ABSTRACT
This paper analyzes the various authentication systems implemented for enhanced security and private reposition
of an individual’s login credentials. The first part of the paper describes the multi-factor authentication (MFA)
systems, which, though not applicable to the field of Internet of Things, provides great security to a user’s
credentials. MFA is followed by a brief description of the working mechanism of interaction of third party clients
with private resources over the OAuth protocol framework and a study of the delegation based authentication
system in IP-based IoT.
Keywords: - Authentication, authorization, OAuth, SASL