Day	Topics	Read BEFORE class	HW
Monday	Polyalphabetic substitutions	2.5	2.5 # 1 (use A=1), 2 (shift keyword back by 1, e.g., BERTRAND-> ADQSQZMC), 6
Tuesday	Probability and Expectation	2.6	2.6 # 1, 2, 8, 10, 15
Wednesday	Friedman and Kasiski Tests	WE WILL MOVE THIS TO AFTER MIDTERM!	2.7 # 1, 2, 3, 4, 8
Thursday	Catch-up
Friday	Midterm!