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Cryptanalysis Challenge

I have given a series of talks for the Lancaster University Computing Society on the history of cryptography and cryptanalysis, covering some of the history of the topic. Those looking for the talk slides can find them here and here.

As part of the first talk, I issued a pair of challenges. Two files are presented. Both files are excerpts from (public-domain) books, encrypted using basic techniques from the talks. The challenge in both cases is to break the cipher, discover what the book is, and email me the title of the book. Those who break both ciphers are entitled to a free drink at my expense, and to laud themselves over those who failed.