog Computing
Original source
May 30, 2022·IEEE Internet of Things Journal
90 cites
Efficient and Privacy-Preserving Blockchain-Based Multifactor Device Authentication Protocol for Cross-Domain IIoT

Yan Zhang, Bing Li, Jiaxin Wu, Bo Liu · 6 authors

Industrial Internet of Things (IIoT) has emerged as a prospective technology that improves the productivity and automation level for industrial applications. Devices from cooperative IIoT domains will communicate and collaborate on the increasingly complicated manufacturing tasks. To secure cross-domain device collaborations, we propose combining the blockchain with multifactor authentication. Because the multifactor authentication conforms to IIoT devices’ operation modes and brings higher security levels, and the blockchain technology contributes to building trust among different domains. However, this combined usage still has limitations in terms of the potential loss of factor attack, the storage overhead on the blockchain, and the contradiction between efficiency and privacy preservation. Motivated by these facts, in this article, we develop a privacy-preserving blockchain-based multifactor device authentication protocol for cross-domain IIoT. Specifically, multiple factors are additionally encoded by the hardware fingerprint into random numbers, before being transformed into key materials. The blockchain only stores each domain’s dynamic accumulator, which accumulates derived key materials for devices, thereby reducing the overhead. Moreover, the on-chain accumulator is leveraged to efficiently verify the unlinkable identities of cross-domain IIoT devices. The security of our protocol is formally proved, and the security features and functionalities are, respectively, discussed. A proof-of-concept prototype was implemented to prove the efficiency and reliability. The comparison results indicate that the on-chain storage is greatly reduced. Finally, the smart contract’s performance was evaluated to show scalability.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
User Authentication and Security Systems
Original source
May 30, 2022·IEEE Access
28 cites
Distributed Ledger Technology Based Integrated Healthcare Solution for Bangladesh

Md. Ariful Islam, Md. Antonin Islam, Md. Amzad Hossain Jacky, Md. Al-Amin · 7 authors

Healthcare data is highly sensitive and must be safeguarded. Personal and sensitive data, such as names and addresses, is stored in Encrypted Electronic Health Records (EHRs). This paper proposes a Blockchain-based distributed application platform for Bangladesh’s public and private healthcare service providers. The proposed application framework enables users to create secure digital agreements for commerce or collaboration by leveraging data immutability and smart contracts. As a result, all stakeholders can collaborate securely over the same Blockchain network, taking advantage of their data’s openness and read/write nature. The proposed application is made up of various application interfaces for various stakeholders. The proposed solution employs Hyperledger Fabric and Blockchain to ensure data integrity, privacy, permissions, and service availability. In the application portal, each user has a profile. The creation of a unique identity for each user, as well as the establishment of digital information centers across the country, has greatly aided the process. This application collects health data from each user in a systematic manner, which is useful for research institutes and healthcare-related organizations. For this application, a national data warehouse in Bangladesh is feasible, and various healthcare-related analyses can be performed using the collected data, assisting the strategy and planning department in making informed decisions regarding the healthcare sector in Bangladesh. Because Bangladesh has both public and private healthcare providers, a simple digital strategy is essential for all organizations to accomplish their services. This study proposes a solution to achieve this goal.

Open access
3 source records
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Retinal Imaging and Analysis
Original source
May 29, 2022·Computational Intelligence and Neuroscience
13 cites
Blockchain and K-Means Algorithm for Edge AI Computing

