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Merged
merged 6 commits into from
Nov 4, 2019
Merged

Porta cipher #1550

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b55cb5f
directory_writer
mrvnmchm Nov 2, 2019
5de2ec0
add porta cipher for #1492
mrvnmchm Nov 2, 2019
fec2940
formatting and one line comprehensions
mrvnmchm Nov 4, 2019
e5e5fba
remove directory_writer
mrvnmchm Nov 4, 2019
9ff2f60
indentions
mrvnmchm Nov 4, 2019
691b7e0
Wrap long lines
cclauss Nov 4, 2019
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128 changes: 61 additions & 67 deletions ciphers/porta_cipher.py
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Original file line number Diff line number Diff line change
@@ -1,107 +1,100 @@
alphabet = {
"A": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"]], "B": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"]],
"C": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["Z", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y"]], "D": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["Z", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y"]],
"E": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["Y", "Z", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X"]], "F": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["Y", "Z", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X"]],
"G": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["X", "Y", "Z", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W"]], "H": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["X", "Y", "Z", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W"]],
"I": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["W", "X", "Y", "Z", "N", "O", "P", "Q", "R", "S", "T", "U", "V"]], "J": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["W", "X", "Y", "Z", "N", "O", "P", "Q", "R", "S", "T", "U", "V"]],
"K": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["V", "W", "X", "Y", "Z", "N", "O", "P", "Q", "R", "S", "T", "U"]], "L": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["V", "W", "X", "Y", "Z", "N", "O", "P", "Q", "R", "S", "T", "U"]],
"M": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["U", "V", "W", "X", "Y", "Z", "N", "O", "P", "Q", "R", "S", "T"]], "N": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["U", "V", "W", "X", "Y", "Z", "N", "O", "P", "Q", "R", "S", "T"]],
"O": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["T", "U", "V", "W", "X", "Y", "Z", "N", "O", "P", "Q", "R", "S"]], "P": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["T", "U", "V", "W", "X", "Y", "Z", "N", "O", "P", "Q", "R", "S"]],
"Q": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["S", "T", "U", "V", "W", "X", "Y", "Z", "N", "O", "P", "Q", "R"]], "R": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["S", "T", "U", "V", "W", "X", "Y", "Z", "N", "O", "P", "Q", "R"]],
"S": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["R", "S", "T", "U", "V", "W", "X", "Y", "Z", "N", "O", "P", "Q"]], "T": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["R", "S", "T", "U", "V", "W", "X", "Y", "Z", "N", "O", "P", "Q"]],
"U": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "N", "O", "P"]], "V": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "N", "O", "P"]],
"W": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "N", "O"]], "X": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "N", "O"]],
"Y": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"],
["O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "N"]], "Z": [["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M"], ["O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "N"]]}


def generateTable(key):
"A": ("ABCDEFGHIJKLM", "NOPQRSTUVWXYZ"),
"B": ("ABCDEFGHIJKLM", "NOPQRSTUVWXYZ"),
"C": ("ABCDEFGHIJKLM", "ZNOPQRSTUVWXY"),
"D": ("ABCDEFGHIJKLM", "ZNOPQRSTUVWXY"),
"E": ("ABCDEFGHIJKLM", "YZNOPQRSTUVWX"),
"F": ("ABCDEFGHIJKLM", "YZNOPQRSTUVWX"),
"G": ("ABCDEFGHIJKLM", "XYZNOPQRSTUVW"),
"H": ("ABCDEFGHIJKLM", "XYZNOPQRSTUVW"),
"I": ("ABCDEFGHIJKLM", "WXYZNOPQRSTUV"),
"J": ("ABCDEFGHIJKLM", "WXYZNOPQRSTUV"),
"K": ("ABCDEFGHIJKLM", "VWXYZNOPQRSTU"),
"L": ("ABCDEFGHIJKLM", "VWXYZNOPQRSTU"),
"M": ("ABCDEFGHIJKLM", "UVWXYZNOPQRST"),
"N": ("ABCDEFGHIJKLM", "UVWXYZNOPQRST"),
"O": ("ABCDEFGHIJKLM", "TUVWXYZNOPQRS"),
"P": ("ABCDEFGHIJKLM", "TUVWXYZNOPQRS"),
"Q": ("ABCDEFGHIJKLM", "STUVWXYZNOPQR"),
"R": ("ABCDEFGHIJKLM", "STUVWXYZNOPQR"),
"S": ("ABCDEFGHIJKLM", "RSTUVWXYZNOPQ"),
"T": ("ABCDEFGHIJKLM", "RSTUVWXYZNOPQ"),
"U": ("ABCDEFGHIJKLM", "QRSTUVWXYZNOP"),
"V": ("ABCDEFGHIJKLM", "QRSTUVWXYZNOP"),
"W": ("ABCDEFGHIJKLM", "PQRSTUVWXYZNO"),
"X": ("ABCDEFGHIJKLM", "PQRSTUVWXYZNO"),
"Y": ("ABCDEFGHIJKLM", "OPQRSTUVWXYZN"),
"Z": ("ABCDEFGHIJKLM", "OPQRSTUVWXYZN"),
}


