Day	Topics	Read BEFORE class	HW
Monday	Substitution ciphers	2.3	2.3 # 2, 4, 5
Tuesday	(Continued)		2.3 # 7, 9, 8b (that is, author a short paragraph without our common most typographic symbol!)
Wednesday	Transposition ciphers	2.4	2.4 # 3, 6, 7
Thursday	Enjoy the Holiday!
Friday	The Code Book discussion	2.2, Chapter 2 of The Code Book	Codeword Steganograph Challenge, see below

Codeword Steganograph Challenge:
First read this blog entry:
HERE
Then duplicating the process, but for the frequencies 5 then 3 (instead of 4 then 7), and with a 3x3 square (instead of 3x5) make a paragraph concealing the message:
JIM JONES PLANS MASS SUICIDE SEND ARMED HELP IMMEDIATELY
Follow the inband signal conventions (the first three) listed on the blog, and write as if you were a happy member of Jonestown writing a postcard home. (You needn't do much research: Jonestown was a religious community in Guyana, the details can be totally made up).