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All Journal SAINTEK Journal of Electrical Engineering and Informatics Jurnal Ilmu Komputer dan Teknologi Informasi
Abdillah AG
Universitas Pelita Bangsa
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Analisis Risiko Keamanan pada Mekanisme Lazy Minting Berbasis EIP-712 di Ekosistem Ethereum Abdillah AG; Ike Ardianti; Alhadi Saputra
Prosiding Sains dan Teknologi Vol. 5 No. 1 (2026): Seminar Nasional Sains dan Teknologi (SAINTEK) ke 5 - Februari 2026
Publisher : DPPM Universitas Pelita Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pada perkembangan teknologi web3 terutama NFT saat ini, Lazy minting menjadi mekanisme yang dominan digunakan pada marketplace NFT dengan menghilangkan biaya gas di awal minting melalui pembuatan voucher berbasis tanda tangan off-chain. Meskipun pendekatan ini dianggap menurunkan hambatan masuk untuk pengguna dan meningkatkan partisipasi pasar, mekanisme tersebut menggeser asumsi arsitektur melinting dari validasi sepenuhnya yang dilakukan secara on-chain menjadi model otorisasi hibrida off-chain–on-chain. Penelitian ini dilakukan menggunakan pendekatan Systematic Literature Review (SLR) dengan kerangka PRISMA dan mensintesis 15 literatur terpilih terkait kebijakan lazy minting, implementasi standar EIP-712, kerentanan replay signature, meta-transaction, serta risiko usability yang terjadi pada wallet. Hasil sintesis dari penelitian ini menunjukkan bahwa, meskipun standar EIP-712 meningkatkan kejelasan pesan melalui structured signing dan domain separation, implementasi yang lemah pada pengelolaan nonce dan pemisahan domain tetap membuka celah untuk terjadinya replay attack. Selain itu, mekanisme lazy minting juga memperluas trust boundary dengan melibatkan relayer dan marketplace, sehingga mengubah lanskap risiko dibandingkan model minting tradisional. Penelitian ini mengintegrasikan perspektif ekonomi, kriptografi, dan pengalaman pengguna (UX) untuk membangun model risiko yang terintegrasi pada proses lazy minting berbasis standar EIP-712 pada ekosistem NFT.
Perancangan dan Implementasi Smart Contract untuk Traceability Pangan pada Program Makanan Bergizi Gratis (MBG) di Indonesia Abdillah AG; Alhadi Saputra; Irfan Afriantoro
Jurnal Ilmu Komputer dan Teknologi Informasi Vol. 3 No. 2 (2026): September
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) STMIK Indonesia Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63447/jikti.v3i2.2054

Abstract

Food traceability is an essential requirement in the supply chain of the Free Nutritious Meals Program (MBG) because it involves multiple actors, food ingredients, production processes, and distribution activities. This complexity requires a recording mechanism capable of representing the history of food ingredients and the relationships among activities so that the distribution process can be traced from the source to the recipient and vice versa. This study aims to design and implement MBGTraceability, a blockchain-based smart contract to support food traceability in the Free Nutritious Meals Program in Indonesia. The study applies the Design Science Research approach, which includes needs identification, design, implementation, testing, and functional validation. The developed model covers batch management, ownership transfer, partial batch usage in production, production relationships, distribution, incident reporting, and recall. Functional testing and validation were conducted through an automated test suite with positive and negative scenarios. The test results show that all 17 test cases were successfully executed (17 passing; 0 failing). The testing also shows that the system can maintain batch quantity consistency, link input materials with production outputs, and associate distribution and incidents with traceability units. The contribution of this study lies in translating MBG-specific traceability requirements into a smart contract transaction model and logic that can be implemented and functionally validated. The results indicate the initial feasibility of the approach as a proof of concept, with limitations in that scalability, gas efficiency and transaction cost, network performance, and formal smart contract security have not yet been evaluated.
Web-Based Decision Support System for Rental House Selection using Simple Additive Weighting based on User Preferences in South Cikarang Riska Aulia Dewi; Candra Naya; Abdillah AG
Journal of Electrical Engineering and Informatics Vol. 4 No. 1 (2026): Journal of Electrical Engineering and Informatics
Publisher : Fakultas Teknik Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jeeni.v4i1.14983

Abstract

The increasing number of rental houses in South Cikarang makes it difficult for prospective tenants to compare alternatives according to different preferences. This study aims to develop a web-based Decision Support System (DSS) using Simple Additive Weighting (SAW) for rental-house selection and to evaluate its usability. The system was developed using the Prototype method through requirements identification, quick design, prototype development, user evaluation, refinement, implementation, and testing. Four criteria were used: security, facilities, price, and distance, with weights of 20%, 25%, 30%, and 25%, respectively. Fifty rental-house alternatives were processed and normalized according to cost and benefit attributes using SAW to generate preference scores and rankings. Functional capabilities were validated using Black Box Testing, while usability was evaluated through the System Usability Scale (SUS) with 30 respondents. Kontrakan Griya Komando 2 (CS30) obtained the highest preference value of 0.8867. The resulting ranking depends on the selected criteria and the weights derived from respondents' preferences. Black Box Testing showed that the tested functions operated according to the expected results. The SUS evaluation produced an average score of 76.83 among the 30 respondents. The study contributes an integrated approach combining user-preference-based weighting, SAW ranking, and usability evaluation in a web-based DSS for rental-house selection in South Cikarang. The system is intended as a decision-support tool rather than a substitute for the user's final decision.
Co-Authors Alhadi Saputra Candra Naya Ike Ardianti Irfan Afriantoro Riska Aulia Dewi