Nadim Kobeissi
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nadim.computer
Nadim Kobeissi
@nadim.computer
720 followers 330 following 1.1K posts
Mass produced during the Machine Era but redesigned for the Psychic Era
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nadim.computer
Nadim Kobeissi @nadim.computer · Nov 21
Cryptographers in Lebanon vimeo.com/1139302888
Cryptographers in Lebanon
This is "Cryptographers in Lebanon" by Nadim Kobeissi on Vimeo, the home for high quality videos and the people who love them.
vimeo.com
Reposted by Nadim Kobeissi
malb.bsky.social
Social Foundations of Cryptography: Autumn School
London, UK | 15 to 17 September 2026
social-foundations-of-cryptography.gitlab.io/school
We're hosting an Autumn School in London, UK, from 15 to 17 September 2026, to bring together ethnographers and cryptographers to discuss ways in which the two fields can be meaningfully brought into conversation. This is also the premise of our Social Foundations of Cryptography project: to ground cryptography in ethnography. Here, we rely on ethnographic methods, rather than our intuition, to surface security notions that we then formalise and sometimes realise using cryptography. Our intention is to 'flip' the typical relationship between the computer and social sciences, where the latter has traditionally ended up in a service role to the former. Rather, we want to put cryptography at the mercy of ethnography. But how do we do this? How do we as cryptographers interact with and make sense of ethnographic field data? How can we refine, improve or extend this interaction? What obstacles do we face when we make cryptography rely on ethnographic data which is inherently 'messy'? How do we handle that cryptographic notions tend to require some form of generalisation but ethnographic findings can only be particular? How do ethnographers retain the richness of ethnographic field data in conversations with cryptographic work? Indeed, our project has already highlighted some limitations of our approach. It has brought to the fore concrete challenges in 'letting the ethnographic data speak' while still making it speak to cryptography. The Autumn School is an opportunity to explore these questions jointly across ethnography and cryptography, through a series of talks, group discussions and activities. We say a bit more about the programme and registration for the Autumn School here.
January 13, 2026 at 4:30 PM
Reposted by Nadim Kobeissi
alistairkitchen.bsky.social
“We regret that our transparently racist act created division. And also that it predictably destroyed the thing it is our one job to protect.”
January 13, 2026 at 4:01 AM
Reposted by Nadim Kobeissi
eprint.ing.bot
Fully Secure DKG Protocols for Discrete Logarithm Revisited (Karim Baghery, Hossein Moghaddas) ia.cr/2026/042
Abstract. In EUROCRYPT 1999, Gennaro, Jarecki, Krawczyk, and Rabin (GJKR) showed that in the well-known Pedersen robust Distributed Key Generation (DKG) protocol for the Discrete Logarithm (DL), an adversary can bias the distribution of the resulting public key. To address this issue, they proposed a fully secure, statistically unbiased variant of the Pedersen DKG protocol. The GJKR protocol achieves robustness and guarantees that the final public key remains uniformly random, even in the presence of computationally unbounded corrupted parties, though at the cost of O(n²) computational complexity, where n denotes the number of parties. In this paper, we revisit fully secure robust DKG protocols for the DL setting and propose three more efficient alternatives, each achieving O(n) computational complexity while offering different trade-offs in security, efficiency, and round complexity. Our first protocol, like the GJKR scheme, guarantees that the distribution of the final public key remains uniformly random, even against computationally unbounded adversaries. The second protocol is concretely more efficient and ensures that the public key distribution is computationally indistinguishable from uniform. In our third construction, we focus on minimizing the number of rounds in the second protocol and present a 3-round variant of it. Our third scheme can be viewed as a fully secure and round-reduced variant of the biased construction by Atapoor et al. (ASIACRYPT 2023). In comparison with the most recent low-round fully secure DKG protocols by Katz (CRYPTO 2024), Cascudo-David (EUROCRYPT 2024), Kate et al. (CCS 2024), and Boneh et al. (EUROCRYPT 2025)–all of which achieve three rounds via two online rounds and one preprocessing round (or vice versa)–our three-round DKG protocol requires only O(n) exponentiations, as opposed to at least O(n²). Image showing part 2 of abstract.
January 11, 2026 at 8:47 PM
Reposted by Nadim Kobeissi
lobsters-feed.bsky.social
Asahi Linux - Porting Linux to Apple Silicon https://lobste.rs/s/jbrnz8 ##video ##linux
Asahi Linux - Porting Linux to Apple Silicon
In this talk, you will learn how Apple Silicon hardware differs from regular laptops or desktops. We'll cover how we reverse engineered t...
media.ccc.de
January 11, 2026 at 3:10 PM
nadim.computer
Here is a take on AI that I fully agree with: antirez.com/news/158
Don't fall into the anti-AI hype - <antirez>
antirez.com
January 11, 2026 at 1:24 PM
nadim.computer
Many, many stability and reliability fixes pushed to Magicall today, including improvements for multi-region calls.

