Nadim Kobeissi
@nadim.computer
Machine that turns video game music and coffee into cryptography education
Reposted by Nadim Kobeissi
A false narrative is being pushed about GrapheneOS claiming we're ending operations in France due to the actions of 2 newspapers. That's completely wrong. If both newspapers and the overall French media had taken our side instead of extreme bias against us, we'd still be leaving.
November 25, 2025 at 7:25 PM
A false narrative is being pushed about GrapheneOS claiming we're ending operations in France due to the actions of 2 newspapers. That's completely wrong. If both newspapers and the overall French media had taken our side instead of extreme bias against us, we'd still be leaving.
We’ve started covering zero knowledge proofs. Pretty satisfied with my slides, they did great in class today: appliedcryptography.page/slides/#2-8
Applied Cryptography — American University of Beirut
Learn modern cryptography principles and applications in this comprehensive course covering cryptographic theory, practical implementations, and real-world security systems at the American University ...
appliedcryptography.page
November 25, 2025 at 3:47 PM
We’ve started covering zero knowledge proofs. Pretty satisfied with my slides, they did great in class today: appliedcryptography.page/slides/#2-8
My first thought at waking up to the massive rainstorm in Beirut today was that at least there won’t be Israeli drones flying all around Beirut today
November 25, 2025 at 7:26 AM
My first thought at waking up to the massive rainstorm in Beirut today was that at least there won’t be Israeli drones flying all around Beirut today
Removed all of Cryspen's tech from my applied cryptography curriculum after students found it impossible to use hax, and Cryspen reacted to their attempts to write docs for it in a manner so garbage that it exemplifies the duplicity and elitism plaguing formal methods. cedarcrypt.org/nadim/applie...
Remove Cryspen tech from curriculum · 9fc025214b
Students found it impossible to use hax. Cryspen reacted by antagonizing
the students who tried to contribute hax documentation and very
unhelpfully in general.
The entire tech stack is also essentia...
cedarcrypt.org
November 25, 2025 at 2:56 AM
Removed all of Cryspen's tech from my applied cryptography curriculum after students found it impossible to use hax, and Cryspen reacted to their attempts to write docs for it in a manner so garbage that it exemplifies the duplicity and elitism plaguing formal methods. cedarcrypt.org/nadim/applie...
Reposted by Nadim Kobeissi
We got our security analysis of Letter Sealing v2 (latest E2EE protocol in the LINE messenger) accepted to Black Hat Europe. Full paper coming soon!
darkreading.com/application-security/line-messaging-bugs-asian-cyber-espionage
darkreading.com/application-security/line-messaging-bugs-asian-cyber-espionage
LINE Messaging Bugs Open Asian Users to Cyber Espionage
The encrypted messaging app uses a leaky custom protocol that allows message replays, impersonation attacks, and sensitive information exposure.
darkreading.com
November 24, 2025 at 4:38 PM
We got our security analysis of Letter Sealing v2 (latest E2EE protocol in the LINE messenger) accepted to Black Hat Europe. Full paper coming soon!
darkreading.com/application-security/line-messaging-bugs-asian-cyber-espionage
darkreading.com/application-security/line-messaging-bugs-asian-cyber-espionage
Schala's Theme
YouTube video by Trevor Alan Gomes - Topic
music.youtube.com
November 24, 2025 at 2:49 PM
This is absolutely ridiculous
November 24, 2025 at 1:48 PM
This is absolutely ridiculous
Why on Earth would anyone invest resources in DoSing ePrint? Who wakes up in the morning and thinks, "boy, I sure would like to spend my money on making it slightly harder for a bunch of computer scientists to share and read PDFs"
November 23, 2025 at 7:50 PM
Why on Earth would anyone invest resources in DoSing ePrint? Who wakes up in the morning and thinks, "boy, I sure would like to spend my money on making it slightly harder for a bunch of computer scientists to share and read PDFs"
Went today to a World Heritage Site: the place where the first netcafe I ever used to go to as a kid was. Used to log into mIRC name under the nickname smogon350 (Smogon was what Koffing said in the German Pokemon bootleg on my dad's TV), irc.dal.net, #leb and #harrypotter.
Now it's a gift shop.
Now it's a gift shop.
November 23, 2025 at 7:30 PM
Went today to a World Heritage Site: the place where the first netcafe I ever used to go to as a kid was. Used to log into mIRC name under the nickname smogon350 (Smogon was what Koffing said in the German Pokemon bootleg on my dad's TV), irc.dal.net, #leb and #harrypotter.
Now it's a gift shop.
Now it's a gift shop.
My thoughts on the IACR election issue (since many have asked privately):
- This was an honest accident, and Moti Yung deserves being cut some slack. Yes, it’s a silly mistake, but mistakes happen.
- The IACR board reacted excellently and scheduled timely follow up elections.
Continued in thread
- This was an honest accident, and Moti Yung deserves being cut some slack. Yes, it’s a silly mistake, but mistakes happen.
