Access Control Approaches

Discuss the four processes involved in access control approaches and the types of authentication mechanisms described in Chapter 12 of your text. Provide at least one example of each type of authentication mechanism that you use on a regular basis to access a network system. What are some of the challenges associated with physical security in these authentication mechanisms? Are there any cryptography or encryption processes involved? After posting your initial response, please respond to two of your peers by the posted due date. Requirements: ..