import multiprocessing
import itertools
-from support.utilities import *
-from support.language_models import *
-from cipher.column_transposition import transpositions, transpositions_of
-
-from logger import logger
+from szyfrow.support.utilities import *
+from szyfrow.support.language_models import *
+# from szyfrow.column_transposition import transpositions, transpositions_of
# Where each piece of text ends up in the AMSCO transpositon cipher.
# 'index' shows where the slice appears in the plaintext, with the slice
same_each_row = 2
reverse_each_row = 3
-def amsco_transposition_positions(message, keyword,
+def amsco_positions(message, keyword,
fillpattern=(1, 2),
fillstyle=AmscoFillStyle.continuous,
fillcolumnwise=False,
grid shows the index of that slice and the start and end positions of the
plaintext that go to make it up.
- >>> amsco_transposition_positions(string.ascii_lowercase, 'freddy', \
+ >>> amsco_positions(string.ascii_lowercase, 'freddy', \
fillpattern=(1, 2)) # doctest: +NORMALIZE_WHITESPACE
[[AmscoSlice(index=3, start=4, end=6),
AmscoSlice(index=2, start=3, end=4),
current_fillpattern = list(reversed(current_fillpattern))
return [transpose(r, transpositions) for r in grid]
-def amsco_transposition_encipher(message, keyword,
+def amsco_encipher(message, keyword,
fillpattern=(1,2), fillstyle=AmscoFillStyle.reverse_each_row):
"""AMSCO transposition encipher.
- >>> amsco_transposition_encipher('hellothere', 'abc', fillpattern=(1, 2))
+ >>> amsco_encipher('hellothere', 'abc', fillpattern=(1, 2))
'hoteelhler'
- >>> amsco_transposition_encipher('hellothere', 'abc', fillpattern=(2, 1))
+ >>> amsco_encipher('hellothere', 'abc', fillpattern=(2, 1))
'hetelhelor'
- >>> amsco_transposition_encipher('hellothere', 'acb', fillpattern=(1, 2))
+ >>> amsco_encipher('hellothere', 'acb', fillpattern=(1, 2))
'hotelerelh'
- >>> amsco_transposition_encipher('hellothere', 'acb', fillpattern=(2, 1))
+ >>> amsco_encipher('hellothere', 'acb', fillpattern=(2, 1))
'hetelorlhe'
- >>> amsco_transposition_encipher('hereissometexttoencipher', 'encode')
+ >>> amsco_encipher('hereissometexttoencipher', 'encode')
'etecstthhomoerereenisxip'
- >>> amsco_transposition_encipher('hereissometexttoencipher', 'cipher', fillpattern=(1, 2))
+ >>> amsco_encipher('hereissometexttoencipher', 'cipher', fillpattern=(1, 2))
'hetcsoeisterereipexthomn'
- >>> amsco_transposition_encipher('hereissometexttoencipher', 'cipher', fillpattern=(1, 2), fillstyle=AmscoFillStyle.continuous)
+ >>> amsco_encipher('hereissometexttoencipher', 'cipher', fillpattern=(1, 2), fillstyle=AmscoFillStyle.continuous)
'hecsoisttererteipexhomen'
- >>> amsco_transposition_encipher('hereissometexttoencipher', 'cipher', fillpattern=(2, 1))
+ >>> amsco_encipher('hereissometexttoencipher', 'cipher', fillpattern=(2, 1))
'heecisoosttrrtepeixhemen'
- >>> amsco_transposition_encipher('hereissometexttoencipher', 'cipher', fillpattern=(1, 3, 2))
+ >>> amsco_encipher('hereissometexttoencipher', 'cipher', fillpattern=(1, 3, 2))
'hxtomephescieretoeisnter'
- >>> amsco_transposition_encipher('hereissometexttoencipher', 'cipher', fillpattern=(1, 3, 2), fillstyle=AmscoFillStyle.continuous)
+ >>> amsco_encipher('hereissometexttoencipher', 'cipher', fillpattern=(1, 3, 2), fillstyle=AmscoFillStyle.continuous)
'hxomeiphscerettoisenteer'
"""
- grid = amsco_transposition_positions(message, keyword,
+ grid = amsco_positions(message, keyword,
fillpattern=fillpattern, fillstyle=fillstyle)
ct_as_grid = [[message[s.start:s.end] for s in r] for r in grid]
return combine_every_nth(ct_as_grid)
-def amsco_transposition_decipher(message, keyword,
+def amsco_decipher(message, keyword,
fillpattern=(1,2), fillstyle=AmscoFillStyle.reverse_each_row):