- The IACR board reacted excellently and scheduled timely follow up elections.
Continued in thread
November 23, 2025 at 12:53 PM
My thoughts on the IACR election issue (since many have asked privately):
- This was an honest accident, and Moti Yung deserves being cut some slack. Yes, it’s a silly mistake, but mistakes happen.
- The IACR board reacted excellently and scheduled timely follow up elections.
Continued in thread
- This was an honest accident, and Moti Yung deserves being cut some slack. Yes, it’s a silly mistake, but mistakes happen.
- The IACR board reacted excellently and scheduled timely follow up elections.
Continued in thread
My favorite electronic musician of all time, Daniel Lopatin (Oneohtrix Point Never) has a new album out: oneohtrixpointnever.bandcamp.com/album/tranqu...
Tranquilizer, by Oneohtrix Point Never
15 track album
oneohtrixpointnever.bandcamp.com
November 23, 2025 at 8:17 AM
My favorite electronic musician of all time, Daniel Lopatin (Oneohtrix Point Never) has a new album out: oneohtrixpointnever.bandcamp.com/album/tranqu...
I’m being discussed on Hacker News in *positive terms*? Has hell frozen over?
November 23, 2025 at 1:54 AM
I’m being discussed on Hacker News in *positive terms*? Has hell frozen over?
Reposted by Nadim Kobeissi
Today, on Lebanon’s Independence Day, we honor the spirit of a country that has endured crisis after crisis but refuses to surrender its identity or aspirations.
November 22, 2025 at 3:01 PM
Today, on Lebanon’s Independence Day, we honor the spirit of a country that has endured crisis after crisis but refuses to surrender its identity or aspirations.
Happy Lebanese Independence Day!
November 22, 2025 at 8:17 AM
Happy Lebanese Independence Day!
Reposted by Nadim Kobeissi
And now we are famous: www.nytimes.com/2025/11/21/w... - congratulations to all colleagues who made the NYT (both through quotes, by playing a role, or by being on this picture)
November 22, 2025 at 5:35 AM
And now we are famous: www.nytimes.com/2025/11/21/w... - congratulations to all colleagues who made the NYT (both through quotes, by playing a role, or by being on this picture)
I am the philosopher.
You sought to return the dream.
You sought to return the dream.
But the lighting of the mind has changed. At best you can only see another side.
You sought to return the dream.
You sought to return the dream.
But the lighting of the mind has changed. At best you can only see another side.
November 21, 2025 at 5:11 PM
I am the philosopher.
You sought to return the dream.
You sought to return the dream.
But the lighting of the mind has changed. At best you can only see another side.
You sought to return the dream.
You sought to return the dream.
But the lighting of the mind has changed. At best you can only see another side.
Once a year, my people and I look at a drawing of a cedar tree together and smile and sing happily at it
November 21, 2025 at 3:42 PM
Once a year, my people and I look at a drawing of a cedar tree together and smile and sing happily at it
Just realized that by the time this semester is over, I'll have corrected, in a single semester, 350 assignments, 100 exams, 20 projects, 25 posters and 15 presentations by hand, alone
November 21, 2025 at 2:56 PM
Just realized that by the time this semester is over, I'll have corrected, in a single semester, 350 assignments, 100 exams, 20 projects, 25 posters and 15 presentations by hand, alone
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
November 21, 2025 at 1:55 PM
Cryptographers in Lebanon vimeo.com/1139302888
Reposted by Nadim Kobeissi
This December, the Faculty of Engineering at #USyd is delighted to welcome Dr Moti Yung, who will speak at the Basser seminar series in our School. He will tell us about "Malicious Cryptography: beyond adhering to specifications in secure systems"
🕒 Tuesday, Dec 2
3:30—4:30pm
🕒 Tuesday, Dec 2
3:30—4:30pm
November 19, 2025 at 9:26 PM
This December, the Faculty of Engineering at #USyd is delighted to welcome Dr Moti Yung, who will speak at the Basser seminar series in our School. He will tell us about "Malicious Cryptography: beyond adhering to specifications in secure systems"
🕒 Tuesday, Dec 2
3:30—4:30pm
🕒 Tuesday, Dec 2
3:30—4:30pm
I regret to announce that my proposal to rename the Department of Computer Science into the Department of Really Strong Calculators has failed to garner any meaningful support
November 20, 2025 at 7:50 PM
I regret to announce that my proposal to rename the Department of Computer Science into the Department of Really Strong Calculators has failed to garner any meaningful support
Reposted by Nadim Kobeissi
My business model? Ensuring that my technology can never be easily reproducibly rebuilt by others and subtly undermining any efforts to produce easy, complete, accessible and up to date documentation so that you’re forced to hire me as a consultant just to be able to use it
November 20, 2025 at 8:44 AM
My business model? Ensuring that my technology can never be easily reproducibly rebuilt by others and subtly undermining any efforts to produce easy, complete, accessible and up to date documentation so that you’re forced to hire me as a consultant just to be able to use it