Which of the following is a valid disadvantage of the PRNG based on MAC function?
(a) It has a high throughput
(b) It takes twice the execution time
(c) It is hardware intensive and can only work on high end processors
(d) none of the mentioned
The question was asked during an interview for a job.
Question is taken from CCM, GCM and Key Wrapping topic in section Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security