Today massive amounts of data are generated from Internet-of-Things (IoT) sensors that can
be streamed in real-time and utilized for building valuable services. As the demand for data
sharing has increased, a new business model of data marketplace has emerged that allows
individuals to sell their data to buyers for monetary gain. However, these data marketplaces
are prone to various threats such as unauthorized data redistribution/reselling, tampering of
data, dishonest data ownership claims, and trade of bogus data. The existing solutions …