problem 1:

Illustrate the authentication process in the synchronous token system?

problem 2:

Illustrate the following biometric methods:- (i) Iris scan, (ii) Finger print scan, (iii) Retina Scan and (iv) Voice Recognition. Your answer must consider the following: the data storage requirements, the biometric characteristic which discriminates them, accuracy and the user enrolment procedure.

problem 3:

The cost of ownership of dissimilar authentication systems varies. Give an explanation about the various costs associated with implementation of following different types of authentication system: software tokens, hardware tokens and biometrics to demonstrate the above sentence.

problem 4:

Illustrate out the five (5) best practices which can be executed as countermeasures against dictionary attacks.