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Matthieu Rivain

@mrivain.bsky.social

Cryptographer, CEO @ CryptoExperts https://www.matthieurivain.com/

87 Followers  |  78 Following  |  6 Posts  |  Joined: 13.03.2025
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Posts by Matthieu Rivain (@mrivain.bsky.social)

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CHES 2026 Cryptographic Hardware and Embedded Systems

πŸ† 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!

19.02.2026 12:06 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

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.

πŸ“„ ia.cr/2025/1085

28.01.2026 09:44 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

🀩

19.12.2025 22:16 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
PQCSA workshop Open-Source PQC Libraries and Implementations – Migration to post-quantum cryptography

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...

19.12.2025 16:15 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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RWC 2026 accepted papers Real World Crypto Symposium

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.

19.12.2025 19:04 β€” πŸ‘ 23    πŸ” 9    πŸ’¬ 0    πŸ“Œ 1
PQCSA – Post-Quantum Coordinated Support Action Home page of PQCSAA EU-Project

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.

10.12.2025 11:28 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1
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PKC 2026 call for papers Public Key Cryptography

The call for papers for PKC 2026 is out: pkc.iacr.org/2026/callfor...

25.09.2025 17:53 β€” πŸ‘ 8    πŸ” 10    πŸ’¬ 0    πŸ“Œ 0
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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

The UK is demanding another backdoor in Apple’s encryption. www.ft.com/content/d101...

01.10.2025 13:14 β€” πŸ‘ 67    πŸ” 55    πŸ’¬ 5    πŸ“Œ 8
rwc2026

8 days left to submit your contributed talk to Real World Crypto 2026.
Submit here: submit.iacr.org/rwc2026/
Deadline: October 10

02.10.2025 14:29 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0
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✨ New publication ✨
Thibauld Feneuil & Matthieu Rivain's paper that introduces β€œThreshold Computation in the Head” (TCitH) paradigm for ZK proofs and PQ signature schemes is published in the Journal of Cryptology’s ZK collection!
πŸ“ƒ ePrint: eprint.iacr.org/2023/1573
πŸ“˜ Journal: doi.org/10.1007/s001...

23.06.2025 09:37 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Training | CryptoExperts The website of CryptoExperts

πŸŽ“ CryptoExperts launches 5 short-format training modules in cryptography!

πŸ“š Post-quantum, side-channel attacks, blockchain & more β€” for non-specialists
πŸ“ In Paris or on-site.
πŸ‡«πŸ‡·/πŸ‡¬πŸ‡§ Available in French or English

πŸ‘‰ www.cryptoexperts.com/services/tra...

03.06.2025 10:57 β€” πŸ‘ 4    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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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.

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.

03.06.2025 11:53 β€” πŸ‘ 10    πŸ” 5    πŸ’¬ 1    πŸ“Œ 1
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CHES 2025 Cryptographic Hardware and Embedded Systems

The CHES Challenge is coming back in 2025 with two tracks!

πŸ”¬ GE Wars: Test your DL-SCA skills on real-world AES EM traces.

πŸ”§ HACK@CHES'25: Dive into hardware security on a custom OpenTitan SoC.

πŸ”— ches.iacr.org/2025/challen...

#CHES2025 #SideChannel #HardwareSecurity

19.05.2025 08:29 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

CryptoExperts also has its brand new Bluesky account: @cryptoexpertssas.bsky.social

25.04.2025 13:55 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Hello Bluesky world 😎

25.04.2025 13:54 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0