Land administration and title registration system is the system for storing land title information and managing<br>transactions involving land titles. Due to the sensitivity of land issues, land administration and title registration<br>system should be strong to avoid any document forgery, available all the time, and take a short time to complete<br>tasks. Thus, this study aims at designing a model for such system based on blockchain technology. The proposed<br>model is designed using UML diagrams and then tested for verification using statistical usage models (Markov<br>chains). The proposed model integrates the Integrated Land Management Information System (ILMIS) with<br>factom and bitcoin blockchains which enables encryption of information from ILMIS to get the fingerprint<br>information of each land title and store it to the blockchains. The model further encrypts the land information<br>from ILMIS when needed and then compare it with fingerprints from blockchains for verification. Such<br>implementation of the proposed model will help ILMIS to have the capability of providing tamper proof for<br>stored data, providing the self-notarization mechanism, and availability of evidence for the land title from<br>distributed databases. Furthermore, the society is expected to benefit from this study as the time and cost for<br>registering land title will decrease and the possibilities of a piece of land having more than one owner will not be<br>there.
Blockchain, as an emerging technology, has become one of the hottest issues of discussion among researchers and businessmen. Different from traditional centralized database architecture where applications use central servers and databases under the authority’s control for information processing, blockchain proposes distributed digital ledgers to store data. This project explores the possibility of using blockchain technology to automate the Singapore general election polling process. Ethereum is chosen to be the blockchain protocol in this case due to its capability in executing smart contracts. For this approach, a smart contract defining general election process will be deployed to a Ethereum blockchain. Users will then connect to the network to monitor the contract. The main advantage of blockchain over the traditional client-server model in this context is system transparency and integrity which enhances the trust level citizens can place on the polling process. However, the fully distributed blockchain approach requires a huge amount of citizen data to be transferred to the distributed ledger for identity verification, which is practically infeasible in a short run due to the amount of work involved as well as citizens’ concern over privacy. In the eyes of this consideration, this project proposes a hybrid model combining the traditional centralized approach for identity verification and access control and the distributed approach for voting.
A portal into the public ledger cryptocurrency makes a competition of the best web sites and easily trusted by the public. These are believed to constitute a measurable dimensions of User Experience (UX). This study aims to evaluate the user experience of the use of the three web sites most frequenty accessed cryptocurrency from Indonesia. The evaluation conducted aimed at knowing the factors that influence user trust through the design of the interface and can be installed on a new design. Methods include Performance Metrics, Post-Task Rating, Post-Session Rating, and Experiential Overview and eye-tracking device. Based on the results of research, in the overall evaluation of the web site, the web site is the most superior of Indodax. The results of the evaluation are then applied on a new design using the software Invision and examined again to see a comparison of the respondent at the time of first use. The result of the research is the assessment, recommendations, and design the look of the web site cryptocurrency are trustworthy based on user experience.
Umut Can Çabuk, Eylül Adıgüzel, Enis Karaarslan
In the second decade of the 21st century, blockchain definitely became one of the most trending computational technologies. This research aims to question the feasibility and suitability of using blockchain technology within e-voting systems, regarding both technical and non-technical aspects. In today's world, although the course of this spreading is considerably slow, several countries already use means of e-voting due to many social and economic reasons, which we further investigated. Nevertheless, the number of countries offering various e-government solutions, apart from e-voting, is significantly high. E-voting systems, naturally, require much more attention and assurance regarding potential security and anonymity issues, since voting is one of the few extremely critical governmental processes. Nevertheless, e-voting is not purely a governmental service, but many companies and nonprofit organizations would benefit the cost-efficiency, scalability, remote accessibility, and ease of use that it provides. Blockchain technology is claimed to be able to address some, obviously not all, important security concerns, including anonymity, confidentiality, integrity, and non-repudiation. The analysis results presented in this article mostly confirm these claims.
Ekosistem Internet of Things (IoT) berkembang dengan sangat cepat dan diperkirakan akan menghubungkan 5-20 miliar perangkat pada tahun 2020. Data yang dihimpun dari perangkat ini akan mencapai jumlah yang sangat besar. Saat ini, ekosistem IoT pada umumnya menggunakan model sistem terpusat. Model tersebut memiliki beberapa kelemahan, seperti biaya pemeliharaan yang relatif tinggi, Sistem terdistribusi dapat menjadi alternatif solusi. Blockchain, teknologi ledger terditribusi, memungkinkan transaksi peer-to-peer tanpa perlu adanya perantara pihak ketiga yang terpercaya. Paper ini bertujuan untuk mengeksplorasi potensi pengintegrasian Blockchain ke dalam ekosistem IoT. Hasil penelitian berupa model dan use-case pemanfaatan Blockchain dalam IoT.
Sistem pemungutan suara di Indonesia yang lebih dikenal dengan nama pemilihan umum (pemilu) sampai saat ini masih dilaksanakan secara manual. Dalam sistem tersebut, dibutuhkan waktu yang lama serta tenaga yang besar untuk menghitung hasil dari pemlihan umum tersebut. Sistem manual juga memiliki banyak kelemahan yang bisa dimanfaatkan oleh pihak tertentu untuk memanipulasi hasil pemilihan umum . Untuk mengatasi masalah ini, salah satu solusinya adalah dengan menerapkan sistem pemilihan umum dengan sistem berbasis perangkat elektronik yang lebih dikenal dengan istilah E-Vote . Berbagai macam metode telah diterapkan dalam sistem E-Vote untuk mengatasi kecurangan, salah satunya dengan menggunakan sistem enkripsi-dekripsi data dari pemilih ke sistem. Namun hal ini kurang efektif apabila kecurangan terjadi ketika data sudah dirubah sebelum masuk ke sistem. Dengan menerapkan mekanisme rantai kepercayaan (chain of trust) untuk mendeteksi adanya perubahan surat suara serta sistem autentikasi digital, mekanisme keamanan bagi peserta pemungutan suara bisa diwujudkan. Proses autentikasi digital menggunakan ponsel pintar dengan teknologi NFC dipadukan dengan sistem enkripsi asimetris dan digital signature . Pemilih bisa mendeteksi adanya perubahan surat suara melalui digital signature yang ada dan sistem E-Vote bisa mengenali peserta dari kunci publik yang ditawarkan oleh autentikator. Kemudian sistem E-Vote bisa memverifikasi keaslian kunci publik peserta melalui autentikasi berbasis zero-knowledge proof challenge . Hasil pilihan peserta kemudian dikirimkan ke autentikator untuk ditandatangani dan tandatangan tersebut digunakan sebagai bukti peserta telah melakukan pemilihan. Dari hasil uji coba yang dilakukan, terbukti bahwa autentikator bisa mendeteksi ketidaksamaan antara data dengan signature, dan autentikator bisa melakukan autentikasi dengan sistem E-Vote dengan tepat. Data hasil pilihan peserta bisa diverifikasi dengan signature yang ada untuk memeriksa integritas data.