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BYU Math 495R
BYU Math 495R
  • About This Course
  • Setting Up Google Colab
  • Lab 1: LaTeX
    • LaTeX Basics
    • Typesetting Mathematics
    • Page Elements
    • The Process
    • Exercises
    • Bonus: Customization
  • Lab 2: Plotting
    • Line Plots
    • Scatter Plots and Histograms
    • Visualization and Analysis
    • Exercises
  • Lab 3: More Loops
    • Loop Tools
    • Nested Loops
    • The WHILE Loop
    • Exercises
  • Lab 4: Iterables
    • Tuples and Lists
    • Sets and Dictionaries
    • Itertools
    • Exercises
  • Lab 5: The Caesar Cipher
    • Encryption and Ciphers
    • Strings
    • Caesar (Shift) Cipher
    • Exercises
  • Lab 6: The Vigenère Cipher
    • Vigenère Encryption
    • Finding the Key Length
    • Exercises
  • Lab 7: Cracking Ciphers
    • Cipher Cracking Strategy
    • Caesar Groups
    • Cracking the Cipher
    • Exercises
  • Common Errors
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Lab 5: The Caesar Cipher¶

Open Lab Notebook in Google Colab

Learning Objectives

  1. Learn basic string (str) operations and processing tools.

  2. Encrypt messages with a shift cipher based on modular arithmetic.

  3. Decrypt Caesar ciphertext by brute force search.

Lab Outline

  • Encryption and Ciphers
  • Strings
  • Caesar (Shift) Cipher
  • Exercises
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Encryption and Ciphers
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Exercises
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