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1. Decrypt these messages that were encrypted using the Caesar cipher. a) EOXH MHDQV b) WHVW WRGDB c) HDW GLP VXP 2. Suppose that the ciphertext DVE CFMV KF NFEUVI, REU KYRK ZJ KYV JVVU FW JTZVETV was produced by encrypting a plaintext message using a shift cipher. What is the original plaintext? 3. Encrypt the message GRIZZLY BEARS using blocks of five letters and the transposition cipher based on the permutation of (1, 2, 3, 4, 5) with o(1) = 3, 0(2) = 5, o(3) = 1, 0(4)=2, and a(5) = 4. For this exercise, use the letter X as many times as necessary to fill out the final block of fewer than five letters. 4. Decrypt the message EABW EFRO ATMR ASIN which

1. Decrypt these messages that were encrypted using the Caesar cipher. a) EOXH MHDQV b) WHVW WRGDB c) HDW GLP VXP 2. Suppose that the ciphertext DVE CFMV KF NFEUVI, REU KYRK ZJ KYV JVVU FW JTZVETV was produced by encrypting a plaintext message using a shift cipher. What is the original plaintext? 3. Encrypt the message GRIZZLY BEARS using blocks of five letters and the transposition cipher based on the permutation of (1, 2, 3, 4, 5) with o(1) = 3, 0(2) = 5, o(3) = 1, 0(4)=2, and a(5) = 4. For this exercise, use the letter X as many times as necessary to fill out the final block of fewer than five letters. 4. Decrypt the message EABW EFRO ATMR ASIN which

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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e^1/x
______
x^2

1. Decrypt these messages that were encrypted using the Caesar cipher. a) EOXH MHDQV b) WHVW WRGDB c) HDW GLP VXP 2. Suppose that the ciphertext DVE CFMV KF NFEUVI, REU KYRK ZJ KYV JVVU FW JTZVETV was produced by encrypting a plaintext message using a shift cipher. What is the original plaintext? 3. Encrypt the message GRIZZLY BEARS using blocks of five letters and the transposition cipher based on the permutation of (1, 2, 3, 4, 5) with o(1) = 3, 0(2) = 5, o(3) = 1,0(4) = 2, and o(5) = 4. For this exercise, use the letter X as many times as necessary to fill out the final block of fewer than five letters. 4. Decrypt the message EABW EFRO ATMR ASIN which Is the ciphertext produced by encrypting a plaintext message using the transposition cipher with blocks of four letters and the permutation o of (1, 2, 3, 4} defined by 0(1) = 3, 0(2) = 1, o(3) = 4, and o(4) = 2
Transcribed Image Text:1. Decrypt these messages that were encrypted using the Caesar cipher. a) EOXH MHDQV b) WHVW WRGDB c) HDW GLP VXP 2. Suppose that the ciphertext DVE CFMV KF NFEUVI, REU KYRK ZJ KYV JVVU FW JTZVETV was produced by encrypting a plaintext message using a shift cipher. What is the original plaintext? 3. Encrypt the message GRIZZLY BEARS using blocks of five letters and the transposition cipher based on the permutation of (1, 2, 3, 4, 5) with o(1) = 3, 0(2) = 5, o(3) = 1,0(4) = 2, and o(5) = 4. For this exercise, use the letter X as many times as necessary to fill out the final block of fewer than five letters. 4. Decrypt the message EABW EFRO ATMR ASIN which Is the ciphertext produced by encrypting a plaintext message using the transposition cipher with blocks of four letters and the permutation o of (1, 2, 3, 4} defined by 0(1) = 3, 0(2) = 1, o(3) = 4, and o(4) = 2
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