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Matthieu Rivain

@mrivain.bsky.social
99 followers 77 following 8 posts

Cryptographer, CEO @ CryptoExperts www.matthieurivain.com

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Matthieu Rivain @mrivain.bsky.social · 10/06/2026
The CHES Challenge is back! 🔐 HACK@CHES'26: exploit a vulnerable OpenTitan SoC and benchmark AI vs. human security analysis. Earn travel grants and a talk slot at CHES 2026 in Antalya. 👉 hackthesilicon.com/ches26/ #CHES2026 #HardwareSecurity
hackthesilicon.com
HACK@CHES26 - Hack The Silicon
HACK@CHES2026 Antalya, TürkiyeOctober 11 - October 15, 2026 This year, yet another RISC-V soc with security vulnerabilities ready to be exploited Register for HACK@CHES'26 Participating in Hack@CHES T...
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Matthieu Rivain @mrivain.bsky.social · 22/05/2026
I’m very happy to share that two of my post-quantum signature candidates — MQOM and SDitH — have advanced to Round 3 of the ongoing NIST process 🎉 👏 Congrats to the teams behind these submissions. It has been a great journey so far, and I’m excited for what comes next. 👉 mqom.org 👉 sdith.org
mqom.org
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Reposted by Matthieu Rivain
PQCSA @pqcsa.bsky.social · 28/04/2026
How will post-quantum cryptography reshape privacy? PQCSA hosts a workshop on “Privacy in the Post-Quantum Era: Challenges and Migration Strategies” ahead of #CPDP. 📅 May 19 | Brussels ✅ Free 👉 Info & registration: cryptoexperts.com/pqcsa-worksh...
cryptoexperts.com
PQCSA Workshop 2026
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CryptoExperts @cryptoexpertssas.bsky.social · 23/04/2026
CryptoExperts is co-organizing "Privacy in the Post-Quantum Era: Challenges & Migration Strategies" (EU PQCSA), a CPDP pre-event. Discover PQ privacy challenges with industry & public actors. Free to attend. Matthieu (@mrivain.bsky.social) & Mélissa will be there! 🔗 cryptoexperts.com/pqcsa-worksh...
cryptoexperts.com
PQCSA Workshop 2026
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Matthieu Rivain @mrivain.bsky.social · 19/02/2026
🏆 CHES is currently seeking organisers for the CHES 2026 Challenge: ches.iacr.org/2026/callfor... This is your opportunity to gamify and spotlight your favorite crypto engineering topic!
ches.iacr.org
CHES 2026
Cryptographic Hardware and Embedded Systems
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Matthieu Rivain @mrivain.bsky.social · 28/01/2026
Tomorrow, I’ll present SmallWood at the NIST MPTS workshop (csrc.nist.gov/events/2026/...) a preview submission to the NIST MPTC process. SmallWood is a hash-based (plausibly post-quantum) zero-knowledge proof system with competitive proof sizes for relatively small instances. 📄 ia.cr/2025/1085
csrc.nist.gov
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PQCSA @pqcsa.bsky.social · 19/12/2025
We have another event to announce: "PQCSA workshop Open-Source PQC Libraries and Implementations" on 30 Jan in Brussels, co-located with @fosdem.org www.esat.kuleuven.be/cosic/events...
esat.kuleuven.be
PQCSA workshop Open-Source PQC Libraries and Implementations – Migration to post-quantum cryptography
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Reposted by Matthieu Rivain
Real World Crypto Symposium @rwc.iacr.org · 19/12/2025
The accepted talks for Real World Crypto 2026 are now online: rwc.iacr.org/2026/accepte... Thanks to everyone who submitted, and we look forward to the discussions at the symposium.
rwc.iacr.org
RWC 2026 accepted papers
Real World Crypto Symposium
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PQCSA @pqcsa.bsky.social · 10/12/2025
Happy to announce the posting of D1.1 Survey of PQC algorithms D1.3 Hot Topics and Open Problems in Post-Quantum Cryptography D2.1 Survey of PQC protocols pqcsa.eu/deliverables... There are no formally approved deliverables, yet. These drafts are provided as is for the interest of the community.
pqcsa.eu
PQCSA – Post-Quantum Coordinated Support Action
Home page of PQCSAA EU-Project
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Reposted by Matthieu Rivain
Tibor Jager @tiborj.bsky.social · 25/09/2025
The call for papers for PKC 2026 is out: pkc.iacr.org/2026/callfor...
pkc.iacr.org
PKC 2026 call for papers
Public Key Cryptography
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Matthew Green @matthewdgreen.bsky.social · 01/10/2025
The UK is demanding another backdoor in Apple’s encryption. www.ft.com/content/d101...
ft.com
UK makes new attempt to access Apple cloud data
Order issued in September comes after Trump administration said London had backed down in fight over encryption
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Reposted by Matthieu Rivain
Real World Crypto Symposium @rwc.iacr.org · 02/10/2025
8 days left to submit your contributed talk to Real World Crypto 2026. Submit here: submit.iacr.org/rwc2026/ Deadline: October 10
submit.iacr.org
rwc2026
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CryptoExperts @cryptoexpertssas.bsky.social · 23/06/2025
✨ New publication ✨ Thibauld Feneuil & Matthieu Rivain's paper that introduces “Threshold Computation in the Head” (TCitH) paradigm for ZK proofs and PQ signature schemes is published in the Journal of Cryptology’s ZK collection! 📃 ePrint: eprint.iacr.org/2023/1573 📘 Journal: doi.org/10.1007/s001...
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CryptoExperts @cryptoexpertssas.bsky.social · 03/06/2025
🎓 CryptoExperts launches 5 short-format training modules in cryptography! 📚 Post-quantum, side-channel attacks, blockchain & more — for non-specialists 📍 In Paris or on-site. 🇫🇷/🇬🇧 Available in French or English 👉 www.cryptoexperts.com/services/tra...
cryptoexperts.com
Training | CryptoExperts
The website of CryptoExperts
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Reposted by Matthieu Rivain
Nigel Smart @smartcryptology.bsky.social · 03/06/2025
Super pleased to see that Zama has just announced the first recipients of the Zama Cryptanalysis Grants. www.zama.ai/post/announc... The projects supported cover security of FHE, MPC, TEEs and ZK. The teams getting the grants represent some of the leading experts in their respective fields.
zama.ai
Announcing The First Recipients of The Zama Cryptanalysis Grants
The Zama Cryptanalysis Grant Program supports research that challenges the security of today’s privacy-enhancing tech.
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Matthieu Rivain @mrivain.bsky.social · 19/05/2025
The CHES Challenge is coming back in 2025 with two tracks! 🔬 GE Wars: Test your DL-SCA skills on real-world AES EM traces. 🔧 HACK@CHES'25: Dive into hardware security on a custom OpenTitan SoC. 🔗 ches.iacr.org/2025/challen... #CHES2025 #SideChannel #HardwareSecurity
ches.iacr.org
CHES 2025
Cryptographic Hardware and Embedded Systems
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Matthieu Rivain @mrivain.bsky.social · 25/04/2025
CryptoExperts also has its brand new Bluesky account: @cryptoexpertssas.bsky.social
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Matthieu Rivain @mrivain.bsky.social · 25/04/2025
Hello Bluesky world 😎
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