Xiaotian Qiu, Dengfeng Yao, Xinchen Kang, Abudukelimu Abulizi

The current development of blockchain, technically speaking, still faces many key problems such as efficiency and scalability issues, and any distributed system faces the problem of how to balance consistency, availability, and fault tolerance need to be solved urgently. The advantage of blockchain is decentralization, and the most important thing in a decentralized system is how to make nodes reach a consensus quickly. This research mainly discusses the blockchain and K-means algorithm for edge AI computing. The natural pan-central distributed trustworthiness of blockchain provides new ideas for designing the framework and paradigm of edge AI computing. In edge AI computing, multiple devices running AI algorithms are scattered across the edge network. When it comes to decentralized management, blockchain is the underlying technology of the Bitcoin system. Due to its characteristics of immutability, traceability, and consensus mechanism of transaction data storage, it has recently received extensive attention. Blockchain technology is essentially a public ledger. This is done by recording data related to trust management to this ledger. To collaboratively complete artificial intelligence computing tasks or jointly make intelligent group decisions, frequent communication is required between these devices. By integrating idle computing resources in an area, a distributed edge computing platform is formed. Users obtain benefits by sharing their computing resources, and nodes in need complete computing tasks through the shared platform. In view of the identity security problems faced in the sharing process, this article introduces blockchain technology to realize the trust between users. All participants must register a secure identity in the blockchain network and conduct transactions in this security system. A K-means algorithm suitable for edge environments is proposed to identify different degradation stages of equipment operation reflected by multiple types of data. Based on the prediction of the fault state for a single type of data, the algorithm uses the historical data of multiple types of data together with the prediction data to predict the fault stage. During the research process, the average optimization energy consumption of K-means algorithm is 14.6% lower than that of GA. On the basis of designing a resource allocation scheme based on blockchain, the problem of how the participants can realize reliable resource use according to the recorded data on the chain is studied. The article implements the verification of the legality of the use of blockchain resources. In addition, a control node is introduced to master the global real-time information of the network to provide data support for the user's choice.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Brain Tumor Detection and Classification
Original source
May 29, 2022·Security and Communication Networks
42 cites
Survey of Consensus Algorithms for Proof of Stake in Blockchain

Lina Ge, Jie Wang, Guifen Zhang

As the core of blockchain technology, the consensus algorithm directly affects the security, stability, and decentralisation of the blockchain and numerous other important characteristics. Choosing an appropriate consensus algorithm for different scenarios is currently a challenge in the implementation of blockchain applications. This paper classifies the improvement schemes of proof of stake (PoS) into three categories: PoS-based consensus algorithms, PoS- and PoW-based consensus algorithms, and PoS- and BFT-based consensus algorithms. First, the study introduces the PoS and PoS consensus algorithm variants and then summarises the core ideas, effects, advantages, and disadvantages of these algorithms. Subsequently, the performances of the improved algorithms are compared. Finally, the main improved methods are summarised, and the most common network security attacks are discussed. The study lays a foundation for the main improvement directions of PoS in the future, hoping to provide a reference for researchers to help them select and design consensus algorithms in different application scenarios while also helping the evolution of consensus algorithms and the implementation of blockchain applications.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Visual Attention and Saliency Detection
Original source
May 29, 2022·Journal of Sensors
71 cites
Electronic Healthcare Data Record Security Using Blockchain and Smart Contract

Farjana Khanam Nishi, Mahizebin Shams-E-Mofiz, Mohammad Monirujjaman Khan, Abdulmajeed Alsufyani · 7 authors

An electronic health record (EHR) is a technology that allows you to keep track of your health information. It keeps computerized records of several healthcare organizations. Records are exchanged via enterprise-wide data systems as well as other networking technologies and exchanges. Patients nowadays expect immediate access to their health information. However, the health sector comes with immediate access to data, and there are worries about the privacy and security of medical records of patients. As a result, a blockchain-based solution can assist in resolving this issue. The blockchain has the potential to beat the conventional centralized system, which suffers from a severe lack of accessibility. This is a decentralized technology that has recently been presented to provide a new viewpoint on data security and system efficiency. This paper presents a blockchain-based system that helps the patient’s data be managed and secured into a single record held by the patient. This system was developed using the Ethereum network using Ganache, as well as programming languages, tools, and techniques such as Solidity and web3.js. The measured approach suggested in this paper uses this platform to store patients’ data and execute functions in a decentralized system using blockchain smart contracts. Transactions are communicated through the smart contract once it has been launched, providing security and privacy features. Furthermore, the transaction’s desired alterations can be verified and transmitted to the entire distributed network. There is also a cryptocurrency wallet (MetaMask) that holds a centrally controlled, private information system in which records can be quickly accessed and secured by authorities. Doctors and patients can access the system through the wallet. Moreover, all the data of the doctor and patient will be secured and managed through this system. This proposed system is aimed at doing things such as the following: blockchain technology allows users to obtain the same data at the same time, increasing efficiency, developing credibility, and reducing barriers. It enables the secure storage of data by setting specific access for users. Additionally, this proposed system facilitates the secure transfer of patient medical records. Finally, this paper describes a health-record system and a new protocol that are quick and secure to use. It allows greater openness and ownership of sensitive data to be recorded and secured and also promotes the healthcare sector with blockchain.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
FinTech, Crowdfunding, Digital Finance
Original source
May 28, 2022·International Journal of Computations Information and Manufacturing (IJCIM)
126 cites
IMPROVING HOME SECURITY USING BLOCKCHAIN

