## Cryptography- The "Caesar" code: shift
(mod 26). Just 26 keys, one for each letter of the alphabet.
- The permutation code. There are 26!, or about 400 million billion billion keys ...
- Childs, Lindsay N.: A Concrete Introduction to Higher Algebra,
2nd edition (Springer, 1995).
- Singh, Simon: The Code Book (Anchor Books, 1999).
- Stinson, Douglas R.: Cryptography, Theory and Practice (CRC 1995).
Home | Seminars | Links | G | BB | Math Dept | AMS | MAA | arXiv | Math Sci |