What is difference between Authentication & Authorisation ?

What is difference between Authentication & Authorisation ?

Let’s look at the exact difference.

Authentication

• Process to verify that
  • users are who they claim to be
  • users are who, they say they are.
• e.g. Login to amazon.com will use password to authenticate user’s identity which is provided as part of user id.

Authentication Types

1.Something you know

• Passwords, Security, Questions

2.Something you have

• OTP via SMS
• USB token device

3.Something you are

• Biometric authentication like thumb fingerprint verification

Autherisation

• Process to determining
  • Access level of a particular user or service in a system
• Options to checking authorization
  1. RBAC – Role based access control
  2. ABAC – Attribute based access control
  3. RelBAC – Relationship based access control

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