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Blockchain as a Notarization System for Military Data Sharing
(2025-01-01)
Chamnikul, Chatchawan
;
Khawne, Amnach
This paper presents a blockchain-based notarization system designed to secure and authenticate military data sharing. In the context of national defense, where the integrity and confidentiality of sensitive military data are paramount, traditional centralized systems often fail to meet the required security standards. Our proposed system leverages a permissioned blockchain platform, specifically Hyperledger Fabric, combined with smart contracts to create an immutable and transparent ledger. This ensures that once military data is recorded, it cannot be altered or tampered with, thereby enhancing data integrity and auditability. The system is further integrated with existing military information infrastructures through secure APIs and middleware, enabling seamless data exchange. Experimental evaluations conducted in a simulated environment demonstrate that the system achieves high transaction throughput, low latency, and robust error management. Although challenges remain in scalability and fine-grained access control, the results confirm that blockchain technology has the potential to significantly improve the security and transparency of military data sharing. Future work will focus on addressing these challenges and refining the system for real-world deployment in defense operations.
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Integrating Blockchain and Smart Contracts for Carbon Credit Management in Thailand: A Preliminary Multidisciplinary Analysis
(2025-01-01)
Trakunsathitman, Phanthika
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Chaisamran, Chiratt
;
Surasak, Thattapon
Blockchain and smart contracts have emerged as transformative technologies for enhancing transparency, security, and automation in carbon credit management. This study explores the integration of these technologies within the context of Thailand's carbon markets, focusing on system design, user interface development, and blockchain architecture. A UX testing phase was conducted to evaluate usability, security perception, and transaction efficiency. The results demonstrate strong stakeholder trust in blockchain's security benefits while identifying areas for improvement in user guidance and error feedback. While blockchain-based carbon credit platforms exist globally, this study examines their feasibility in Thailand and highlights potential challenges, including policy considerations and stakeholder engagement. The findings suggest that blockchain and smart contracts can enhance market transparency and compliance mechanisms, paving the way for further research into their broader adoption in sustainability initiatives.
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On-Chain Verifiable Credential with Applications in Education
(2024-07-01)
Chotikakamthorn, Nopporn
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Mi San, Aye
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Sathitwiriyawong, Chanboon
A verifiable credential (VC) has been standardized and applied in vari-ous domains, including education. Due to its immutability, blockchain has been considered and used for credential issuance and verification. Most existing methods, however, are not compatible with the W3C VC stan-dard. In this paper, an on-chain VC issuance and verification method has been described. The method is based on the standard VC data model and applicable to any credential type. It decomposes a VC document into a VC template and the corresponding value array(s). This allows a VC to be issued on-chain in the Bitcoin BTC network, which has a limited data-embedding capacity. The proposed method reduces blockchain resource consumption due to the reusability of a VC template. In addition, it allows the use of a concise VC fingerprint format instead of a full VC for credential exchange. Two issuance modes, namely the full on-chain and partial on-chain, are proposed targeting different use cases. The proposed method has been applied for issuing and verifying two learning credential types. The method was evaluated on the Bitcoin Testnet to measure time and space complexities. With the reduced-size VC fingerprint, the proposed method can embed a VC on a traditional paper-based credential as a compact-sized QR code. The proposed method ofiered faster VC issuance and verification than an existing standard-based verifiable credential method.
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GUIDELINES FOR DRIVING BUSINESS SECTOR INTO DIGITAL TRANSACTIONS FOR BUSINESS SURVIVAL: A CASE STUDY OF THE IMPACT OF COVID-19 TO SMES BUSINESS IN THAILAND
(2022-12-21)
Phimolsathien, T.
The purposes of this research are to study SMEs’ level of digital literacy for digital financial transactions and the level of impact of digital transactions on SMEs’ business transactions and to investigate the effect of digital literacy and competence for digital transactions on the impact of digital transactions on SMEs’ business operations. Employing questionnaires and interviews as tools, the research finds that overall digital literacy, competence and capability are perceived to be at mid-level. The impact of digital transactions on SMEs businesses is high, while the overall impact of the COVID-19 pandemic situation on SMEs businesses is at the highest level. Moreover, the research finds that digital literacy, competence, capability, and digital transaction literacy influence the impact of digital transactions on SMEs’ business operations. Altogether, they can forecast 40.7 % of the impact. Digital transaction literacy, digital competence and capability influence the impact of the COVID-19 pandemic situation. Altogether, they can forecast 61.6 % of the impact. The research proposes four ways to encourage SMEs to adopt digital transactions for business continuity: 1) promotion of SMEs’ literacy for digital financial management 2) promotion of the development of digital innovation for financial transactions, including a support system and updates 3) promotion of data analysis and management technology 4) legal overhaul of agencies overseeing financial institutions.
