The making and breaking of secret ciphers and codes. Classical ciphers: shift, affine, Vigenère, substitution, Hill, one-time pads, and Enigma. A brief introduction to number theory. Modern methods: RSA algorithm, DES, AES: Rijndael, discrete logarithms and elliptic curves.

Prerequisites:

• [MATH-225] Foundations of Higher Mathematics -- with a grade of at least C.

Teaching history:

• 2020 Spring

  -- D. Morton.
• 2017 Fall

  -- D. Morton.
• 2015 Spring

  -- D. Morton.