News from #aarhuskrypto: we welcome postdocs LaKyah Tyner, Mahak Pancholi, Sebastian Hasler and Hamidreza Khoshakhlagh! users-cs.au.dk/orlandi/cryp...
Aarhus Crypto Group
users-cs.au.dk
Diego F. Aranha
@dfaranha.bsky.social
Associate Professor of Cryptographic Engineering at Aarhus University. https://dfaranha.github.io/
News from #aarhuskrypto: we welcome postdocs LaKyah Tyner, Mahak Pancholi, Sebastian Hasler and Hamidreza Khoshakhlagh! users-cs.au.dk/orlandi/cryp...
Aarhus Crypto Group
users-cs.au.dk
Não sei como o governo consegue ter a cara de pau de discutir soberania e AI com esses valores desse jeito. Mals ae pelo fogo amigo
Ford has rehired hundreds of senior engineers after replacing them with AI backfired and has cost the company billions of dollars. AI adoption is blamed for Ford being the most recalled automaker in the U.S. with 51 recalls covering over 11 million vehicles in the first half of 2026 alone.
ISC 2026 submission deadline extended to July 2! Keynotes by Shweta Shinde and Diego Aranha. Submit your latest work in cybersecurity: isc2026.github.io 🇫🇷 Join us in Rennes this October — including a social event at Mont-Saint-Michel!
ISC 2026: Information Security Conference
isc2026.github.io
Today I learned that a *third* former student got accepted into a top grad program abroad as a direct consequence of my applied cryptography mentorship in Lebanon last year. Walking in Paris with my chest so puffed from pride that it’s pushing cars out of the way and denting buildings
Reminder that I maintain a periodically-updated reading list of papers at the intersection of E2EE and Trust & Safety; suggestions welcome: docs.google.com/spreadsheets...
Encryption + Trust & Safety reading list (updated 2026-05-20)
docs.google.com
Today is both: - First day of the summer semester of my applied cryptography course! WE'RE BACK BABY - Deltarune Chapter 5 is likely to be announced (during today's Nintendo Direct) TODAY IS A GOOD DAY
A list of principles put forth by mathematicians, for mathematicians and other researchers, regarding the use of AI in research. "Number #9 will surprise you!" leidendeclaration.ai
Leiden Declaration on Artificial Intelligence and Mathematics
This declaration calls for action to address the challenges posed by the use of artificial intelligence within mathematics research.
leidendeclaration.ai
It's that time of the year again: Systems Security exam week! If you remember, this is the final task in my graduate-level course where students put theory to practice and perform security analysis of a mobile app. There's so much broken stuff out there that I am having trouble sleeping at night.
🇨🇦's #BillC22 is entering committee study this week - and we're hearing it may become law by end of the month. We never say this: but this is the worst, most privacy-breaking bill we've seen. It MUST be stopped. Speak up against it and read on to learn more: www.openmedia.org/StopC22-bsky 1/
Stop the Surveillance State: Stop Bill C-22!
🚨 Bill C-22 forces every Canadian internet provider, messaging app & cloud service to build surveillance backdoors and store a year of your data. Foreign state hackers exploited similar legislation in...
openmedia.org
the even more fun problem is, that because NL Wallet uses remote app attestation, it checks Googles servers for verification every time you use the app, meaning that Google holds a kill switch for our national ID wallet
Geen Google- of Apple-account? Dan kun je straks geen gebruikmaken van NL Wallet. De mogelijke opvolger van DigiD blijkt afhankelijk van de Amerikaanse techbedrijven. Net nu we opgelucht ademhalen omdat DigiD niet in Amerikaanse handen lijkt te vallen, begint met NL Wallet het riedeltje opnieuw.
