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https://github.com/autistic-symposium/sec-pentesting-toolkit.git
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28 lines
716 B
Python
28 lines
716 B
Python
def caesar(plaintext,shift):
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alphabet=["a","b","c","d","e","f","g","h","i","j","k","l",
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"m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
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#Create our substitution dictionary
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dic={}
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for i in range(0,len(alphabet)):
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dic[alphabet[i]]=alphabet[(i+shift)%len(alphabet)]
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#Convert each letter of plaintext to the corrsponding
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#encrypted letter in our dictionary creating the cryptext
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ciphertext=""
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for l in plaintext.lower():
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if l in dic:
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l=dic[l]
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ciphertext+=l
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return ciphertext
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#Example useage
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plaintext="the cat sat on the mat"
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print "Plaintext:", plaintext
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print "Cipertext:",caesar(plaintext,3)
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#This will result in:
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#Plaintext: the cat sat on the mat
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#Cipertext: wkh fdw vdw rq wkh pdw
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