Cracking Codes with Python

“Cracking Codes with Python” delves into the world of cryptography and programming by exploring how Python can be used to crack codes and ciphers. The book likely covers topics such as encryption techniques, decryption methods, and the implementation of cryptographic algorithms using Python programming. Readers can expect to learn how to analyze and break various types of codes, enhancing their understanding of both cryptography and Python programming simultaneously. The content is likely to be a practical guide that combines the principles of cryptography with hands-on coding examples to provide a comprehensive learning experience in the field of code-breaking.

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Chapter 17 - Hacking the Simple Substitution Cipher

17 HACKING THE SIMPLE SUBSTITUTION CIPHER “Encryption is fundamentally a private act. The act of encryption, in fact, removes information from the public realm. Even laws against cryptography reach o...

Hacking Secret Ciphers with Python

Cracking Codes with Python

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Cracking Codes with Python

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Cracking Codes with Python

Introduction

Cracking Codes with Python

INTRODUCTION “I couldn’t help but overhear, probably because I was eavesdropping.” —Anonymous If you could travel back to the early 1990s with this book, the contents of Chapter 23 that implement par...

Chapter 1 - Making Paper Cryptography Tools

Cracking Codes with Python

1 MAKING PAPER CRYPTOGRAPHY TOOLS “The encryption genie is out of the bottle.” —Jan Koum, WhatsApp founder Before we start writing cipher programs, let’s look at the process of encrypting and decrypt...

Chapter 2 -Programming in the Interactive Shell

Cracking Codes with Python

2 PROGRAMMING IN THE INTERACTIVE SHELL “The Analytical Engine has no pretensions whatever to originate anything. It can do whatever we know how to order it to perform.” —Ada Lovelace, October 1842 Be...

Chapter 3 - Strings and Writing Programs

Cracking Codes with Python

3 STRINGS AND WRITING PROGRAMS “The only way to learn a new programming language is by writing programs in it.” —Brian Kernighan and Dennis Ritchie, The C Programming Language Chapter 2 gave you enou...

Chapter 13 - A Modular Arithmetic Module for the Affine Cipher

Cracking Codes with Python

13 A MODULAR ARITHMETIC MODULE FOR THE AFFINE CIPHER “People have been defending their own privacy for centuries with whispers, darkness, envelopes, closed doors, secret handshakes, and couriers. The...

Chapter 4 - The Reverse Cipher

Cracking Codes with Python

4 THE REVERSE CIPHER “Every man is surrounded by a neighborhood of voluntary spies.” —Jane Austen, Northanger Abbey The reverse cipher encrypts a message by printing it in reverse order. So “Hello, w...

Chapter 5 - The Caesar Cipher

Cracking Codes with Python

5 THE CAESAR CIPHER “ BIG BROTHER IS WATCHING YOU.” —George Orwell , Nineteen Eighty-Four In Chapter 1 , we used a cipher wheel and a chart of letters and numbers to implement the Caesar cipher. In t...

Chapter 6 - Hacking the Caesar Cipher with Brute-Force

Cracking Codes with Python

6 HACKING THE CAESAR CIPHER WITH BRUTE-FORCE “Arab scholars . . . invented cryptanalysis, the science of unscrambling a message without knowledge of the key.” —Simon Singh, The Code Book We can hack ...