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The Curious Bag
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Authentication is a process that is used to verify that an individual is the person who he or she is claiming to be.
Process
The process of authentication generally involves acquiring and verifying a username and a password.
Authorization
Authorization is a process that follows right after the authentication and is used to determine whether the authorized individual can be granted the right to the resources, like databases.
Purpose
The purpose of authentication is to protect the sensitive data or content from unauthorized access. It's usually done by creating a password and setting up the configuration to implement that password file.
Types
There are three types of authentication processes: Windows Authentication, Forms Authentication and Passport Authentication.
Expert Insight
Mostly used authentication processes for web applications are Windows Authentication and Forms Authentication. Most Internet applications have form authentication, whereas most Intranet applications employ Windows Authentication.
Source:
Authentication, Authorization and Access Control
Resource:
Apache
MSDN
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