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2. SCPKI
3. Attribute based access control. 2018. https://en.wikipedia.org/wiki/Attribute-based_access_control Attribute based access control. 2018. https://en.wikipedia.org/wiki/Attribute-based_access_control
4. CoinDesk. https://www.coindesk.com/information/what-is-ethereum. (2016). CoinDesk. https://www.coindesk.com/information/what-is-ethereum. (2016).
5. RBAC-SC: Role-Based Access Control Using Smart Contract