3 votes 3 votes Computer Networks computer-networks cryptography + – Himanshu1 asked Dec 6, 2015 Himanshu1 2.2k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 10 votes 10 votes for diffie hellman n and n-1/2 should be prime 1)107 and 107-1/2=53 both are prime 2)37 is prime but 37-1/2=18 is not prime 3)47 and 47-1/2=23 are prime 4)109 is prime but 109-1/2-54 is not prime so ans is 1 and 3 ie c Pooja Palod answered Dec 7, 2015 selected Dec 7, 2015 by Himanshu1 Pooja Palod comment Share Follow See all 4 Comments See all 4 4 Comments reply Himanshu1 commented Dec 7, 2015 reply Follow Share for diffie hellman n and n-1/2 should be prime , why so ? 0 votes 0 votes Pooja Palod commented Dec 7, 2015 reply Follow Share check this one D.notes 5th point http://www.math.ucla.edu/~baker/40/handouts/rev_DH/node1.html 1 votes 1 votes `JEET commented Jan 10, 2019 reply Follow Share @Pooja Palod Please use brackets in the above answer. 0 votes 0 votes PiratedVirus commented Jan 15, 2019 reply Follow Share its n and (n-1)/2 2 votes 2 votes Please log in or register to add a comment.
1 votes 1 votes answer = option A ii and iii cannot be correct as they are close to a perfect square amarVashishth answered Dec 6, 2015 amarVashishth comment Share Follow See all 3 Comments See all 3 3 Comments reply Anurag_s commented Dec 6, 2015 reply Follow Share Could u explain why so? N is common chosen prime no here i suppose 0 votes 0 votes amarVashishth commented Dec 6, 2015 reply Follow Share Do not have a proof, Today. 0 votes 0 votes Himanshu1 commented Dec 6, 2015 reply Follow Share given answer C 0 votes 0 votes Please log in or register to add a comment.