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A simple scheme to encrypt text is as follows: You ask the user to enter a keyword and remove duplicate letters from it. • Fill the keyword and the remaining letters of the alphabet into a 5x5 square (Since there are only 25 squares, Z will not be changed) • Filling the keyword and the remaining letters should be done in sequence column by column. Example with the keyword slayer

A simple scheme to encrypt text is as follows: You ask the user to enter a keyword and remove duplicate letters from it. • Fill the keyword and the remaining letters of the alphabet into a 5x5 square (Since there are only 25 squares, Z will not be changed) • Filling the keyword and the remaining letters should be done in sequence column by column. Example with the keyword slayer

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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Problem Description A simple scheme to encrypt text is as follows: You ask the user to enter a keyword and remove duplicate letters from it. Fill the keyword and the remaining letters of the alphabet into a 5x5 square (Since there are only 25 squares, Z will not be changed) • Filling the keyword and the remaining letters should be done in sequence column by column. Example with the keyword slayer R M H. N. A D P. E F • To enerypt a letter, you find the last element in the letter's row and the clement with the same column(position) of the letter in the last row. (in this order). If the letter is already in the last row or column, you simply use the same letter. Space and new line will not be changed (same as the Z letter) Separate each letter with underscore () Your program needs to read a file called data txt and enerypt the content with the scheme above and the save the output in a file called data.enc. Example: Keyword = slayer Text to encrypt = hello output - UK_XE_UE_UE_VQ H- UK E- XE L- UE L- UE 0 -- VQ
Transcribed Image Text:Problem Description A simple scheme to encrypt text is as follows: You ask the user to enter a keyword and remove duplicate letters from it. Fill the keyword and the remaining letters of the alphabet into a 5x5 square (Since there are only 25 squares, Z will not be changed) • Filling the keyword and the remaining letters should be done in sequence column by column. Example with the keyword slayer R M H. N. A D P. E F • To enerypt a letter, you find the last element in the letter's row and the clement with the same column(position) of the letter in the last row. (in this order). If the letter is already in the last row or column, you simply use the same letter. Space and new line will not be changed (same as the Z letter) Separate each letter with underscore () Your program needs to read a file called data txt and enerypt the content with the scheme above and the save the output in a file called data.enc. Example: Keyword = slayer Text to encrypt = hello output - UK_XE_UE_UE_VQ H- UK E- XE L- UE L- UE 0 -- VQ
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