ID-Based Self-encryption via Hyperledger Fabric Based Smart Contract

This paper offers a prototype of a Hyperledger Fabric-IPFS based network architecture including a smart contract based encryption scheme that meant to improve the security of user’s data that is being uploaded to the distributed ledger. A new extension to the self-encryption scheme was deployed by integrating data owner’s identity into the...

Combining Multiple ID’s, Attributes, and Policies to Provide Secure Access Control within Hyperledger Fabric Blockchain Networks

Blockchain technologies allow users to securely store and trace their data on a fully decentralized system, and have the potential to make a huge impact on many industries. While traditional, permissionless blockchains such as Bitcoin, Ethereum, and Cardano are very popular, they are currently unable to provide trust and privacy on the network....

Creating a TPM based smart contract for the Medical Supply Chain in Hyperledger Fabric

Smart contracts play an important role within the blockchain by ensuring that valid transactions are being recorded. However, there are critical concerns regarding the security and privacy of data within these blockchain applications. This research provides information on how the integration of the Trusted Platform Module can achieve more...

Using Self-Encryption to safeguard data security in Fabric’s smart contract

A rise in the use of blockchain systems implies an increase in smart contract usage. Blockchain systems can easily be found these days, most notably in cryptocurrencies and financial management. Furthermore, the Internet of Things (IoT) is being developed with blockchain, since blockchain ensures trust in IoT data and adds great flexibility....

Blockchain for Circularity: Hyperledger Fabric-based Material Passport Framework

The Linear Economy currently follows the Take - Make – Dispose model. This paradigm is based on the consumption of resources rather than the preservation of their value. If this model remains dominant, it will lead to material scarcity, thereby increasing materials prices. The linear economy has a negative effect on nature as this model creates...

Enhancing the privacy and security of Hyperledger Fabric smart contracts using different encryption methods

Blockchain networks have gained recent popularity among organisations that want to make use of the security aspects that blockchain provides. Fabric is one of the most used distributed network technologies, most commonly applied in scenarios that require confidential data to be stored securely and privately. Use case examples are finance,...

Fine-grained Access Control for a Blockchain-based Healthcare System

Large volumes of medical data (MD) are continuously generated by the healthcare domain. When sharing these data, issues arise regarding privacy and security. To solve these issues, a permissioned blockchain (BC) can be used, but since blockchains do not have access control (AC) as a default feature, the integration of an access control system ...

Blockchain Takes Off: Explorative study into the desirability, feasibility and viability of a Blockchain technology-enabled platform to smooth dry-operational aircraft lease transitions.

The aircraft leasing industry is still operating like it is 1980, the transfer of boxes filled with paper, a scattered information landscape, opposing interests and almost zero digitisation result in significant lease transition cost. Blockchain might change this. Although other technologies exist, Blockchain can given its characteristics be an...