1.

For a network with N nodes, how many master keys are present?(a) N(N-1)/2(b) N(c) N(N+1)/2(d) N/2This question was addressed to me in a national level competition.My doubt is from Symmetric Key Distribution topic in section Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security

Answer»

The correct CHOICE is (b) N

For EXPLANATION: Each NODE has a master key to RECEIVE the session keys from the Key Distribution CENTRE (KDC).



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