Talks I've given

Efficient verifiable random function and its applications: 
This is the talk about VRF and distributed block ciphers, which I gave at IBM research.
A verifiable random function with short proofs and keys: 
The slides for the talk at PKC 2005 in Les Diablerets, Switzerland.
Towards a theory of data entanglement: 
These are the slides for the talk at ESORICS 2004 in Sophia Antipolis, France.
Spreading rumors quietly: 
A talk on an older version of the "Spreading alerts quietly" paper, which I gave
at the NYU Crypto Reading Group.
Inoculation strategies for victims of viruses: 
Extended version of the talk given at SODA 2005 in Vancouver B.C., Canada
Short signatures without random oracles: 
A talk on the paper by Boneh-Boyen at the NYU Crypto Reading Group
SIA: Secure information aggregation in sensor networks: 
A talk on the paper by Przydatek-Song-Perrig at the Yale Theory Clique
Number Theory Lectures. Lecture 1:   Lecture 2:
Series of lectures I gave in Prof. Fischer's cryptography class. They cover groups,
finite fields, Lagrange's Theorem, Euclid's algorithms, etc.