Hacking Secret Ciphers with Python
Chapter 18 – Hacking the Simple Substitution Cipher 261 There must be a value for the pattern key first before we can append wor ...
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Lines 5 1 and 5 2 call the main() ...
Chapter 18 – Hacking the Simple Substitution Cipher 263 2 5. print(message) 2 6. print() 2 7. print('Copying hacked message to c ...
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else: If a letter in mapA[lette ...
Chapter 18 – Hacking the Simple Substitution Cipher 265 def hackSimpleSub(message): intersectedMap = getBlankCipherletterMappin ...
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Hacking the Simple Substitution C ...
Chapter 18 – Hacking the Simple Substitution Cipher 267 wordPat = makeWordPatterns.getWordPattern('OLQIHXIRCKGNZ') wordPat 0. ...
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But since the letters in OLQIHXIR ...
Chapter 18 – Hacking the Simple Substitution Cipher 269 {'A': [], 'C': [], 'B': ['S', 'D'], 'E': [], 'D': [], 'G': [], 'F': [], ...
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... letterMapping3 = simpleSubHac ...
Chapter 18 – Hacking the Simple Substitution Cipher 271 But since we know K decrypts to A, we can remove A from the list of pote ...
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http://inventwithpython.com/hac ...
Chapter 18 – Hacking the Simple Substitution Cipher 273 1 1. nonLettersOrSpacePattern = re.compile('[^A-Z\s]') The simple substi ...
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Like all our previous hacking pro ...
Chapter 18 – Hacking the Simple Substitution Cipher 275 'W': ['C'], 'X': ['N'], 'Y': ['F'], 'Z': ['Z']} In the above example, th ...
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Adding Letters to a Cipherletter ...
Chapter 18 – Hacking the Simple Substitution Cipher 277 letterMapping[cipherword[i]].append(candidate[i]) The if statement on ...
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If the list of potential decrypti ...
Chapter 18 – Hacking the Simple Substitution Cipher 279 remove 'N' from the list of what 'A' could map to. So 'A' then maps ...
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The next part of the code creates ...
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