ABSTRACT
Authentication is the act of someone establishing an
identity that they have declared them to be. In the world
of computers the most prevalent example is when the
users authenticate to prove that they are the persons
assigned to a specific ID that is used to control access to
a system. There are three different types or factors of
authentication. These three factors are something you
know, something you have, and something you are.
These can be used individually or together to authenticate
an identity.
