Answer the following statements true (T) or false (F)

1. User authentication is the fundamental building block and the primary
line of defense.
2. Identification is the means of establishing the validity of a claimed
identity provided by a user.
3. Depending on the details of the overall authentication
system, the registration authority issues some sort of electronic credential to the subscriber.
4. Many users choose a password that is too short or too easy to guess.
5. User authentication is a procedure that allows communicating parties to
verify that the contents of a received message have not been altered and that the source is authentic.

1. True
2. True
3. False
4. True
5. False