Thom Wiggers · Thom Wiggers

Thom Wiggers

Thom Wiggers is a cryptography researcher at PQShield. His PhD thesis was on the interactions of post-quantum cryptography with protocols, under the supervision of Peter Schwabe, at the Institute of Computing and Information Sciences, Radboud University in The Netherlands.

Ph.D. in Post-Quantum Cryptography

2018-09-01
2024-01-09

Radboud University Nijmegen

MSc in Computing Science

2015-09-01
2018-08-31

Radboud University Nijmegen

Cryptography Post-Quantum Cryptography Protocols Information Security

📚 My Research

Featured Publications

Post-Quantum TLS featured image

Post-Quantum TLS

Ph.D. thesis on post-quantum cryptography in TLS. I investigate current proposals for post-quantum TLS, but more importantly we propose a more efficient TLS handshake that makes …

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Thom Wiggers

1 min read

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Recent Publications

Recent & Upcoming Talks

Migrating protocols to PQ: the good, the bad, and the ugly featured image

Extended Key Update FATT Report featured image

Extended Key Update FATT Report

I presented a Formal Analysis Triage Team report on Extended Key Usage (EKU) in the TLS working group session.

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Thom Wiggers

2026-03-16 11:30 — 13:30 1 min read

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Fully PQ TLS in the WWW featured image

Fully PQ TLS in the WWW

Key exchange in TLS is now mostly PQ! But what about authentication? In this talk, I discussed some of the ongoing work to make the costs of PQ certificates acceptable so that …

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Thom Wiggers

2025-12-03 14:35 — 15:00 2 min read

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Bundled Authenticated Key Exchange: A Concrete Treatment of (Post-Quantum) Signal's Handshake Protocol featured image

Comprehensive Deniability Analysis of Signal Handshake Protocols: X3DH, PQXDH to Fully Post-Quantum with Deniable Ring Signatures featured image

Recent News

Using Emoji in (pdf)LaTex

I recently wanted to use Emoji in a paper, but I did not want to force my contributors into using LuaLaTeX or XeLaTeX (in which you can just use fancy fonts). So as a work around, …

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Thom Wiggers

2 min read

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Post-quantum TLS experiments featured image

Post-quantum TLS experiments

Recently, I have computed the sizes and measured the performance of post-quantum TLS (both PQ key exchange and post-quantum authentication). In these experiments, I have examined …

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Thom Wiggers

1 min read

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hxp 2022 (2023) CTF writeup featured image

hxp 2022 (2023) CTF writeup

After I found myself in a vacation rental with Bas and Joost, we thought it would be fun to have a go at a few of hxp’s 2022 2023 ctf challenges as team #RU (long story relating to …

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Thom Wiggers

7 min read

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LaTeX Tips and Tricks featured image

LaTeX Tips and Tricks

After a discussion on twitter I decided I should write down a few of the tips and tricks I’ve learnt over the years of writing papers and many other things in LaTeX.

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Thom Wiggers

8 min read

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Cloudflare Internship

If you’re curious about some of the things I’ve worked on while at Cloudflare, see this post on Cloudflare’s internal blog.

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Thom Wiggers

1 min read

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Making protocols post-quantum featured image

Making protocols post-quantum

Post-quantum key exchange and signature algorithms come with different trade-offs that we’re not used to. How do we handle that when updating protocols, and is this an opportunity …

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Thom Wiggers

1 min read

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Dissecting Proctorio featured image

Dissecting Proctorio

This article previously appeared in Thalia’s Thabloid, in the 2019–2020 issue number 5. It was written at the end of May and may not reflect current practice at Radboud University. …

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Thom Wiggers

10 min read

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Contact

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