Master's thesis in Information- and communication technology (IKT590)Since the introduction of Bitcoin by Satoshi Nakamoto in a white paper in 2008, Blockchain has gathered considerable attention because of its ability to be decentralized and immutable. Blockchain is still considered as a new and experimental technology, and the state-of-the-art literature review was conducted to identify various use cases for the Blockchain technology for the healthcare industry. Consent management is one of the most critical components in healthcare because of the constantly evolving eHealth services requiring access to personal data, and of corresponding privacy laws, such as the European General Data Protection Regulation (GDPR), created to provide patients with more control over their healthcare data. This thesis focuses on how Blockchain can be used to facilitate consent management, where the patients are in control of who can access their personal data. This thesis creates a consent management solution for healthcare data using Blockchain-based smart contracts built on an Ethereum platform. These smart contracts are developed in Solidity programming language, and deployed in a test network for verification
