Alice and Bob use the ElGamal scheme with a common prime q= 131 and a primitive root a = 6. Let Bob’s public key be YB= 3. A. What is the ciphertext of M=9 if Alice chooses the random integer k=4?
Alice and Bob use the ElGamal scheme with a common prime q= 131 and a primitive root a = 6. Let Bob’s public key be YB= 3. A. What is the ciphertext of M=9 if Alice chooses the random integer k=4?
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
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![Alice and Bob use the ElGamal scheme with a common prime q= 131 and a primitive root a = 6. Let Bob's public
key be YB= 3.
A. What is the ciphertext of M=9 if Alice chooses the random integer k=4?
B. If Alice uses the same k to encrypt two messages M1 and M2 as (12, 65) and (12, 64), what is the relation
between Mj and M2?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F87cc40d5-992b-4f83-9dca-93837a8dae60%2Fefaddac1-4d03-4ba4-812e-dd8f10e9b426%2Fvmh8mm_processed.png&w=3840&q=75)
Transcribed Image Text:Alice and Bob use the ElGamal scheme with a common prime q= 131 and a primitive root a = 6. Let Bob's public
key be YB= 3.
A. What is the ciphertext of M=9 if Alice chooses the random integer k=4?
B. If Alice uses the same k to encrypt two messages M1 and M2 as (12, 65) and (12, 64), what is the relation
between Mj and M2?
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