Introduce students to:
Simple codes, including binary and Unicode/ASCII.
How simple symmetric encryption/decryption works.
How any symmetric code can be broken.
Encryption schemes such as Cipher Wheels the Enigma Machine.
That any code can be broken with good information and a lot of time.
Anticipated learner outcomes
Students will be able to to describe:
Some of the history of encryption.
How encryption helps protect information.
The relationship between encryption and decryption.
How security is a constant game of cracking the code.
Beissinger, Janet, The Cryptoclub: Using Mathematics to Make and Break Secret Codes, A K Peters/CRC Press, 2006 ISBN-10: 156881223X
Optional Writing Activity
Can there ever be a code that can’t be cracked? Pick a side of this debate and make a case for your perspective.