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:
M. R. Albrecht, S. Park, M. A. Specter, D. Stebila. In CRYPTO 2026.
P. Longa, J. W. Bos, S. Ehlen, D. Stebila. Internet-Draft, June 2026.
L. Glabush, K. Hövelmanns, D. Stebila. In IACR Communications in Cryptology, 2026.
D. Connolly, M. Ounsworth, S. Schmieg, D. Stebila. 2026.
F. Günther, D. Stebila, S. Veitch. Internet-Draft, January 2026.
L. Millerjord, D. Stebila, C. Steckel. In IACR Communications in Cryptology, 2026.
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:
Blog
I have a blog. I have not been very good at updating it lately, but here are my most recent posts:
- 2024-02-21: Security analysis of Apple's iMessage PQ3 protocol
- 2024-02-06: Launch of the Linux Foundation's Post-Quantum Cryptography Alliance
- 2023-10-22: New York Times article on post-quantum cryptography
- 2020-04-20: Joint Statement on Contact Tracing
- 2019-01-30: NIST Post-Quantum Crypto Standardization project round 2