  The Internet of Things is progressively getting broader, evol-ving its scope
while creating new markets and adding more to the existing ones. However, both
generation and analysis of large amounts of data, which are integral to this
concept, may require the proper protection and privacy-awareness of some
sensitive information. In order to control the access to this data, allowing
devices to verify the reliability of their own interactions with other
endpoints of the network is a crucial step to ensure this required safeness.
Through the implementation of a blockchain-based Public Key Infrastructure
connected to the Keybase platform, it is possible to achieve a simple protocol
that binds devices' public keys to their owner accounts, which are respectively
supported by identity proofs. The records of this blockchain represent digital
signatures performed by this Keybase users on their respective devices' public
keys, claiming their ownership. Resorting to this distributed and decentralized
PKI, any device is able to autonomously verify the entity in control of a
certain node of the network and prevent future interactions with unverified
parties.