We are happy to host Stefano Tessaro (@stefanotessaro.bsky.social), Anja Lehmann, Gregor Seiler, and Sofia Celi (@claucece.bsky.social) as keynote speakers in addition to the contributed talks. Check out the abstracts here: privcryptworkshop.github.io/keynotes.html
PrivCrypt 2026
privcryptworkshop.github.io
(ifølge Diego Aranha udtryk for et bredt og markant skift i Silicon Valley, der i årtier stod for åbenhed, ærlighed og liberale værdier. Nu er de blevet lukkede, de gnubber åbenlyst skuldre med den amerikanske præsident og leverer med glæde til forsvarsministeriet.) Tænk over det.
Er det fis i en hornlygte alt sammen? politiken.dk/del/iJc_haAH...
I'm looking for a PhD student to work with me on formal verification for cryptographic protocols. This is a 4-year position at VU Amsterdam, co-supervised with Kristina Sojakova. Send me an email if you want to know more!
It’s inaccurate to say Mario is brave and Luigi is cowardly Luigi is afraid of death, so he runs away from danger. Mario is afraid of living, so he runs towards death. Both brothers are cowards in their own way
There are only two bug classes left: complexity and memory safety. CurveBall (CVE-2020-0601)? Complexity. BigSig (CVE-2021-43527)? Memory safety. Log4Shell (CVE-2021-44228)? Complexity. BlueKeep (CVE-2019-0708)? Memory safety. Heartbleed looks like memory safety, but it's actually complexity.
We performed a security analysis of the LINE messenger in our latest paper, "LINE-Break: Cryptanalysis and Reverse Engineering of Letter Sealing", to appear in ACM ASIACCS’26. Joint work with Thomas Kingo Mogensen and Adam B. Hansen @csaudk.bsky.social. Full technical details at linebreak.info
We analyze its underlying end-to-end encryption (E2EE) protocol Letter Sealing v2 (LSv2) and show that a TLS Man-in-the-Middle (MitM) or malicious server can compromise integrity, authenticity, and confidentiality in various experimentally verified attacks.
linebreak.info
Impossible to disagree with a single word that Ben Rhodes (Obama era NSC official) is saying here:
I should add to this: winner of best paper award at Eurocrypt 2026!! As a single author. During his PhD. Incredible achievement!(protip: he will graduate soon-ish 👀)
Single author, fifteen pages, reduces the bit complexity of millenia-old UOV instances!!
CC @janiceascari.bsky.social @rubensvalente.bsky.social @ritchieguy.bsky.social @dfaranha.bsky.social @camposmello.bsky.social @miriamleitao7.bsky.social @igorgadelham.bsky.social @dharazim.bsky.social @imont.bsky.social @shalders.bsky.social
Menos de 60 dias após o lançamento do documentário ‘A Maldição do Theatro’ (Produção da Televisual que assino roteiro e direção), hoje foi retomada a obra do Theatro Dom Pedro, que se arrasta desde 2019, com o palco fechado. O clique é do amigo Márcio Nunes.🧶👇
Fernando is looking for a PhD student www.iacr.org/jobs/item/4164 Fernando is excellent, you should consider applying.
PhD position in Cryptanalysis
iacr.org
Speaker Nikolas Melissaris talks about What Is Cryptography Hiding from Itself? by Diego F. Aranha and Nikolas Melissaris.
The room gets philosophical. Cryptography & Society chaired by Nick Sullivan ( @nicksullivan.org ): what is crypto hiding from itself? Security vs. interoperability? CRA policy? Proofs that aren't enough? And Nadim Kobeissi on teaching crypto in post-crisis Lebanon. #realworldcrypto
Come be part of Cedarcrypt, our historic new initiative to grow cryptography research, development and representation in the Levant region! We're seeking speakers and workshop leaders: our call for submissions is open! Learn more: cedarcrypt.org Please spread the word!
Cedarcrypt 2026 - Applied Cryptography Summer School & Conference
Join us for four days of applied cryptography in the Mediterranean. July 13-16, 2026 at AUB Mediterraneo Campus, Paphos, Cyprus.
cedarcrypt.org