"""AMSCO transposition decipher
- >>> amsco_transposition_decipher('hoteelhler', 'abc', fillpattern=(1, 2))
+ >>> amsco_decipher('hoteelhler', 'abc', fillpattern=(1, 2))
'hellothere'
- >>> amsco_transposition_decipher('hetelhelor', 'abc', fillpattern=(2, 1))
+ >>> amsco_decipher('hetelhelor', 'abc', fillpattern=(2, 1))
'hellothere'
- >>> amsco_transposition_decipher('hotelerelh', 'acb', fillpattern=(1, 2))
+ >>> amsco_decipher('hotelerelh', 'acb', fillpattern=(1, 2))
'hellothere'
- >>> amsco_transposition_decipher('hetelorlhe', 'acb', fillpattern=(2, 1))
+ >>> amsco_decipher('hetelorlhe', 'acb', fillpattern=(2, 1))
'hellothere'
- >>> amsco_transposition_decipher('etecstthhomoerereenisxip', 'encode')
+ >>> amsco_decipher('etecstthhomoerereenisxip', 'encode')
'hereissometexttoencipher'
- >>> amsco_transposition_decipher('hetcsoeisterereipexthomn', 'cipher', fillpattern=(1, 2))
+ >>> amsco_decipher('hetcsoeisterereipexthomn', 'cipher', fillpattern=(1, 2))
'hereissometexttoencipher'
- >>> amsco_transposition_decipher('hecsoisttererteipexhomen', 'cipher', fillpattern=(1, 2), fillstyle=AmscoFillStyle.continuous)
+ >>> amsco_decipher('hecsoisttererteipexhomen', 'cipher', fillpattern=(1, 2), fillstyle=AmscoFillStyle.continuous)
'hereissometexttoencipher'
- >>> amsco_transposition_decipher('heecisoosttrrtepeixhemen', 'cipher', fillpattern=(2, 1))
+ >>> amsco_decipher('heecisoosttrrtepeixhemen', 'cipher', fillpattern=(2, 1))
'hereissometexttoencipher'
- >>> amsco_transposition_decipher('hxtomephescieretoeisnter', 'cipher', fillpattern=(1, 3, 2))
+ >>> amsco_decipher('hxtomephescieretoeisnter', 'cipher', fillpattern=(1, 3, 2))
'hereissometexttoencipher'
- >>> amsco_transposition_decipher('hxomeiphscerettoisenteer', 'cipher', fillpattern=(1, 3, 2), fillstyle=AmscoFillStyle.continuous)
+ >>> amsco_decipher('hxomeiphscerettoisenteer', 'cipher', fillpattern=(1, 3, 2), fillstyle=AmscoFillStyle.continuous)
'hereissometexttoencipher'
"""
- grid = amsco_transposition_positions(message, keyword,
+ grid = amsco_positions(message, keyword,
fillpattern=fillpattern, fillstyle=fillstyle)
transposed_sections = [s for c in [l for l in zip(*grid)] for s in c]
plaintext_list = [''] * len(transposed_sections)
"""Breaks an AMSCO transposition cipher using a dictionary and
n-gram frequency analysis
- >>> amsco_break(amsco_transposition_encipher(sanitise( \
+ >>> amsco_break(amsco_encipher(sanitise( \
"It is a truth universally acknowledged, that a single man in \
possession of a good fortune, must be in want of a wife. However \
little known the feelings or views of such a man may be on his \
(6, 1, 0, 4, 5, 3, 2): ['keyword']}, \
patterns=[(1, 2)]) # doctest: +ELLIPSIS
(((2, 0, 5, 3, 1, 4, 6), (1, 2), <AmscoFillStyle.continuous: 1>), -709.4646722...)
- >>> amsco_break(amsco_transposition_encipher(sanitise( \
+ >>> amsco_break(amsco_encipher(sanitise( \
"It is a truth universally acknowledged, that a single man in \
possession of a good fortune, must be in want of a wife. However \
little known the feelings or views of such a man may be on his \
def amsco_break_worker(message, transposition,
pattern, fillstyle, fitness):
- plaintext = amsco_transposition_decipher(message, transposition,
+ plaintext = amsco_decipher(message, transposition,
fillpattern=pattern, fillstyle=fillstyle)
fit = fitness(sanitise(plaintext))
- logger.debug('AMSCO transposition break attempt using key {0} and pattern'
- '{1} ({2}) gives fit of {3} and decrypt starting: '
- '{4}'.format(
- transposition, pattern, fillstyle, fit,
- sanitise(plaintext)[:50]))
return (transposition, pattern, fillstyle), fit
if __name__ == "__main__":
projects / szyfrow.git / blobdiff