GitHub - panangam/csci181_project_2_scripts: Helper scripts (in Python) for project 2 from Applied Cryptography class.

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Helper scripts (in Python) for project 2 from Applied Cryptography class.

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Name		Name	Last commit message	Last commit date
Latest commit History 16 Commits
bigram_to_pair		bigram_to_pair
corpus		corpus
data		data
.gitignore		.gitignore
5000words.txt		5000words.txt
bruteforce.py		bruteforce.py
cribdragging.py		cribdragging.py
ct1.txt		ct1.txt
ct1_proj.py		ct1_proj.py
ct3_proj.py		ct3_proj.py
ct4_proj.py		ct4_proj.py
ct_io.py		ct_io.py
english_trigrams.txt		english_trigrams.txt
google-10000-english-no-swears.txt		google-10000-english-no-swears.txt
ngram_corpus.py		ngram_corpus.py
ngram_util.py		ngram_util.py
pairs.txt		pairs.txt
readme.txt		readme.txt
res1.txt		res1.txt
sources of horses articles.txt		sources of horses articles.txt
t_starting.txt		t_starting.txt
test1.py		test1.py
util.py		util.py
viterbi.py		viterbi.py

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I have eight total plaintexts. Each contains only the letters a - z, periods
and spaces between words. I have encoded these as a - z (00000 - 11001), 
period (11010) and space (11011). There are no other symbols.

I paired up the eight plaintexts into four pairs. I XORed those pairs together.

Those four XORs are contained in the file c1.txt.

There are hints in the texts.

If you want hints on the themes of the texts, then you can request them. Peter Hilton,
who had to do this during World War II at Bletchley Park (the plaintexts were in German) 
told me that this project is not fair without the themes. He said at Bletchley Park they
knew the theme of a message from things like the source of a transmission and the time of
 day it was sent.