Prague·13—15 October 2026
A non-profit organisation stewarding the cryptographic library that most of the modern internet links against.
The mission is direct: make cryptographic privacy a fundamental human right.
That means keeping the library free, trustworthy, FIPS-validated, and quietly maintained by people paid to do the work properly — for as long as the world depends on it.
This conference is the one place each year where the people doing that work — and the people who depend on it — sit in the same room, and decide together what stewardship looks like for the next ten years.
In 1881 a Czech engineer struck an arc between two carbon rods and refused to let it sputter out. The world stopped calling it a novelty and started calling it electricity.
Cryptography stands in that same gap now. It has crossed the line from specialist concern to civic infrastructure — payments, identity, transport, energy, the message you are reading. The work is no longer adjacent to the modern world.
It is the part that does not glow until it fails.
Edition № 02 is for the people who hold those rods steady — and who will choose, this October, what comes next when the rods themselves change.
The theme is the moment cryptography becomes infrastructure.
The mission is keeping that infrastructure free, trustworthy, and maintained.
The conference is where the people who do that work meet.
A tutorials day, the three-day programme, and a Monday evening with the maintainers — sold separately, designed as one trip.
A working day with the people who build the cryptography you ship.
Live-coding with the OpenSSL engineering team against the canonical codebase. The HSM bench. PKCS#11. Bill Buchanan on applied cryptography. The conference token, programmed by you, in your pocket on the way home.
Three tracks, three nights, the people you came to Prague to meet.
Keynotes, deep-dives, and the closing panel across three tracks at the Diplomat. Coffee and lunch on the garden terrace. Tuesday night on the Vltava, and more evenings to come. The hallway track that makes the trip worth it.
A small, off-the-record table where the conversation goes deeper than the talk could.
Three intimate Monday-night tables across the city — Tim Hudson, David Hook, and Matt Caswell at the head of each. Five seats per host, advance sign-up, off the record. Where the gap closes between the people writing the code and the people running it.
The two co-authors of SSLeay — and one of the maintainers carrying the keynote on behalf of the team today. Three signatures from the original AUTHORS file, in one room, for the first time.
The arc was lit in 1995. We've kept it alight ever since.
Eric Young
Co-author · SSLeay · Brisbane
We wrote it because there was nothing to use. Thirty-one years on, the thing we wrote is the thing the internet uses.
Tim Hudson
Co-author · SSLeay · President, OpenSSL Corporation
A maintainer's job is not to write code. A maintainer's job is to make sure the code outlives the maintainer.
Matt Caswell
President · OpenSSL Foundation
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Read full profileFour rooms across one city — the auditorium, the salon, the deck, the pivnice. The conference is the excuse; this is the week.
Plate I · the auditorium
Home base for three days. Four tracks under one roof — plenary in the main hall, deep-dives in the side rooms, garden terrace for coffee.
hoteldiplomat.cz
Plate II · the deck
Two hours on the river. Prague Castle on one bank, the Old Town on the other. The whole conference on one boat — as the city lights come up.
prague-cruise.comA short reel from the inaugural room, and a handful of frames.
The same city, the same community — back in Prague for Edition № 02.
Patronage of Edition № 02 underwrites the bursaries, the host dinners, and the work of the maintainers we are gathered to honour. With thanks.
All patron tiers →Prague — head of the kingdom, and the city Křižík taught to glow.
That is the room. Yours, if you take the seat.
(Academics & Individuals)
For students, researchers, and independent contributors. In a personal capacity, not on a company badge.
Early Bird · 23 Mar — 31 May
Standard €410 · Final €510
(Small Businesses)
For companies of up to one hundred. The teams shipping the cryptography most of the web runs on.
Early Bird · 23 Mar — 31 May
Standard €640 · Final €850
(Large Businesses & Distributions)
For estates of one hundred and up. The integrators, distributions, and platforms the work runs underneath.
Early Bird · 23 Mar — 31 May
Standard €770 · Final €1,050