Authentication and Access Control

--Originally published at Computer and Information Security


Access control is a security technic that regulates access to resources on a system. There are two types of access control:

  • Physical that limit access to buildings, rooms, physical assets, etc.
  • Logical that limit connection to networks, system files and data.

All access control systems perform authentication in order to verify that the identity of the user is correct and he/she has permission to access resources.

Flickr photo by Michael Coghlan shared under a Creative Commons (BY) license.