(a) (10 points) Alice chooses q = 101 and p = 8081. Alice selects h =...
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(a) (10 points) Alice chooses q = 101 and p = 8081. Alice selects h = 3 and calculate g = h(p-1)/9 mod p = 6968. Alice chooses x = 61 as the private key and calculate public key y = g* mod p = 2038. Now Alice can send a message to Bob. Assume that h(M)= 5000 and Alice chooses k = 61. Calculate the value of signature pair (r,s) and what would be the value of v calculated by bob? Does Bob accept this message? (b) (10 points) List two disputes that can arise in the context of message authentication. (a) (10 points) Alice chooses q = 101 and p = 8081. Alice selects h = 3 and calculate g = h(p-1)/9 mod p = 6968. Alice chooses x = 61 as the private key and calculate public key y = g* mod p = 2038. Now Alice can send a message to Bob. Assume that h(M)= 5000 and Alice chooses k = 61. Calculate the value of signature pair (r,s) and what would be the value of v calculated by bob? Does Bob accept this message? (b) (10 points) List two disputes that can arise in the context of message authentication.
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a Given parameters q 101 p 8081 h 3 x 61 k 61 hM 5000 Calculate g g hp1q mod p g 380811101 mod 8081 ... View the full answer
Related Book For
Computer Networking A Top-Down Approach
ISBN: 978-0136079675
5th edition
Authors: James F. Kurose, Keith W. Ross
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