Authentication vs. Authorization – What’s the Difference?
How Authentication Differs From Authorization
For example, Authentication and Authorization sound similar, but when it comes to its meaning, they’re different.
These two terms – Authentication and Authorization are often used in conjunction when the discussion is regarding gaining access to the system and security. Both are also associated with the web as one of the infrastructure services. But, that’s also the fact that people often confuse these words with each other, especially those who have no IT security background.
If you think what these Authorization and Authentication are called? No worries, we’re going to cover the same.
- Authentication means confirmation of your identity, and Authorization means allowing access to the system.
- Authentication is a type of process which ascertains that somebody is what they claim they’re. And Authorization refers to a set of rules that help to determine who should be allowed to do what.
For example, Bob may only be authorized for creating and deleting databases, whereas Alice is assigned only for reading.
Authentication – What Is It?
An authentication factor is determined using different elements of the system, which is used for verifying someone’s identity before giving access to anyone regarding anything. However, an individual’s identity is determined through what a person already knows. And, at least two or three authentication factors are also involved, which needs to be verified for granting access to the system. According to the security level, the authentication factor differs through these three:
- Single – Factor Authentication
- Two – Factor Authentication
- Multi – Factor Authentication
Single – Factor Authentication
Two – Factor Authentication
Multi – Factor Authentication
Authorization – What Is It?
Let’s have a quick look at the differences between Authentication and Authorization.
|Referred to As
|It helps decide whether users are what they claim they are.
|It helps to decide which user is allowed to access what.
|User identity has to be verified via a username and password or answering a security question.
|It verifies whether the given access is allowed by following rules and policies.
|Typically this process takes place before Authorization.
|It takes place once Authentication is completed.
|It transmits information via ID Token.
|It transmits information through an Access Token.
|It’s administered through the OpenID Connect (OIDC) protocol.q
|It’s administered via the OAuth 2.0 framework.
Different ways of Authentication are:
Other forms of Authorization are:
|It’s controlled through the server for finding out who’s accessing what data or site.
|The server helps to decide that client has the authority to access a resource or not.
|Example: Employees authenticating through the network before opening the company mails.
|Example: Once an employee is authenticated, the different system decides which information will be accessed by which employee.
Here’s the Key Difference Among the Two – Authentication & Authorization
- Authentication is used for the verification process to identify user’s credentials, and Authorization is used for validating user’s rights to access the resource.
- Authentication is the first step, and after that, Authorization takes place.
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