Nada Ratković

The major problem with the use of smart home technology is that it often leads to various security issues. This mainly happens because the devices use open internet connections that may be vulnerable and subjected to multiple threats, hackers, and viruses. Some household IoT devices are forcefully introduced to the market, exposing the customers to significant risk factors. The websites and links do not have any copyright information or any privacy policies, due to which the hackers may immediately steal the confidential information of the user. For instance, the door locking password may be hacked by cyber criminals, and they may use it to attack the home when there is nobody in the home. This paper presents how to use block-chain to improve home security.

Open access
IoT and Edge/Fog Computing
IoT-based Smart Home Systems
Blockchain Technology Applications and Security
Original source
May 27, 2022·Digital Communications and Networks
16 cites
Throughput-oriented associated transaction assignment in sharding blockchains for IoT social data storage

Liping Tao, Yang Lu, Ding Xu, Yuqi Fan · 5 authors

Blockchain is a viable solution to provide data integrity for the enormous volume of 5G IoT social data, while we need to break through the throughput bottleneck of blockchain. Sharding is a promising technology to solve the problem of low throughput in blockchains. However, cross-shard communication hinders the effective improvement of blockchain throughput. Therefore, it is critical to reasonably allocate transactions to different shards to improve blockchain throughput. Existing research on blockchain sharding mainly focuses on shards formation, configuration, and consensus, while ignoring the negative impact of cross-shard communication on blockchain throughput. Aiming to maximize the throughput of transaction processing, we study how to allocate blockchain transactions to shards in this paper. We propose an Associated Transaction assignment algorithm based on Closest Fit (ATCF). ATCF classifies associated transactions into transaction groups which are then assigned to different shards in the non-ascending order of transaction group sizes periodically. Within each epoch, ATCF tries to select a shard that can handle all the transactions for each transaction group. If there are multiple such shards, ATCF selects the shard with the remaining processing capacity closest to the number of transactions in the transaction group. When no such shard exists, ATCF chooses the shard with the largest remaining processing capacity for the transaction group. The transaction groups that cannot be completely processed within the current epoch will be allocated in the subsequent epochs. We prove that ATCF is a 2-approximation algorithm for the associated transaction assignment problem. Simulation results show that ATCF can effectively improve the blockchain throughput and reduce the number of cross-shard transactions.

Open access
Blockchain Technology Applications and Security
Caching and Content Delivery
IoT and Edge/Fog Computing
Original source
May 27, 2022·International Journal of Network Security & Its Applications
1 cites
An Evaluation of Security in Blockchain-based Sharing of Student Records in Higher Education

Timothy Arndt, Angela Guercio, Young-Hun Chae

Blockchain has recently taken off as a disruptive technology, from its initial use in cryptocurrencies to wider applications in areas such as property registration and insurance due to its characteristic as a distributed ledger which can remove the need for a trusted third party to facilitate transactions. This spread of the technology to new application areas has been driven by the development of smart contracts – blockchain-based protocols which can automatically enforce a contract by executing code based on the logic expressed in the contract. One exciting area for blockchain is higher education. Students in higher education are ever more mobile, and in an ever more agile world, the friction and delays caused by multiple levels of administration in higher education can cause many anxieties and hardships for students as well as potential employers who need to examine and evaluate student credentials. Distance learning as a primary platform for higher education promises to open up higher education to a wider range of learners than ever before. Blockchain-based storage of academic credentials is being widely studied due to the advantages it can bring. As with any network-based system, blockchain comes with a number of security and privacy concerns. Blockchain needs to meet several security-related requirements to be widely accepted: decentralization; confidentiality; integrity; transparency; and immutability. Researchers have been busy devising schemes to ensure that such requirements can be met in blockchain-based systems. Several types of blockchain-specific attacks have been identified: 51% attacks; malicious contracts; spam attacks; mining pools; targeted DDoS attacks; and others. Real-world attacks on blockchain-based systems have been seen on cryptocurrency sites. In this paper, we will evaluate the specific privacy and security concerns for blockchain-based systems used for academic credentials as well as suggested solutions. We also examine the issues for academic credentials which are stored “off-chain” in such systems (as is often the case). In this case, a Distributed File System (DFS) implemented with a peer-to-peer (P2P) architecture is often the choice for the storage of the academic credentials since it matches the decentralized nature of blockchain. Blockchain then contributes much to the usefulness of such a DFS, making it in turn a good match for a P2P DFS such as IPFS.

