The Biometric Signature as a Blockchain Application

Abstract

The Internet would be the largest one had it been a country of the world. The population and the produced and consumed data in this new country have been exponentially increasing, and the metrics with which one can measure all this growth are zettabytes, if not the yottabytes now. The issue of forgery detection on authentication and integrity and on the ownership of the data and the users grows incrementally along with this unprecedented growth of the Internet. With the advancements in hardware and software resulting in the Internet of Things (IoT), the checking against forgery will be even harder to perform since anything and everything will be interconnected as never seen before. Signing a document has always been a direct proof for belonging and authentication of the person. Thus, forgery has always been an equally likely issue to be encountered. While the journey of the signatures in the Internet era will be browsed in this chapter, the biometric signature as a complete and better-suited answer to the problem of forgery will be introduced within ironclad protection provided by a blockchain structure which is a new cybersecurity architecture in the domain of the IoT.