IAES Nawala: Blockchain feat Internet of Things?

Halo rekan peneliti!

Ini adalah IAES Nawala dari Institute of Advanced Engineering and Science. Hari ini kami akan share mengenai blockchain dan peranan blockchain dengan internet of things (IoT). Blockchain pada dasarnya merupakan sebuah teknologi yang digunakan untuk mengamankan transaksi online dengan membuat catatan yang terdistribusi dan terdesentralisasi pada beberapa computer. Assiri dan Khan melakukan penelitian terkait blockchain (secara spesifik mengenai tendermint blockchain algorithm) yang lebih rincinya dapat dilihat pada artikel berikut:

Fair and trustworthy: Lock-free enhanced tendermint blockchain algorithm

Basem Assiri, Wazir Zada Khan

Blockchain Technology is exclusively used to make online transactions secure by maintaining a distributed and decentralized ledger of records across multiple computers. Tendermint is a general-purpose blockchain engine that is composed of two parts; Tendermint Core and the blockchain application interface. The application interface makes Tendermint suitable for a wide range of applications. In this paper, we analyze and improve Practical Byzantine Fault Tolerant (PBFT), a consensus-based Tendermint blockchain algorithm. In order to avoid negative issues of locks, we first propose a lock-free algorithm for blockchain in which the proposal and voting phases are concurrent whereas the commit phase is sequential. This consideration in the algorithm allows parallelism. Secondly, a new methodology is used to decide the size of the voter set which is a subset of blockchain nodes, further investigating the block sensitivity and trustworthiness of nodes. Thirdly, to fairly select the voter set nodes, we employ the random walk algorithm. Fourthly, we imply the wait-freedom property by using a timeout due to which all blocks are eventually committed or aborted. In addition, we have discussed voting conflicts and consensuses issues that are used as a correctness property, and provide some supportive techniques.

Berdasarkan artikel sebelumnya dapat diambil kesimpulan bahwa blockchain memiliki mekanisme-mekanisme yang menyebabkan blockchain menjadi aman. Ramanath dkk memanfaatkan mekanisme dari teknologi blockchain menjadi agen keamanan dalam bertransaksi data diagnosa kangker payudara. Oleh karena itu, hanya entitas terpercaya saja yang mendapatkan data tersebut. Artikel lebih lengkap dapat dibaca pada halaman berikut:

 Blockchain integrated multi-agent system for breast cancer diagnosis

Thirumalaimuthu Thirumalaiappan Ramanath, Md. Jakir Hossen, Md. Shohel Sayeed

The integration of multi-agent system and blockchain technology can be beneficial to healthcare applications by providing intelligent data analysis with security. This paper presents an architecture that integrates multi-agent learning system and blockchain technology to support breast cancer diagnosis in a secured manner. The proposed system is based on a parallel hybrid fuzzy logic approach for supporting the prediction of breast cancer disease. The proposed system showed a classification accuracy of 96.49% in breast cancer diagnosis when testing with the Wisconsin Diagnostic Breast Cancer dataset. The blockchain is used to provide agent security in the proposed system to ensure that the only trusted and reputed agents are participated in the decision-making process.

Tidak terbatas pada data hasil diagnosa, Murugan dkk. melakukan improvisasi terhadap peningkatan availability dari Electronic Health Records (EHR). HER merupakan data sensitif yang perlu dijaga kerahasiaannya. Peneliti menggunakan teknologi blockchain pada Health Information Exchange (HIE) untuk meningkatkan keamanan data medis pasien yang dikirimkan oleh dokter. Dengan begitu, EHR pasien akan tetap tersampaikan secara aman. Artikel lebih lengkap dapat diakses melalui:

Healthcare information exchange using blockchain technology

A. Murugan, Tushar Chechare, B. Muruganantham, S. Ganesh Kumar

Current trend in health-care industry is to shift its data on the cloud, to increase availability of Electronic Health Records (EHR) e.g. Patient’s medical history in real time, which will allow sharing of EHR with ease. However, this conventional cloud-based data sharing environment has data security and privacy issues. This paper proposes a distributed solution based on blockchain technology for trusted Health Information Exchange (HIE). In addition to exchange of EHR between patient and doctor, the proposed system is also used in other aspects of healthcare such as improving the insurance claim and making data available for research organizations. Medical data is very sensitive, in both social as well as legal aspects, so permissioned block-chain such as Hyperledger Fabric is used to retain the necessary privacy required in the proposed system. As, this is highly permissioned network where the owner of the network i.e. patient holds all the access rights, so in case of emergency situations the proposed system has a Backup Access System which will allow healthcare professionals to access partial EHR and this backup access is provided by using wearable IOT device.

