Blockchain Solutions for Authorization and Authentication.

Recently, most people have been looking for smart services that allow them to do their daily services directly without having to visit local businesses and providers [ 1 ]. As observed in recent times, citizens can now apply to open their own commercial file or obtain a passport without having to visit the country's economic institution or the Immigration and Passports headquarters. Additionally, applying or opening accounts in virtual banks also added a lot of services and facilities for users and transactions between countries that can be rapidly provisioned with minimal effort [ 2 ]. All these transactions require the user's authentication and identity verification to avoid any personal fraud and save the user's rights Blockchain technology stands out as one of the most secure technologies available enabling secure transactions without the need for a central authority. Starting in 2009 ¹, with Bitcoin leveraging blockchain technology, there has been an increasing number of blockchain technology-based solutions. The significance of this work compared to its predecessors is that it uses an existing product and technology to prove the solutions offered by Blockchain and find a solution for authorization and authentication. [ABSTRACT FROM AUTHOR]