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About me

I'm an Assistant Professor in cryptography at McMaster University in Hamilton, Ontario, Canada. My research focuses on improving the security of Internet cryptography protocols such as SSL/TLS and SSH.


My research interests include:

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

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

P. Gauravaram, S. Hirose, D. Stebila. In ATIS 2017.

N. Bindel, U. Herath, M. McKague, D. Stebila. In PQCrypto 2017.

K. Cohn-Gordon, C. Cremers, B. Dowling, L. Garratt, D. Stebila. In IEEE EuroS&P 2017.


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:


I have a blog. I have not been very good at updating it lately, but here are my most recent posts:

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