Hacking Secret Ciphers with Python
Chapter 1 – Making Paper Cryptography Tools 1 MAKING PAPER CRYPTOGRAPHY TOOLS Topics Covered In This Chapter: What is cryptogr ...
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What is Cryptography? Look at the f ...
Chapter 1 – Making Paper Cryptography Tools 3 Figure 1-1. Samuel Morse April 27, 1791 – April 2, 1872 Figure 1-2. Alfred Vail Se ...
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ciphertext). A cipher is a set of r ...
Chapter 1 – Making Paper Cryptography Tools 5 Figure 1-4. The inner circle of the cipher wheel cutout. ...
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Figure 1-5. The outer circle of the ...
Chapter 1 – Making Paper Cryptography Tools 7 Figure 1-6. Cutting out the cipher wheel circles. Figure 1-7. The cut-out circles. ...
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How to Encrypt with the Cipher Whee ...
Chapter 1 – Making Paper Cryptography Tools 9 Figure 1- 10. A message encrypted with the cipher wheel. Each letter on the outer ...
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A Different Cipher Tool: The St. C ...
Chapter 1 – Making Paper Cryptography Tools 11 Practice Exercises, Chapter 1, Set A Practice exercises can be found at http://in ...
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key is 26 or more, we should subtr ...
Chapter 1 – Making Paper Cryptography Tools 13 To decrypt, you will have to understand what negative numbers are. If you don’t k ...
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If we encrypt the word “KITTEN” wi ...
Chapter 1 – Making Paper Cryptography Tools 15 the work for a large amount of text in less than a second! But we need to learn h ...
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INSTALLING PYTHON Topics Covered I ...
Chapter 2 – Downloading and Installing Python 17 Downloading and Installing Python Before we can begin programming, you’ll need ...
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OS X Instructions The installation ...
Chapter 2 – Downloading and Installing Python 19 If your operating system is Ubuntu or Linux, start IDLE by clicking Application ...
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going back to the previous chapter ...
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