(a) Suppose Alice and Bob use the simple encryption scheme in which c = (m + k) mod N and m = (c – k) mod N. Suppose that Eve knows that N = 4657. Suppose that she also manages to learn that the message m corresponding to c = 1322 is 3411. Can she infer the value for k? What is k?

(a) Suppose Alice and Bob use the simple encryption scheme in which c = (m + k) mod N and m = (c – k) mod N. Suppose that Eve knows that N = 4657. Suppose that she also manages to learn that the message m corresponding to c = 1322 is 3411. Can she infer the value for k? What is k?

Name: Discrete Math Problem on Cryptography Exercise 3.8.6: Deducing the key
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Description: Discrete Math Problem on Cryptography Exercise 3.8.6: Deducing the key from a single (plaintext, ciphertext) pair.About(a) Suppose Alice and Bob use the simple encryption scheme in which c = (m + k) mod N and m = (c – k) mod N. Suppose that Eveknows

Elements Of Modern Algebra

8th Edition

ISBN:9781285463230

Author:Gilbert, Linda, Jimmie

Publisher:Gilbert, Linda, Jimmie

Chapter2: The Integers

Section2.8: Introduction To Cryptography (optional)

Problem 6E

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