Teknologi blockchain mulai menjamah masuk pada teknologi IoT. Penelitian oleh Al-Shabi dan Al-Qarafi membahas tentang challenges and solutions dari pengimplementasian teknologi blockchain di IoT. Di akhir kata dalam penelitiannya mereka mengutarkan bahwa artikel ini membahas masalah yang belum terbahas dan prospek dari teknologi blockchain-IoT. Untuk lebih jelasnya dapat dibaca pada artikel berikut:

Improving blockchain security for the internet of things: challenges and solutions

Mohammed Al-Shabi, Abdulrahman Al-Qarafi

Due to its uniquely suited to the knowledge era, the blockchain technology has currently become highly appealing to the next generation. In addition, such technology has been recently extended to the internet of things (IoT). In essence, the blockchain concept necessitates the use of a decentralized data operation system to store as well as to distribute data and the transactions across the net. Therefore, this study examines the specific concept of the blockchain as a decentralized data management system in the face of probable protection threats. Furthermore, it discusses the present solutions that can be used to counteract those attacks. The blockchain security enhancement solutions are included in this study by summarizing the key points of these solutions. Several blockchain systems and safety devices that register security defenselessness can be developed using such key points. At last, this paper discusses the pending matters and the outlook research paths of blockchain-IoT systems.

Smart contract merupakan mekanisme di blockchain yang berjalan ketika kondisi yang telah ditentukan terpenuhi. Ganesh Kumar dkk. mengimplementasikan smart contract pada perangkat IoT. Pada penelitiannya, mereka mengusulkan untuk menggunakan teknologi blockchain sebagai media pertukaran data pada perangkat IoT. Lebih detail terkait penerapan dapat dilihat pada artikel berikut:

IoT–smart contracts in data trusted exchange supplied chain based on block chain

S. Ganesh Kumar, A. Murugan, B. Muruganantham, B. Sriman

Internet of Things (IoT) assumes a critical part in the advancement of different fields. The IoT data trusted exchange in recent year extend of uses influence an awesome request and increasing scale. In such a platform, exchange the data sets that they require and specialist organization can search. However, the enough trust as the third-party mediators for data exchange in centralized infrastructure cannot provide. This paper proposes a blockchain for IoT data trusted exchange based on decentralized solution. In particular, the fundamental standards of blockchain in verify manner, individuals can communicate with each other without a confided in mediator intermediary. Blockchain enable us to have a distributed, digital ledger. IoT (Internet of Things) sensor devices (zigbee) utilizing blockchain technology to assert public availability of temperature records, tracking location shipment, humidity, preventing damage, data immutability. The sensor devices looking the temperature, location, damage of each parcel during the shipment to completely guarantee directions. In blockchain all data is got moved from one position to another, where a smart contract assesses against the product attributes. Ethereum blockchain and smart contracts atlast it gets through knowledge a design to be copied and presents its decentralized distributed digital ledger, auditable, transparent, features visually.

Penerapan blockchain pada IoT tentu saja memiliki pro-kontra. Alam dalam penelitiannya, melakukan evaluasi dari performa IoT yang telah diterapkan blockchain didalamnya. Hasil evaluasi dan penjelasan lebih rinci dapat dilihat pada artikel berikut:

Performance evaluation of blockchains in the internet of things

Tanweer Alam

The idea of blockchains technology (BT) in the internet of things (IoT) is to allow the physical things to trust in the transactions held within the IoT network. The BT is a distributed, decentralized, publicly shared its digital ledger and secured technology to eternally record the transactions across the shared database. The BT in IoT can be called Trust Machine to eliminate the intermediates and enables the physical things to trust with each other. This research evaluates the performance of BT in IoT. The simulated results are tested and can be used in the sustainable development of the integration of BT and IoT.

Beberapa artikel diatas merupakan sedikit dari banyaknya kolaborasi dari teknologi blockchain dan IoT. Untuk mendapatkan informasi lebih banyak kalian dapat mengakses secara GRATIS di: http://telkomnika.uad.ac.id/, https://ijece.iaescore.com/, https://ijeecs.iaescore.com/, dan http://iaesprime.com/index.php/csit

Redaksi: Busthomi