Ebook Computer security and cryptography: Part 1

Ebook Computer security and cryptography part 1 includes contents: Chapter 1 aperitifs, chapter 2 columnar transposition, chapter 3 monoalphabetic substitution, chapter 4 polyalphabetic substitution, chapter 5 statistical tests, chapter 6 the emergence of cipher machines, chapter 7 the Japanese cipher machines, chapter 8 stream ciphers.