Access Control Fundamentals

11.1. Single Sign-On

Introduction

• SSO is a technology that allows a user to enter credentials one time and be able to access all resources in primary and secondary network domains

Advantages

• Reduces the amount of time users spend authenticating to resources.
• Enable the administrator to streamline user accounts and better control access rights
• Improves security by reducing the probability that users will write down their passwords
• Reduces the administrators time in managing the access permissions

Limitations

• Every platform application and resource needs to accept the same type of credentials, in the same format, and interpret their meaning in the same way.

Disadvantages

• Once an individual is in, he is in, thus giving a bigger scope to an attacker