Hacking Secret Ciphers with Python
Chapter 8 – The Transposition Cipher, Encrypting 121 This if statement on line 44 ends up actually being one of the first lines ...
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Summary Whew! There were a lot of ...
Chapter 9 – The Transposition Cipher, Decrypting 123 DECRYPTING WITH THE TRANSPOSITION CIPHER Topics Covered In This Chapter: ...
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Unlike the Caesar cipher, the dec ...
Chapter 9 – The Transposition Cipher, Decrypting 125 Then start filling in the boxes with one character of the ciphertext per bo ...
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A Transposition Cipher Decryption ...
Chapter 9 – The Transposition Cipher, Decrypting 127 plaintext = [''] * numOfColumns The col and row variables point to wher ...
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plaintext = decryptMessage(myKey ...
Chapter 9 – The Transposition Cipher, Decrypting 129 21 / 7 3.0 This is useful because if a number does not divide evenly, ...
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4 math.ceil(4.2) 5 math.ceil(4 ...
Chapter 9 – The Transposition Cipher, Decrypting 131 string for each column of the grid. Using list replication, we can multiply ...
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transpositionDecrypt.py plaintex ...
Chapter 9 – The Transposition Cipher, Decrypting 133 the expression 10 < 5 and the expression 4 != 4 are both False, this mak ...
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Table 6-3: The not operator's tru ...
Chapter 9 – The Transposition Cipher, Decrypting 135 Order of Operations for Boolean Operators Just like the math operators have ...
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0 1 2 3 0 C 0 e 1 n 2 o 3 1 o 4 n ...
Chapter 9 – The Transposition Cipher, Decrypting 137 For our example decryption, plaintext will be ['Common s', 'ense is ', 'not ...
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PROGRAMMING A PROGRAM TO TEST OUR ...
Chapter 10 – Programming a Program to Test Our Program 139 You won’t know unless you test the encryptMessage() and decryptMessag ...
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message = ''.join(message) # con ...
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