On BlueSky: https://bsky.app/profile/bsky.defeo.lu
| 🏠 | Zürich |
| www | https://defeo.lu/ |
| GH | https://github.com/defeo/ |
| PGP 🔑 | https://defeo.lu/pgp-key |
| 🏠 | Zürich |
| www | https://defeo.lu/ |
| GH | https://github.com/defeo/ |
| PGP 🔑 | https://defeo.lu/pgp-key |
We still have a few spots left at MaGIC!
Registration closes this week... Hurry up if you want to be on top of all the latest news on Cryptographic Group Actions!

A workshop dedicated to the study of cryptographic group actions, a rapidly evolving area at the intersection of algebraic geometry, number theory, and post-quantum cryptography. The workshop will bring together researchers working in isogeny-based and code-based cryptography, spanning theoretical foundations and practical applications of group-action techniques.
RE: https://infosec.exchange/@gendx/116172036251363114
- Prove or disprove P = NP 😂
- Find a new Mersenne prime 🤣
RE: https://ioc.exchange/@luca_defeo/116080649259220506
Early registration deadline is this week! Secure your spot at MaGIC 🪄
Announcement by Jintai Ding about solving the Kyber 256 challenge, the highest existing challenge.

Kyber 256 Challenge With my student Ziyu, we solved the Kyber 256 challenge, the highest existing challenge. Challenge: Kyber-256-k1 Secret Key: [0 0 -2 0 1 0 1 -1 0 1 0 -1 2 2 1 1 -1 1 0 0 2 0 0 1 0 -2 -1 -2 1 -2 1 -1 -2 2 0 0 -1 1 -2 2 -2 -1 1 -1 -1 1 1 1 0 1 -2 1 0 0 -1 3 1 2 0 -1 -2 -2 0 0 2 0 1 0 2 1 1 -1 0 1 -1 -1 1 1 -1 -1 -1 1 2 -1 0 1 0 2 1 0 -2 1 0 0 1 0 1 1 1 0 -1 -2 0 2 2 -2 -1 1 -1 -2 -1 1 -1 -1 -1 0 1 -1 -1 0 -2 0 0 -3 2 3 0 -1 -3 0 -1 -2 0 0 -1 1 0 0 0 1 1 0 -2 0 -1 0 -1 1 -1 -1 -1 0 0 1 0 -1 0 2 0 -1 2 0 -2 2 -1 -2 -2 -1 -3 0 1 -1 -1 -2 1 0 -2 -3 0 -2 0 3 -2 0 0 1 -1 2 0 1 -1 0 -1 0 2 -3 0 -1 -1 0 0 1 0 0 0 -3 1 0 1 0 0 1 0 -2 -1 -1 0 0 2 0 -1 -2 1 0 0 -2 2 0 1 0 0 -1 -3 0 0 -1 -3 1 0 0 -1 -1 0 -1 2 1 0 -1 1 2 -1 0 2 -1 1 2] Decrypted / Sined Message: “You know, Watson, I don't mind confessing to you that I have always had an idea that I would have made a highly efficient criminal.” ― Arthur Conan Doyle, The Return of Sherlock Holmes Authors: Jintai Ding, Ziyu Zhao Algorithm and Implementation: Primal attack on Kannan embedding, Preprocessing (up to β=145) with BGJ-AMX and BGJ-GPU, Final sieve with BGJ-GPU, Solving Rank 156 (expected 163). Hardware and CPU-Time: The computation was distributed across a total of 16 RTX 4090 GPUs in a shared system. We estimate the equivalent of 15 RTX 4090 GPU-months for the entire computation. Comments: There was also a failed attempt after BKZ (β=142) with maximum sieving rank 170 (expected 168), which took roughly 8 RTX 4090 months.
Publication d'une lettre ouverte contre les lois imposant la vérification d'âge sur les sites, notamment signée par des experts en cybersécurité.
This made me chuckle, but also made me angry, because it's SO TRUE.
The Norwegian Consumer Council, a government funded organization advocating for consumer's rights, released a report on the trend of "enshittification", and a funny four-minute video: A Day in the Life of an Ensh*ttificator

Digital products and services keep getting worse. In the new report Breaking Free: Pathways to a fair technological future, the Norwegian Consumer Council ha...
Motorola announces partnership with Graphene OS to bring us secure phones!
https://motorolanews.com/motorola-three-new-b2b-solutions-at-mwc-2026/
So the mysterious manufacturer GOS was working with was Motorola, not OnePlus as early speculations suggested. This is good news, Motorola is owned by Lenovo and makes cool phones!
Reminder that Graphene OS is still based on AOSP and therefore, IMHO, eventually doomed to succumb to Google's shenanigans. However, for now and for the foreseeable future, that's the best we can have.
#grapheneos #motorola #android #aosp #linux #pixel #google #enshittification #security #privacy