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Blockchain-based Trusty Buyer Coalition Scheme Using A Group Signature
(2022-01-01)
Boongasame, Laor
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Chaising, Supansa
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Temdee, Punnarumol
Without trust, buyers may not join a coalition. Despite the tremendous need for trustworthy relationships in buyer coalitions, no current buyer coalition scheme explicitly tackles confidence issues with blockchain technology. This study proposes an algorithmic design, the blockchain-based trusty buyer coalition scheme, to satisfy the trust requirement among different actors while forming the coalition. All activities forming a coalition through a decentralized public ledger can be explicitly examined. Consequently, the proposed algorithm can ensure anonymity within a community, resulting in trusting relationships. Furthermore, the proposed algorithm can ensure correctness and accountability by recognizing misbehavior and enforcing alternative forms of punishment. Additionally, the discovered algorithm can be applied to mobile commerce applications.
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The Application of Data-Driven Technologies to Enhance Supply Chain Resilience in the Context of COVID-19
(2021-01-01)
Zheng, Zhong
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Lin, Yun
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Li, Liwei
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Lu, Liuqing
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Pan, Yanfang
The sudden outbreak of COVID-19 has wreaked havoc on global supply chains. Fortunately, digital drive technology can improve supply chain resilience. This paper is based on literature review to research the impact of COVID-19 to supply chain, to research the interplay of supply chain resilience and data-driven technology, focuses on the operation mechanism of data-driven technology (digital twin, blockchain, big data) and integration them together to enhance the resilience of supply chain. This paper try to presents an effective perspective of supply chain resilience by data-driven technology, and it can provide some reference and guidance for improving the resilience of supply chain during and after the COVID-19.
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The novel secure testament methodology for cryptocurrency wallet using mnemonic seed
(2020-07-03)
Janpitak, Nanta
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Lilakiatsakun, Woraphon
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Sathitwiriyawong, Chanboon
Recently, cryptocurrencies such as Bitcoin, Ethereum, etc, have rapidly been recognized as an asset, often called a digital asset. Comparing to the real assets, it would be handled carefully due to its own characteristics that are completely different. The disadvantage of such digital assets, on the one hand, is that whoever knows the private key of the wallet, they can easily take over that digital asset. On the other hand, if the wallet’s owners are dead without passing credential information to others, that asset will be lost forever. We thus propose the novel secure testament methodology for a digital asset such as Bitcoin to solve the mentioned problems. The mechanism is based on managing the mnemonic seed of the wallet so that an inheritor will obtain the mnemonic seed in a secure way. Two mechanisms of the proposed methodology are implemented. The first is to save the mnemonic seed in a secure repository. Therefore, no one can access to the cryptocurrency wallet while the owner still being alive and does not wish anybody to access. The second is to deliver the mnemonic seed securely to legitimate inheritor when the owner is suspected to be dead or disappeared. Finally, based on our experiment, the results show that the aforementioned problems can be solved. Furthermore, the proposed mechanism can help the owner of the asset to managing the confidentiality of their assets.
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Blockchain and Smart Contract Payment for Electric Vehicle Charging
(2020-06-01)
Chanthong, Natthanan
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Ruangsakorn, Thitiwat
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Glomglome, Sorayut
Our research aims to study, design and build the electronic payment system for electric vehicle (EV) charging using blockchain and smart contract technologies. Both technologies are used to control and manage payments and to decentralize the payment system, so the devices can automatically pay each other. In addition, our system lessens the inadequate of charging station for EV when travel in the long distance because our proposed let EV owners who also have charging facilities at their homes share their facilities and automatically get paid. Blockchain node is set up in charging station and is controlled by the application for EV owners. The application can show the charging information and control the payment and charging process automatically. For EV part, we simulated the data transmission between charging station and EV.
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A performance evaluation for Internet of Things based on Blockchain technology
(2019-07-01)
Vatcharatiansakul, Nuttakit
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Tuwanut, Panwit
In this paper, the performance evaluation for Internet of Things based on blockchain Technology is proposed. In a blockchain network, all IoT devices communicate and synchronize with each other and allow device to transact with each other directly without the need of trusted intermediary. IoT devices have a smart contract associate with them which are deployed on the blockchain network. User or device who wish to use a service can transact to smart contract that associated with IoT device. Moreover, all transactions of IoT device, device-to device or human-to-device, will not only permanently store on Blockchain network but also gain the security and privacy of them. In this implementation, a private Ethereum network is chosen to use as a blockchain platform and the raspberry pi act as a lightweight node to transact with a smart contract in a full node which install on PC desktop. In addition, the performance evaluation of two realistic traffic flow, store and access transactions, such as latency, execution time and throughput are highlight.
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Applying epidemic algorithm for financial service based on blockchain technology
(2018-08-13)
Poonpakdee, Pasu
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Koiwanit, Jarotwan
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Yuangyai, Chumpol
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Chatwiriya, Watchara
Our global market is emerging transformation strategy that can make the difference between success and failure. Smart contract systems through developments of technological innovations are increasingly seen as alternative technologies to impact transactional processes significantly. Blockchain is a smart contract protocol with trust offering the potential for creating new transaction platforms and thus shows a radical change of the current core value creation in third parties. These results in enormous cost and time savings and the reduced risk for the parties. This study proposed a method to improve the efficiency of distributed consensus in blockchains using epidemic algorithm. The results showed that epidemic protocols can distribute the information similar to blockchain.

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