0 votes 0 votes total number of keys saved for a set of 10 individuals to be able to communicate with each other using public key compared to of secret key crypto systems are Vasu_gate2017 asked Jan 25, 2017 Vasu_gate2017 331 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 1 votes 1 votes no of keys possible in assymmetric(public key) key cryptography is n(n-1)/2= 10(9)/2=45 no of keys possible in symmetric key(private key ) cryptography is 2n =20 so keys saved are 45-20=25 focus _GATE answered Jan 25, 2017 selected Jan 25, 2017 by Vasu_gate2017 focus _GATE comment Share Follow See all 0 reply Please log in or register to add a comment.
3 votes 3 votes In public key cryptography, every individual has 2 keys(public and private). So, here 20 keys. In secret key cryptography, for every possible pair one key is required. Possible pairs are 10C2=45 So, 25 keys are saved. Lucky sunda answered Jan 25, 2017 Lucky sunda comment Share Follow See all 0 reply Please log in or register to add a comment.