I spent last week in New Orleans for the Joint Mathematics Meetings 2011. I’d made a rather last minute booking after noticing a couple of sessions could be useful, and hadn’t quite grasped the scale of the event. I’d normally think of 200 mathematicians as a large gathering, but the JMM had over six thousand [...]
Geometry Club Talk: Why Cryptography Doesn’t Guarantee Security
Tomorrow, in what seems to be becoming an annual tradition, I’ll be giving a talk on cryptography at the Geometry Club. Since it’ll be a talk-and-chalk style seminar, I don’t have any slides to make available, but many of the topics I’ll be discussing have appeared earlier on this blog or everything2. In particular, I’m [...]
Colloquium Talk
Slides from a colloquium I gave on public key cryptography.
Distributed Computing
Mathematical study is often thought of as ‘purer’ than scientific research- instead of labs full of chemicals, fruit flies or lasers, our work could in theory proceed with nothing more than a chalkboard; rather than believing theories through weight of evidence and an absence of counterexamples, we prove theorems as undeniable consequences of our base [...]
Geometry Club Talk: Computational aspects of ECDLP
Notes from my geometry club talk given April 18th, 2008.
Understanding Public Key Cryptography with Paint
An introduction to public key encryption and Diffie-Hellman key exchange by mixing paint.
The Secrecy Problem
Link to an E2 writeup on reducing the secrecy problem to Post’s Correspondence Problem.
Geometry Club Talk: Hyperelliptic curves
Slides from my talk on the geometry of hyperelliptic curves in connection with cryptography.
Baby Steps, Giant Steps, and element orders
Establishing the order of an element by BSGS.
Type Flaw Attacks
Link to E2 writeup on type flaw attacks.
