Douglas Stebila

About me

I'm an Associate Professor of cryptography in the Department of Combinatorics & Optimization at the University of Waterloo in Waterloo, Ontario, Canada. My research focuses on improving the security of Internet cryptography protocols such as SSL/TLS and SSH, and developing practical quantum-resistant cryptosystems.

Research

My research interests include:

Applied cryptography: key exchange protocols; post-quantum cryptography; digital signatures; public key encryption; client puzzles / proofs of work; elliptic curve cryptography; quantum cryptography
Internet security: network security protocols (SSL/TLS, SSH, Tor, …); public key infrastructure (PKI); authentication

My full list of publications and presentations are available online. My most recent papers are:

Post-quantum TLS without handshake signatures

P. Schwabe, D. Stebila, T. Wiggers. 2020.

Hybrid key exchange in TLS 1.3

D. Stebila, S. Fluhrer, S. Gueron. Internet-Draft, April 2020.

Benchmarking post-quantum cryptography in TLS

C. Paquin, D. Stebila, G. Tamvada. In PQCrypto 2020.

A reduction-based proof for authentication and session key security in 3-party Kerberos

J. Schwenk, D. Stebila. In International Journal of Applied Cryptography, 2020.

Pictures

I'm fortunate to be able to travel a lot. I take lots of pictures on my trips. The best of my photos are posted in my galleries. My most recent galleres are: