Introduction
It is one process of verification mainly used to determine the identity of a user. The identification of a user has a meaning to let the user access different services and resource, connect to device. A user authentication can be made in a several ways. Some of the authentication techniques are the following
- Basic Authentication
- Two Factor Authentication
- Three Factor Authentication
Basic Authentication
This is one of the authentication techniques that is in placed to determine the identify of the user or resource request. The basic authentication ask the user to provide userName and Password/ PIN or else use Authentication Token generated from username and password with the base64 encoding.
Figure 1.1 : – Authentication through Token or User Credential
Figure 1.2 : – Authentication Flow
Two Factor Authentication
This is also another authentication that could let us to know the identity of the user. The user has to provide username and password, and the system will send a message of register device mobile number a secrete code- probably laster a minute that the user has to provide that code to continue the access of service or resource.
Figure 1.3 : – Two factor Authentication
Three/Multi Factor Authentication
This is a continuation of a two factor authentication that is adding extra layer on the top of two factor – using a bio meter information. This means when the user provide a secrete code. The user also request to provide a bio meter information like figure print, image of a user eye.
Figure 1.4: – Three factor Authentication