Rail Fence Cipher* • Objective: Using any language, implement Rail Fence encryption and decryption algorithm. • Procedure: 1. Read from the user the plain text. 2. Perform the Caser encryption algorithm and display ciphertext 3. Perform the Caser decryption algorithm and display the resulting plaintext

computer science- Distinguish between the methodologies, techniques, and tools utilised in organisations for the development and use of information systems.

In this problem, you will implement a transposition cipher that, instead of dividing the original text into odd and even characters, separates it into three sets of characters. As an example, we will use this 1977 quote by Digital Equipment Corp. president Ken Olson -- "There is no reason anyone would want a computer in their home." (Spaces are represented with the square u-like character.) There is no reason anyone would want a computer in their home. Rail 1: T r S d i t i h a C. e Rail 2: e a u a u in h Rail 3: a W n. m m Example three-rail transposition. The resulting encrypted text is produced by reading the text horizontally, i.e., adding the three rails: Rail 1 + Rail 2 + Rail 3 = **“Trinrs yeoda cpeitihehesoeoao u naournhro.e annnwlwt mt e m" (without the quotes). Requirements: Implement the three-rail transposition cipher above, placing your code in the file p4_2.py (template I provided, replace comment at the beginning of the file with your own code). Feel free to develop your…

Mailings Review View Help ain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing Exercises 1. Write a program that prompts the user to enter their gross salary and then a percentage for their payroll deductions (such as 25%). The program should compute the user's net salary and display it to the user. Also, write up a report explaining how you used the Prompt, Then Read and the Input-Process-Output templates in your program. 2. Write a program that prompts the user to enter their full name into three string variables. Display the name in First, Middle, Last format and then in Last, First, Middle format. What templates did you use in writing this program? 3. The area of a circle is found with the formula: A = r². Write a program that prompts the user to enter the radius of a circle and then displays the circle's area. Use the value 3.14159 for T. What templates were used in this program? 4. Write a program that prompts the user to enter a greeting and…

Full Implementation (user input in red) Welcome to the Caesar Cipher This program encrypts and decrypts text using Caesar Cipher. Would you like to encrypt (e) or decrypt (d): d Would you like to read from a file (f) or the console (c)? c What message would you like to decrypt: LIPPS ASVPH What is the shift number: 4 HELLO WORLD Would you like to encrypt or decrypt another message? (y/n): y Would you like to encrypt (e) or decrypt (d): e Would you like to rea from a file (f) or the console What message would you like to encrypt: Hello World What is the shift number: 4 (c) ? c LIPPS ASVPH Would you like to encrypt or decrypt another message? (y/n): y Would you like to encrypt (e) or decrypt (d): e Would you like to read from a file (f) or the console (c) ? f Enter a filename: something_silly.txt Invalid Filename Enter a filename: messages.txt What is the shift number: 4 6 Output written to results.txt Would you like to encrypt or decrypt another message? (y/n): n Thanks for using the…