Open access
2 source records
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Cryptography and Data Security
Original source
May 26, 2022·Future Generation Computer Systems
148 cites
Integration of blockchain and edge computing in internet of things: A survey

He Xue, Dajiang Chen, Ning Zhang, Hong‐Ning Dai · 5 authors

As an important technology to ensure data security, consistency, traceability, etc., blockchain has been increasingly used in Internet of Things (IoT) applications. The integration of blockchain and edge computing can further improve the resource utilization in terms of network, computing, storage, and security. This paper aims to present a survey on the integration of blockchain and edge computing. In particular, we first give an overview of blockchain and edge computing. We then present a general architecture of an integration of blockchain and edge computing system. We next study how to utilize blockchain to benefit edge computing, as well as how to use edge computing to benefit blockchain. We also discuss the issues brought by the integration of blockchain and edge computing system and solutions from perspectives of resource management, joint optimization, data management, computation offloading and security mechanism. Finally, we analyze and summarize the existing challenges posed by the integration of blockchain and edge computing system and the potential solutions in the future.

Open access
2 source records
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Caching and Content Delivery
Original source
May 26, 2022·Sensors
68 cites
Addressing the Challenges of Electronic Health Records Using Blockchain and IPFS

Iris Cathrina Abacan Pilares, Sami Azam, Serkan Akbulut, Mirjam Jonkman · 5 authors

Electronic Health Records (EHR) are the healthcare sector's core digital strategy meant to improve the quality of care provided to patients. Despite the benefits afforded by this digital transformation initiative, adoption among healthcare organizations has been slower than desired. The sheer volume and sensitive nature of patient records compel these organizations to exercise a healthy amount of caution in implementing EHR. Cyberattacks have also increased the risks associated with non-optimal EHR implementations. An influx of high-profile data breaches has plagued the sector during the COVID-19 pandemic, which put the spotlight on EHR cybersecurity. One objective of this research project is to aid the acceleration of EHR adoption. Another objective is to ensure the robustness of the system to resist malicious attacks. For the former, a systematic review was used to unearth all the possible causes why the adoption of EHR has been anemic. In this paper, sixty-five existing proposed EHR solutions were analyzed and it was found that there are fourteen major challenges that need to be addressed to reduce friction and risk for health organizations. These were privacy, security, confidentiality, interoperability, access control, scalability, authentication, accessibility, availability, data storage, data ownership, data validity, data integrity, and ease of use. We propose EHRChain, a new framework that tackles all the listed challenges simultaneously to address the first objective while also being designed to achieve the second objective. It is enabled by dual-blockchains based on Hyperledger Sawtooth to allow patient data decentralization via a consortium blockchain and IPFS for distributed data storage.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Cloud Data Security Solutions
Original source
May 25, 2022·IEEE Systems Journal
39 cites
An Anonymous IoT-Based E-Health Monitoring System Using Blockchain Technology

Omaji Samuel, Akogwu Blessing Omojo, Syed Muhammad Mohsin, Prayag Tiwari · 6 authors

