Question

Intel digital random number generator uses which among the following methods to generate random bits?

(a) pulse detectors of ionizing radiating events

(b) gas discharge tubes

(c) wind resistance

(d) thermal noise

This question was addressed to me in a national level competition.

My enquiry is from Pseudorandom Number Generators and Stream Ciphers topic in section Pseudorandom Number Generation and Stream Ciphers and More Block Ciphers of Cryptograph & Network Security

Answer 1

Correct choice is (d) thermal noise

To explain I would say: Intel DRNGs use thermal noise for generation of the random bits.