Not currently teaching this course.
Spring of 2013
Code Book Questions:
Click here for a useful spreadsheet. It has more of a visual to see how encoding and decoding works.
Web Sites Useful in cryptology
Letter, digraphs, trigraphs counter: (By Prof. Tom LInton, Central College, Pella): Text Analyzer
More by Prof. Linton: Kasiski analyzer and splitter
Index of coincidence calculator from swwvgs.us: IC calulator
Integer factoring program into primes by Numberempire Prime Factoring
More tools from rumkin: Cipher Tools
A web sit for analysis: (used from the all practical book) http://www.d.umn.edu/~jgallian/project.petr/cryptogram.html