ITM 517 Module 3 Discussion

Read about authentication here, http://flylib.com/books/en/4.283.1.12/1/. Three types of authentication are: 1) something you know, 2) something you have, and 3) something you are. Define authentication and provide an example. Which type(s) of authentication do you prefer? Explain why. What are the relationships between information security principle(s) (confidentiality, integrity, and availability) and authentication?