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In Cracking Codes with Python, you'll learn how to program in Python while making and breaking ciphers, which are used to encrypt secret messages. (No programming experience required!).

Table of Contents

Introduction

Chapter 1: Making Paper Cryptography Tools
Chapter 2: Installing Python
Chapter 3: The Interactive Shell
Chapter 4: Strings and Writing Programs
Chapter 5: The Reverse Cipher
Chapter 6: The Caesar Cipher
Chapter 7: Hacking the Caesar Cipher with the Brute-Force Technique
Chapter 8: Encrypting with the Transposition Cipher
Chapter 9: Decrypting with the Transposition Cipher
Chapter 10: Programming a Program to Test Our Program
Chapter 11: Encrypting and Decrypting Files
Chapter 12: Detecting English Programmatically
Chapter 13: Hacking the Transposition Cipher
Chapter 14: Making a Modular Arithmetic Module for the Multiplicative and Affine Ciphers
Chapter 15: Programming the Affine Cipher
Chapter 16: Hacking the Affine Cipher
Chapter 17: The Simple Substitution Cipher
Chapter 18: Hacking the Simple Substitution Cipher
Chapter 19: The Vigenere Cipher
Chapter 20: Frequency Analysis
Chapter 21: Hacking the Viginere Cipher
Chapter 22: The One-Time Pad Cipher
Chapter 23: Finding Prime Numbers
Chapter 24: Generating Keys for the RSA Cipher
Chapter 25: Public Key Cryptography and Programming the RSA Cipher

Appendix: Debugger

About the Author

Al Sweigart is a professional software developer who teaches programming to kids and adults. Sweigart has written several programming books for beginners, including Automate the Boring Stuff with Python, Scratch Programming Playground, and Invent Your Own Computer Games with Python (No Starch Press), and has developed a large following with his online tutorials.