Idé til projekt i kryptologi på uni?

Hej alle

Jeg har brug for et emne til et eksamensprojekt på et kryptologikursus jeg følger. Jeg læser egentlig matematik så jeg bliver nødt til at finde et teoretisk projekt og ikke et implementeringsprojekt :) Jeg har listet nogle mulige projekter, men kunne godt bruge et par andre idéer hvis I har nogen :)

Nuværende idéer:

1: Protecting DES against Key Search

Study Kilian and Rogaways proposal on how to make any block cipher, such as DES, stronger against exhaustive key search. The proposal looks simple, but can nevertheless be proved to work.

2: Secure Signatures in Practice
Study the practical signature system proposed by Cramer and Shoup, which is provably secure against chosen message attacks, assuming RSA functions are hard to invert.

3: Unconditionally Secure Systems Based on Noisy Channels
Maurer and others have shown how to exchange keys with information theoretic security based on noisy communication channels. Study and present some of the ideas.

På forhånd tak