
API Integration Expertise
The first type of authentication is accepting proof of identity given by a credible person who has first-hand evidence that the identity is genuine.
The second type of authentication is comparing the attributes of the object itself to what is known about objects of that origin.
The third type of authentication relies on documentation or other external affirmations.
The ways in which someone may be authenticated fall into three categories, based on what is known as the factors of authentication: something the user knows, something the user has, and something the user is.