## Forster: Cryptography

Course (4 hours weekly + 2 hours Problem sessions) by
O. Forster

Summer Semester 2005,
Department of Mathematics, LMU München
**Time and Room:** Tue, Thu 14-16, E5

**Problem sessions:** Tuesday 16-18, E 47 (**changed!**)

**Crypto contest**

** Contents:**
After a survey of classical cipher systems we will study modern block cipher crypto systems (DES, AES) and public key cryptography.
Public key cryptography plays an important role in electronic commerce, electronic banking and other kinds of modern data communication.
It deals not only with secret coding of messages but also with digital
signatures and authentification. Public key cryptography uses
interesting mathematical methods from number theory and algebraic
geometry (e.g. elliptic curves over finite fields).

** Prerequisites:**
Basic notions of algebra, number theory and analysis

** For:**
Studierende der Mathematik und/oder Informatik nach dem Vordiplom,

Students of the International Master Program in Mathematics,

und andere Interessenten

** Literature **

- J. Buchmann: Introduction to Cryptography (also a German edition
is available). Springer Verlag
- O. Forster:
Algorithmische Zahlentheorie, Vieweg-Verlag
- Menezes, van Oorschot, Vanstone: Handbook of Applied Cryptography.
CRC Press
- D. R. Stinson: Cryptography: Theory and Practice. CRC Press

Otto Forster (),
2004-12-21