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Cryptography Teaching Resources & Materials

Copyright: Felix releases all original material on these pages into the public domain. For copyrights on constituent parts (e.g. wikiquote), see any licence notices on the linked download pages or within those files.

Corpus of English quotations from the English WikiQuote, monocase with spaces and punctuation removed

Creation routine (i.e. how to make an updated version later)
The corpus file (41 MB, xz compressed)

Dictionary of isomorphic English words

This is a table of words which could be substitution ciphers of each other, e.g. it contains lines like:

ABCDEFGGF afternoon,cigarette,gabrielle,marquette,pirouette

english_isomorphic_words.txt (543 KB)