The Internet of Things (IoT) has made it possible for health institutions to have remote diagnosis, reliable, preventive, and real-time decision-making. However, the anonymity and privacy of patients are not considered in IoT. Therefore, this article proposes a blockchain-based anonymous system, known as GarliMediChain, for providing anonymity and privacy during COVID-19 information sharing. In GarliMediChain, garlic routing and blockchain are integrated to provide low-latency communication, privacy, anonymity, trust, and security. Also, COVID-19 information is encrypted multiple times before transmitting to a series of nodes in the network. To ensure that COVID-19 information is successfully shared, a blockchain-based coalition system is proposed. The coalition system enables health institutions to share information while maximizing their payoffs. In addition, each institution uses the proposed fictitious play to study the strategies of others in order to update its belief by selecting the best responses from them. Furthermore, simulation results show that the proposed system is resistant to security-related attacks and is robust, efficient, and adaptive. From the results, the proposed proof-of-epidemiology-of-interest consensus protocol has 15.93% less computational cost than 26.30% of proof-of-work and 57.77% proof-of-authority consensus protocol, respectively. Nonetheless, the proposed GarliMediChain system promotes global collaborations by combining existing anonymity and trust solutions with the support of blockchain technology.

Open access
Blockchain Technology Applications and Security
Advanced Steganography and Watermarking Techniques
IoT and Edge/Fog Computing
Original source
May 25, 2022·2022 IEEE/ACIS 20th International Conference on Software Engineering Research, Management and Applications (SERA)
36 cites
Software Engineering Process and Methodology in Blockchain-Oriented Software Development: A Systematic Study

Md Jobair Hossain Faruk, Santhiya Subramanian, Hossain Shahriar, Maria Valero · 6 authors

Software Engineering is the process of systematic, disciplined, quantifiable approach that has significant impact on large-scale and complex software development. Scores of well-established software process models have long been adopted in the software development life cycle that pour stakeholders towards the completion of final software products development. Within the boundary of advanced technology, various emerging and futuristic technology is evolving that really need the attention of software engineering community whether the conventional software process techniques are capable to inherit the core fundamental into the futuristic software development. In this paper, we study the impact of existing software engineering processes and models including Agile, and DevOps in Blockchain-Oriented Software Engineering. We also examine the essentiality of adopting state-of-art concepts and evolving the current soft-ware engineering process for blockchain-oriented systems. We discuss the insight of software project management practices in BOS development. The findings of this study indicate that utilizing state-of-art techniques in software processes for futur-istic technology would be challenging and promising research is needed extensively towards addressing and improving state-of - the-art software engineering processes and methodology for novel technologies.

Open access
2 source records
cs.SE
Blockchain Technology Applications and Security
Cloud Computing and Resource Management
Original source
May 25, 2022·arXiv (Cornell University)
4 cites
Cloud Computing -- Everything As A Service

Michael Howard

Compute infrastructure hosted by a cloud provider allows an application to scale without limit. The application developer no longer needs to worry about the up-front investment in a server farm provisioned for a worst-case load scenario. However, managing cloud deployments requires a sophisticated framework that can autoscale the infrastructure and guarantee the up-time of running container images. This paper surveys existing research addressing the management and orchestration of cloud deployments as well as the modelling framework to abstract away the low-level details of the host infrastructure. We investigate blockchain distributed ledgers, quantum computing and Internet of Things application stacks to show how they can utilize cloud deployments.

Open access
2 source records
cs.DC
cs.SE
Cloud Computing and Resource Management
Original source
May 24, 2022·International Journal of Power Electronics and Drive Systems/International Journal of Electrical and Computer Engineering
5 cites
Smart offload chain: a proposed architecture for blockchain assisted fog offloading in smart city

Minal Patel, Bhavesh N. Gohil, Sanjay Chaudhary, Sanjay Garg

Blockchain enables smart contract for secure data transfer by which fog offloading servers can have trustworthy access control to work with data execution. When cloud is used for handling requests from mobile users, the attacker may perform denial of service attack and the same is possible at fog nodes and the same can be handled with the help of blockchain technology. In this paper, smart city application is discussed a use case study for blockchain based fog computing architecture. We propose a novel offload chain architecture for blockchain-based offloading in internet of things (IoT) networks where mobile devices can offload their data to fog servers for computation by an access control mechanism. The offload chain model using deep reinforcement learning (DRL) is proposed to improve the efficiency of blockchain based fog offloading amongst existing models.

Open access
Blockchain Technology Applications and Security
IoT and Edge/Fog Computing
Privacy-Preserving Technologies in Data
Original source