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D. Keyed Columnar Permutation - Encode and Decode message using TRANSPOSITION key "MIXUP: Length of message: 28: Length of key: 5; Rows used: 5.6 Message: PERMUTATIONS ARE TRANSPOSITIONS Key: MIXUP ENCODE THE MESSAGE: DECODE THE MESSAGE: Thinking about it E. How are characters encoded/decoded differently from the other ciphers covered in class (Shift Ciphers, Permutation, and Vigenere)? PlayFair vs. Shift Ciphers: PlayFair vs: Permutation:

D. Keyed Columnar Permutation - Encode and Decode message using TRANSPOSITION key "MIXUP: Length of message: 28: Length of key: 5; Rows used: 5.6 Message: PERMUTATIONS ARE TRANSPOSITIONS Key: MIXUP ENCODE THE MESSAGE: DECODE THE MESSAGE: Thinking about it E. How are characters encoded/decoded differently from the other ciphers covered in class (Shift Ciphers, Permutation, and Vigenere)? PlayFair vs. Shift Ciphers: PlayFair vs: Permutation:

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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Please solve the rest of down from D-E parts only

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PlayFair Cipher A. Playfair - Encode: Use Playfair to Encode the message using a 5x5 matrix based on the key "LONG PASSWORD" (remember to use unique characters only) 1. P: PLAYFAIR MESSAGE K: LONG PASSWORD= LONGPASWRD L A B 1/J U O N G P S W R D C E F H M Q T X Y Z K V B. Use Playfair to Decode the message using the same matrix from the previous problem. Use X for padding, if necessary. Ciphertext: GNRXLVQAOWMNBMMZ Key: LONG PASSWORD= LONGPASWRD Permutation C. Simple Permutations - Encode message using TRANSPOSITION key "2,1,5,4,3": Message: PERMUTATIONS ARE TRANSPOSITIONS D. Keyed Columnar Permutation - Encode and Decode message using TRANSPOSITION key "MIXUP: Length of message: 28: Length of key: 5: Rows used: 5.6 Message: PERMUTATIONS ARE TRANSPOSITIONS Key: MIXUP ENCODE THE MESSAGE: DECODE THE MESSAGE: Thinking about it E. How are characters encoded/decoded differently from the other ciphers covered in class (Shift Ciphers, Permutation, and Vigenere)? PlayFair vs. Shift Ciphers: PlayFair vs: Permutation: PlayFair vs. Vigenere:
Transcribed Image Text:PlayFair Cipher A. Playfair - Encode: Use Playfair to Encode the message using a 5x5 matrix based on the key "LONG PASSWORD" (remember to use unique characters only) 1. P: PLAYFAIR MESSAGE K: LONG PASSWORD= LONGPASWRD L A B 1/J U O N G P S W R D C E F H M Q T X Y Z K V B. Use Playfair to Decode the message using the same matrix from the previous problem. Use X for padding, if necessary. Ciphertext: GNRXLVQAOWMNBMMZ Key: LONG PASSWORD= LONGPASWRD Permutation C. Simple Permutations - Encode message using TRANSPOSITION key "2,1,5,4,3": Message: PERMUTATIONS ARE TRANSPOSITIONS D. Keyed Columnar Permutation - Encode and Decode message using TRANSPOSITION key "MIXUP: Length of message: 28: Length of key: 5: Rows used: 5.6 Message: PERMUTATIONS ARE TRANSPOSITIONS Key: MIXUP ENCODE THE MESSAGE: DECODE THE MESSAGE: Thinking about it E. How are characters encoded/decoded differently from the other ciphers covered in class (Shift Ciphers, Permutation, and Vigenere)? PlayFair vs. Shift Ciphers: PlayFair vs: Permutation: PlayFair vs. Vigenere:
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Encryption:

Encryption is used to protect information from hacking.

Encryption techniques are

  • Symmetric encryption
  • Asymmetric encryption

 

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