Add 2025_tkey_meetup

Author: Eliot-Roxbergh

posts/2025_tkey_meetup.md

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+# Inbyggd frihets TKey-hackathon
+
+Saturday the 25th October,
+Inbyggd-Frihet will organize a TKey hackathon at Assured's office in Gothenburg.
+
+The Tillitis TKey is an open-source software, and open-source hardware, USB security token made in Sweden.
+It is capable of providing an extra layer of security for use cases such as cryptographic signing, (SSH, PAM, etc.) login, and random number generation.
+For more information about the TKey see below.
+
+The goal of the hackathon will be to collaborate on improving the TKey software and to work on finding, and implementing, more use cases for the TKey.
+This is not a competitive hackathon, instead our aim is to get started with, and to improve, the TKey together with others, have fun and share ideas.
+
+If you already know something that you want to implement, you can include it with your registration.
+At the start of the event, these ideas will be presented, and people may freely choose an idea that they find interesting, and collaborate on for the day.
+
+**Prerequisites:** \
+Bring a laptop if you wish to partake in the hackathon.
+
+**Schedule:** \
+12:00 Doors open \
+13:00 TALK: Introduction \
+13:10 TALK: Getting started with TKey and the emulator\
+13:30 TALK: Introduction round and presentation of hackathon ideas.\
+14:00 HACK: Join a group and start hacking\
+17:00-18:00: Food\
+20:00: Present your achievements\
+21:00: End of event
+
+
+## Further reading
+
+
+_The TKey is an open source security token created by the Mullvad spin-off Tillitis AB. Both its software and its hardware (schematics, PCB, and FPGA design) are open source._
+_The TKey was released in April of 2023 with a price tag of 880 SEK (incl. tax) and available from the Tillitis store._
+
+_The TKey is a small device drawing less than 100mA._
+_It provides a few basic functions (either in firmware or by the provided apps and libs) such as Ed25519 signing, key derivation, BLAKE2 hashing, and a good random number generator (TRNG)._
+_It also has a sensor for user confirmation._
+_With these features, the TKey can be used for various functionalities, such as authentication (signing, SSH login, passkey, etc.), serving as a root of trust (sign/encrypt), or as a source of entropy (TRNG/CSPRNG)._\
+_-> https://www.assured.se/posts/getting-started-tillitis-tkey-security-token#anyway-whats-a-tkey_
+
+
+- TKey: \
+https://www.tillitis.se/products/tkey/
+- TKey developer handbook: \
+https://dev.tillitis.se/intro/
+- Tillitis shop: \
+https://shop.tillitis.se/
+- For Linux, introduction to app development and use cases: \
+https://www.assured.se/posts/getting-started-tillitis-tkey-security-token
+- For Windows, introduction to use cases: \
+https://www.assured.se/posts/sign-git-commits-tillitis-tkey-security-token
+- Inbyggd Frihet Göteborg \
+ <https://inbyggd-frihet.org>