2.1.10

Use an affine cipher to encrypt the quotation of your choice.

Your affine cipher must have a multiplier and a shift.  Remember what we talked about in class – use a “good” multiplier.  A multiplier of 6, for example, won’t work.  Ask a classmate if you don’t remember what makes a multiplier good.  For class on Monday, bring a printout of your CIPHERTEXT without the rest of the spreadsheet.  The page should have your name on it and the multiplier and shift you used to encrypt it.

During class, you will trade and decrypt each others’ quotes using the inverse of the shift, then the inverse of the multiplier.