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(a) The following message was encoded using an affine cryptosystem that encodes A as M and B as B. CKMYCZMLCOCWKOHUCKDOHLMZLLNMZGZOEVUFYU Find the plaintext. (b) The following message was encoded using an affine cryptosystem that encodes A as G and C as C. MQTNOELNWNETEHCEWHISCFKYHHFYKGCCEIPXQWFISCF Find the plaintext. (c) The following message was encoded using an affine cryptosystem that encodes R as S and S as D. OMFMFNSOMNDSFNDLADOMNOSFNDLAJNAALOZAUFSDONAU Find the plaintext.

(a) The following message was encoded using an affine cryptosystem that encodes A as M and B as B. CKMYCZMLCOCWKOHUCKDOHLMZLLNMZGZOEVUFYU Find the plaintext. (b) The following message was encoded using an affine cryptosystem that encodes A as G and C as C. MQTNOELNWNETEHCEWHISCFKYHHFYKGCCEIPXQWFISCF Find the plaintext. (c) The following message was encoded using an affine cryptosystem that encodes R as S and S as D. OMFMFNSOMNDSFNDLADOMNOSFNDLAJNAALOZAUFSDONAU Find the plaintext.

Database System Concepts
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
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PLease do part A and C and please show step by step and explain

Exercise 9.2.18. (a) The following message was encoded using an affine cryptosystem that encodes A as M and B as B. CKMYCZMLCOZCWKOHUCKDOHLMZLLNMZGZOEVUFYU Find the plaintext. (b) The following message was encoded using an affine cryptosystem that encodes A as G and C as C. MQTNOELNWNETEHCEWHISCFKYHHFYKGCCEIPXQWFISCF Find the plaintext. (c) The following message was encoded using an affine cryptosystem that encodes R as S and S as D. OMFMFNSOMNDSFNDLADOMNOSFNDLAJNAALOZAUFSDONAU Find the plaintext.
Transcribed Image Text:Exercise 9.2.18. (a) The following message was encoded using an affine cryptosystem that encodes A as M and B as B. CKMYCZMLCOZCWKOHUCKDOHLMZLLNMZGZOEVUFYU Find the plaintext. (b) The following message was encoded using an affine cryptosystem that encodes A as G and C as C. MQTNOELNWNETEHCEWHISCFKYHHFYKGCCEIPXQWFISCF Find the plaintext. (c) The following message was encoded using an affine cryptosystem that encodes R as S and S as D. OMFMFNSOMNDSFNDLADOMNOSFNDLAJNAALOZAUFSDONAU Find the plaintext.
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