Password-Less Authentication

Abstract

Over the years, passwords have been our safeguards by acting to prevent one's data from unauthorized access. With the advancement of technologies, the way we have been using passwords has changed and transformed into much secure yet more user friendly than they were ever been in the past. However, the vulnerabilities identified and observed in this traditional system has motivated industry and researchers to find some alternate where there is no threat like stealing, hacking, and cracking of password. This chapter discusses the major developed password-less authentication techniques in detail and also puts an effort to explain the in-depth details along with the working principle of each of the technique through a use-case diagram. It would be of great benefit and contribution to the callow trying to explore research opportunities in this area.