Mastodawn

Taylor Hornby, paired with Opus 4.8, found a money minting bug in the Zero Knowledge Proof circuit of Zcash.

An element of the Orchard circuit was under-constrained element therefore it was possible to put arbitrary false inputs into an elliptic curve multiplication and still have the multiplication check pass.

Shielded Labs is initiating a project to formally verify the Orchard circuit.

https://shieldedlabs.net/the-orchard-counterfeiting-vulnerability/

The Orchard Counterfeiting Vulnerability - Shielded Labs

By: Zooko Wilcox, Jason McGee, and Taylor Hornby Summary On May 29, 2026, Taylor Hornby discovered a critical counterfeiting vulnerability in Zcash’s Orchard pool. Taylor disclosed the vulnerability to Zcash Open Development Lab (ZODL), who coordinated an ecosystem-wide emergency response to fix the vulnerability, which was completed on June 2. After reviewing Taylor’s report and […]

Shielded Labs

Sylvain 2d ago

Le Temps 🤖 [Bot]2d ago

Souveraineté numérique: la Suisse a beaucoup à apprendre d’une Europe qui ose
https://www.letemps.ch/articles/souverainete-numerique-la-suisse-a-beaucoup-a-apprendre-d-une-europe-qui-ose
ÉDITORIAL. Bruxelles veut imposer la préférence continentale pour certains services numériques critiques. Une idée intéressante dont la Suisse pourrait s’inspirer«Préférence continentale» ou «protectionnisme numérique», voilà des mots qui font frémir certains. Dans un marché numérique mondialisé et d’apparenc...

Souveraineté numérique: la Suisse a beaucoup à apprendre d’une Europe qui ose

ÉDITORIAL. Bruxelles veut imposer la préférence continentale pour certains services numériques critiques. Une idée intéressante dont la Suisse pourrait s’inspirer

Le Temps SA

Sylvain 2d ago

Hacker News 50 2d ago

A Post-Quantum Future for Let's Encrypt

Link: https://letsencrypt.org/2026/06/03/pq-certs
Discussion: https://news.ycombinator.com/item?id=48385114

A Post-Quantum Future for Let's Encrypt

Let’s Encrypt is committed to a post-quantum-safe Web PKI. The path we’re planning to take is Merkle Tree Certificates (“MTCs”), a new approach that adds post-quantum authentication to the web without sacrificing the speed and reliability that have made TLS universal. This post is about these plans and why we believe MTCs are worth pursuing as a key to a post-quantum future. An increasingly urgent problem For much of the last several years, the conversation about post-quantum cryptography has been a conversation about encryption. The reasoning was straightforward: an attacker who records encrypted traffic today might be able to decrypt it years from now once quantum computers can break the underlying math. Authentication, the part of TLS that indicates a server is who it says it is, has been a less urgent problem. A quantum computer needs to forge a signature in real time, not retroactively, so threats to authentication hinge on the existence of a cryptographically relevant quantum computer (CRQC).

Sylvain 4d ago

Linus Gasser 4d ago

https://careers.epfl.ch/job/Lausanne-Research-Software-Engineer/1164820255/

Are you an expert in cryptography? Wanna work on an interesting research project?

Come and join our team!

#RSE

Research Software Engineer

Sylvain 4d ago

Insomni'hack 4d ago

🚨 One more week to submit your workshop ideas!

📝✨ Still have an innovative idea or an exciting topic to share? You’re in luck!

We’re extending the deadline to give everyone a chance to contribute. Don’t miss this opportunity to make your voice heard and shape our program.

👉 Submit your proposals by the end of the week: https://cfp.insomnihack.ch/workshhops-2027/cfp

#CyberSecurity #CFP #InfoSec

Sylvain 4d ago

Insomni'hack 5d ago

The excitement is building at Insomni'hack! 🎉 Our Call for Talks is officially open.

If you have a compelling cybersecurity subject to discuss, we want to hear from you! Submit your proposal from June 1st to August 23rd and be part of this incredible event.

Scheduled from February 4th to 5th, the conference is your platform to share your insights.

👉 Apply now on our website: https://cfp.insomnihack.ch/insomnihack-2027/cfp

hashtag#CyberSecurity hashtag#CFP hashtag#InfoSec

Sylvain May 26

CosicBe May 26

Sharing is caring: the recordings of the #PQCSA workshop on Post-Quantum Cryptographic Protocols (#Eurocrypt 2026 affiliated event in Rome) are now freely available on our YouTube channel!
https://www.youtube.com/playlist?list=PLiHaXFHjrqYcfzQ4QLj7kNaADf5u5Awvs
#postquantum #quantum

PQCSA workshop on Post-Quantum Cryptographic Protocols (Rome, 9th May 2026)

YouTube

Sylvain May 26

Insomni'hack May 26

The countdown is on! Only 6 days remaining to submit your workshop's proposal for #INSO27! 🎉

Our Call for Workshops is still open until May 31. Do you have an exciting cybersecurity topic you'd love to share with our community? Don’t miss this opportunity!

Workshops will be held from February 1st to 3rd. Now's the time to showcase your expertise!

👉 Apply now on our website: https://ow.ly/QbzF50Z45Fm

#CyberSecurity #CFP #InfoSec