Magicall is my new end-to-end encrypted videoconferencing service in the browser. Give it a shot! magicall.online
Magicall • Video calls. No friction.
Free encrypted video calls. No downloads, no accounts required for guests. Simple, secure video meetings.
magicall.online
January 11, 2026 at 11:11 AM
nadim.computer
youtu.be/MPTiNfDNSzQ
Quartz Quadrant (Re-Imagined) [YM2151 + SegaPCM] - Sonic CD (JP)
YouTube video by MegaBaz
youtu.be
January 11, 2026 at 8:30 AM
Reposted by Nadim Kobeissi
dotmeow.org
At just a stone's throw from 72K, we're almost 90% funded and we're only a third of the way through!
.meow is actually going to happen!!

(If you wanna help make it happen, might a humble cat recommend clicking the link below and/or sharing it?)
dotmeow.org .meow @dotmeow.org · 25d
Hey! Hi! Hello!

Our Kickstarter is... (drumroll, if you please) LIVE!

You can find it riiiiight

here: kickstarter.dotmeow.org

But what IS .meow?

Well!

Let us explain... with video!
January 11, 2026 at 6:29 AM
nadim.computer
Wow
THE SANCTUARY
I decided to revisit this track because I felt the original could be improved. I thought about replacing the old file, but ultimately chose to upload this version separately. I’m also trying out a ne
soundcloud.com
January 10, 2026 at 2:59 PM
Reposted by Nadim Kobeissi
rwc.iacr.org
Registration for Real World Crypto 2026 is now open! rwc.iacr.org/2026/registr...
RWC 2026 registration
Real World Crypto Symposium
rwc.iacr.org
January 9, 2026 at 1:32 PM
Reposted by Nadim Kobeissi
lobsters-feed.bsky.social
Magicall: end-to-end encrypted videoconferencing in the browser, now in alpha https://lobste.rs/s/omlcbk ##javascript ##release ##testing ##cryptography
Magicall • Video calls. No friction.
Free encrypted video calls. No downloads, no accounts required for guests. Simple, secure video meetings.
magicall.online
January 9, 2026 at 9:40 AM
Reposted by Nadim Kobeissi
rwc.iacr.org
The Real World Crypto 2026 program is now online: rwc.iacr.org/2026/program...

We look forward to seeing many of you!
RWC 2026 program
Real World Crypto Symposium
rwc.iacr.org
January 8, 2026 at 10:16 PM
nadim.computer
What 10x productivity looks like
January 8, 2026 at 11:37 AM
nadim.computer
I just spent two days on a single bug in Magicall: when using end-to-end encryption with WebRTC Insertable Streams, the first guest to join could see the host perfectly, but if that guest refreshed the page and rejoined, the host's video would freeze or go black.
January 7, 2026 at 10:40 PM
Reposted by Nadim Kobeissi
tanatb.housefuckinggame.com
accidentally introduced a bug to the game where all the text got replaced with "you"
January 7, 2026 at 12:09 PM
nadim.computer
Hell is debugging race conditions in multiparty audio/video software
January 6, 2026 at 7:56 PM
Reposted by Nadim Kobeissi
arstechnica.com
Codenamed Panther Lake and targeted at high-end ultraportable PCs, the Core Ultra 3 chips will be the first to use Intel’s 18A manufacturing process in an effort to catch up with TSMC.
Intel launches Core Ultra Series 3 CPUs, made using its long-awaited 18A process
New chips launch "this month," targeting high-end ultraportable PCs.
arstechnica.com
January 6, 2026 at 7:47 PM
nadim.computer
January 6, 2026 at 8:36 AM
nadim.computer
Pleased to announce that I'm launching Magicall, end-to-end encrypted videoconferencing in the browser.

Try it out: magicall.online
Magicall • Video calls. No friction.
Free encrypted video calls. No downloads, no accounts required for guests. Simple, secure video meetings.
magicall.online
January 5, 2026 at 2:44 PM
Reposted by Nadim Kobeissi
malb.bsky.social
Come work with us!

Lecturer (≅ Assistant Professor/Juniorprofessor/Maître de conférences) in Cryptography at King’s College London

martinralbrecht.wordpress.com/2026/01/05/l...
Lecturer (≅ Assistant Professor/Juniorprofessor/Maître de conférences) in Cryptography at King’s College London 2026
We are looking to recruit a lecturer in cryptography at King’s College London to work with us within the cybersecurity group: I think it’s fair to say we got strong expertise in lattice-based and p…
martinralbrecht.wordpress.com
January 5, 2026 at 12:04 PM
nadim.computer
Moka pots are such a great way to make coffee!
January 5, 2026 at 7:35 AM
nadim.computer
youtu.be/Y74frd_e98U
Deltarune: Rude Buster (Jazz Fusion Arrangement) | Crash Course VGM Fusion Band​
YouTube video by Ruscel Torres
youtu.be
January 5, 2026 at 6:37 AM
nadim.computer
January 4, 2026 at 5:10 PM
nadim.computer
Best work music ever invented by humans? sidmeierscivilization.bandcamp.com/track/ancien...
Ancient Egypt (Antiquity Age), by Geoff Knorr
from the album Sid Meier's Civilization VII (Original Game Soundtrack)
sidmeierscivilization.bandcamp.com
January 4, 2026 at 4:36 PM
nadim.computer
Gave @civilization.2k.com a try this weekend and very confused by the mixed reviews. Civilization VII is clearly superior to VI in every way, lots of reviewers seem to be either short-sighted or rigid, unwilling to accept any changes to a formula they’ve gotten used to.
January 4, 2026 at 11:02 AM