def generate_table(key):
"""
>>> generateTable('marvin')
[[['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R', 'S', 'T']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R', 'S', 'T']]]
"""
table = []
for char in key.upper():
table.append(alphabet[char])
return table
>>> generate_table('marvin')
[('ABCDEFGHIJKLM', 'UVWXYZNOPQRST'), ('ABCDEFGHIJKLM', 'NOPQRSTUVWXYZ'), ('ABCDEFGHIJKLM', 'STUVWXYZNOPQR'), ('ABCDEFGHIJKLM', 'QRSTUVWXYZNOP'), ('ABCDEFGHIJKLM', 'WXYZNOPQRSTUV'), ('ABCDEFGHIJKLM', 'UVWXYZNOPQRST')]
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These long lines need to be wrapped.

"""
return [alphabet[char] for char in key.upper()]


def encrypt(key, words):
"""
>>> encrypt('marvin', 'jessica')
'QRACRWU'
"""
>>> encrypt('marvin', 'jessica')
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This indenting is not needed or desirable.

'QRACRWU'
"""
cipher = ""
count = 0
table = generateTable(key)
table = generate_table(key)
for char in words.upper():
cipher += getOpponent(table[count], char)
cipher += get_opponent(table[count], char)
count = (count + 1) % len(table)
return cipher


def decrypt(key, words):
"""
>>> decrypt('marvin', 'QRACRWU')
'JESSICA'
"""
>>> decrypt('marvin', 'QRACRWU')
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Same.

'JESSICA'
"""
return encrypt(key, words)


def getPosition(table, char):
"""
>>> table = [[['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R', 'S', 'T']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R', 'S', 'T']]]
>>> getPosition(table, 'A')
(None, None)
def get_position(table, char):
"""
>>> table = [('ABCDEFGHIJKLM', 'UVWXYZNOPQRST'), ('ABCDEFGHIJKLM', 'NOPQRSTUVWXYZ'), ('ABCDEFGHIJKLM', 'STUVWXYZNOPQR'), ('ABCDEFGHIJKLM', 'QRSTUVWXYZNOP'), ('ABCDEFGHIJKLM', 'WXYZNOPQRSTUV'), ('ABCDEFGHIJKLM', 'UVWXYZNOPQRST')]
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Same.

>>> get_position(table, 'A')
(None, None)
"""
row = -1

if char in table[0]:
row = 0
elif char in table[1]:
row = 1

if row != -1:
return (row, table[row].index(char))
else:
return (None, None)
return (None, None) if row == -1 else (row, table[row].index(char))


def getOpponent(table, char):
"""
>>> table = [[['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R', 'S', 'T']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V']], [['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M'], ['U', 'V', 'W', 'X', 'Y', 'Z', 'N', 'O', 'P', 'Q', 'R', 'S', 'T']]]
>>> getOpponent(table, 'A')
'A'
def get_opponent(table, char):
"""
row, col = getPosition(table, char.upper())
>>> table = [('ABCDEFGHIJKLM', 'UVWXYZNOPQRST'), ('ABCDEFGHIJKLM', 'NOPQRSTUVWXYZ'), ('ABCDEFGHIJKLM', 'STUVWXYZNOPQR'), ('ABCDEFGHIJKLM', 'QRSTUVWXYZNOP'), ('ABCDEFGHIJKLM', 'WXYZNOPQRSTUV'), ('ABCDEFGHIJKLM', 'UVWXYZNOPQRST')]
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Same.

>>> get_opponent(table, 'A')
'A'
"""
row, col = get_position(table, char.upper())

if row == 1:
return table[0][col]
elif row == 0:
return table[1][col]
else:
return char
return table[1][col] if row == 0 else char


if __name__ == "__main__":
"""
ENTER KEY: marvin
ENTER TEXT TO ENCRYPT: jessica
ENCRYPTED: QRACRWU
DECRYPTED WITH KEY: JESSICA
"""
ENTER KEY: marvin
ENTER TEXT TO ENCRYPT: jessica
ENCRYPTED: QRACRWU
DECRYPTED WITH KEY: JESSICA
"""
key = input("ENTER KEY: ")
text = input("ENTER TEXT TO ENCRYPT: ")
cipher_text = encrypt(key, text)
Expand All @@ -110,4 +103,5 @@ def getOpponent(table, char):
print("DECRYPTED WITH KEY: " + decrypt(key, cipher_text))

import doctest

doctest.testmod()