  Security and privacy are primary concerns in IoT management. Security
breaches in IoT resources, such as smart sensors, can leak sensitive data and
compromise the privacy of individuals. Effective IoT management requires a
comprehensive approach to prioritize access security and data privacy
protection. Digital twins create virtual representations of IoT resources.
Blockchain adds decentralization, transparency, and reliability to IoT systems.
This research integrates digital twins and blockchain to manage access to IoT
data streaming. Digital twins are used to encapsulate data access and view
configurations. Access is enabled on digital twins, not on IoT resources
directly. Trust structures programmed as smart contracts are the ones that
manage access to digital twins. Consequently, IoT resources are not exposed to
third parties, and access security breaches can be prevented. Blockchain has
been used to validate digital twins and store their configuration. The research
presented in this paper enables multitenant access and customization of data
streaming views and abstracts the complexity of data access management. This
approach provides access and configuration security and data privacy
protection.
