3. Suppose that the published Diffie-Hellman prime and base are. reen tively, p = 37 and s = 6. If Alice sends Bob the number a = 36 and Bob sends B = 31 to Alice, find the key on which they have agreed. %3D
3. Suppose that the published Diffie-Hellman prime and base are. reen tively, p = 37 and s = 6. If Alice sends Bob the number a = 36 and Bob sends B = 31 to Alice, find the key on which they have agreed. %3D
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Show work question 3
![4.5. Key Agreement
305
What makes the recovery of this key so easy? [Hint: Look at a table of
ralues of 6 (mod 37).J From Bob and Alice's viewpoint what would
be a better choice of s ?
251 and base s = 53 are published. Alice
4. Suppose the prime p
and Bob want to use the Diffie-Hellman key agreement protocol to
establish an 8-bit keyword for binary Vigenère encipherment. Alice
selects a number at random: a =
random: 6 = 55. What is the key that they agree on?
%3D
63. Bob also selects a number at
5. Alice and Bob are using the Diffie-Hellman key agreement protocol to
agree on a key for a shift cipher. Suppose that the public prime and
Dase are p = 23 and s = 5, and that Bob's private key is b = 6. If he
%3D
receives the message
21, KLSQSOSCW,](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0a82f2ef-b64e-48d1-827b-e8fa8abd0a3f%2Fba5f8436-e59f-4556-86f6-f5568caeadeb%2Fkwlro9s_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4.5. Key Agreement
305
What makes the recovery of this key so easy? [Hint: Look at a table of
ralues of 6 (mod 37).J From Bob and Alice's viewpoint what would
be a better choice of s ?
251 and base s = 53 are published. Alice
4. Suppose the prime p
and Bob want to use the Diffie-Hellman key agreement protocol to
establish an 8-bit keyword for binary Vigenère encipherment. Alice
selects a number at random: a =
random: 6 = 55. What is the key that they agree on?
%3D
63. Bob also selects a number at
5. Alice and Bob are using the Diffie-Hellman key agreement protocol to
agree on a key for a shift cipher. Suppose that the public prime and
Dase are p = 23 and s = 5, and that Bob's private key is b = 6. If he
%3D
receives the message
21, KLSQSOSCW,
![(c) Which numbers are generators?
(a) 5 = 2 (mod 17)
(b) 10 = 4 (mod 12)
(c) 2" = 1024 (mod 3027)
(d) 23 = 25 (mod 26)
oval
idiescl ler
3. Suppose that the published Diffie-Hellman prime and base are, resnes.
6. If Alice sends Bob the number a = 36 and
tively, p
Bob sends B = 31 to Alice, find the key on which they have agreed.
37 and s =
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0a82f2ef-b64e-48d1-827b-e8fa8abd0a3f%2Fba5f8436-e59f-4556-86f6-f5568caeadeb%2F0pi8vfg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(c) Which numbers are generators?
(a) 5 = 2 (mod 17)
(b) 10 = 4 (mod 12)
(c) 2" = 1024 (mod 3027)
(d) 23 = 25 (mod 26)
oval
idiescl ler
3. Suppose that the published Diffie-Hellman prime and base are, resnes.
6. If Alice sends Bob the number a = 36 and
tively, p
Bob sends B = 31 to Alice, find the key on which they have agreed.
37 and s =
%3D
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