(d) Consider the RSA crypto scheme with the following configuration: = Alice's public key is...
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(d) Consider the RSA crypto scheme with the following configuration: = • Alice's public key is (na, ea) = (33, 7), her private key is da = 3. • Bob's public key is (no, eb) (65,7), his private key is d = 7. • Eve's public key is (ne, ee) = (77, 13), her private key is de = 37. All key pairs are used for both signing and encryption/decryption. Alice sends to Bob the cipher text: I 9,59 (i) Briefly explain why there is an attack that allows Eve to obtain the plain text of this cipher text. (5 marks) (ii) Demonstrate the attack by showing how Eve can obtain the plain text of the message that Alice sends to Bob. (d) Consider the RSA crypto scheme with the following configuration: = • Alice's public key is (na, ea) = (33, 7), her private key is da = 3. • Bob's public key is (no, eb) (65,7), his private key is d = 7. • Eve's public key is (ne, ee) = (77, 13), her private key is de = 37. All key pairs are used for both signing and encryption/decryption. Alice sends to Bob the cipher text: I 9,59 (i) Briefly explain why there is an attack that allows Eve to obtain the plain text of this cipher text. (5 marks) (ii) Demonstrate the attack by showing how Eve can obtain the plain text of the message that Alice sends to Bob.
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i Explanation of the Vulnerability Shared Exponent e Both Alice and Bob use the same public exponent ... View the full answer
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Computer Networking A Top-Down Approach
ISBN: 978-0136079675
5th edition
Authors: James F. Kurose, Keith W. Ross
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