Matthieu Rivain

Cryptographer, CEO at @CryptoExperts

[Matthieu Rivain @mrivain]

I'm now on Bluesky: https://t.co/lugss10DSP 😎

[IACRches @IacRches]

Call for CHES Challenge Organizers is now available!
https://t.co/qGJmE080jt
Since 2015, an annual crypto engineering challenge has been successfully organized in collaboration with CHES. If you would like to propose a challenge for the upcoming year, please submit by 31/1/2025.

[Matthieu Rivain @mrivain]

@NinjaLabFr Congrats Camille! 👏🏻

[Matthieu Rivain @mrivain]

CHES (@IacRches) is looking for candidates to organize the next edition of the CHES Challenge in 2025 🏆 Take this opportunity to spotlight and gamify your favorite field of cryptographic engineering. 👉 https://t.co/Y5ire8Wq6l

[CryptoExperts @CryptoExperts]

We're excited to share that NIST has selected the four post-quantum signature candidates co-submitted by CryptoExperts to advance to Round 2 in their call for additional post-quantum signatures.

[IACR @IACR_News]

After the successful launch of the IACR Communications in Cryptology in 2024, the Editors-in-Chief are looking for new Editorial Board members for the 4 issues in 2025.

Please use this form for (self-) nomination: https://t.co/PudOn7DJhn

[Olivier🐿️ @gloupin]

We are going to have 4 permanent positions at @Polytechnique this year (in a 4 year plan, leading up to 8 total + 2 engineers) in Cybersecurity (both starting and prof level).

It could be the occasion to create a new team and or reinforce the existing ones (Crypto and Networks)

[Nigel Smart @SmartCryptology]

Registration and talk submission for https://t.co/PUqxmVRrMd is open...

https://t.co/JqvpWMr4tH

[NinjaLab @NinjaLabFr]

We are very excited to share our last research work: 𝐄𝐔𝐂𝐋𝐄𝐀𝐊, authored by Thomas Roche.

An electromagnetic Side-Channel Vulnerability in the ECDSA implementation of all Infineon security microcontrollers, notably impacting all YubiKey 5 Series.

https://t.co/CUqmlUTRh8

[Clémence Bouvier @melc_bvr]

🚨 The STAP wiki is online!

Visit our new resource featuring symmetric primitives for FHE/MPC/ZK protocols.
Explore the collection: https://t.co/Ol6D9NXdGK

We’re still working on it. If you have any feedback or suggestion, please contact us at [email protected] 🦁

[IACRches @IacRches]

CHES 2024 early registration deadline is Aug 15th, register now!

https://t.co/kkfRAFV1ry

[Garaga @GaragaStarknet]

Garaga is finally here 🔥
With the fastest MSM for BN254, BLS12-381, SECP256K/R1, ED25519; BN/BLS Groth16 smart contract verifier generators.
Are all available at the cheapest cost on @Starknet
next up: audit, bls sig contracts, CLI/npm packages, examples, and @NoirLang verifier

[CryptoExperts @CryptoExperts]

The https://t.co/FgPrhXQ4uR CryptoLib is the Solidity library with the lowest gas cost for ECDSA verification on non-native Ethereum elliptic curves. We were pleased to audit this nice piece of work. Our audit report is available at https://t.co/SZ3uVI4C3n

[Matthieu Rivain @mrivain]

@RenaudDUBOIS10 @CryptoExperts And this is high quality library we enjoyed auditing!

[Tancrède Lepoint @Leptan]

The program of Crypto 2024 is online, with an invited talk by Karthik Bhargavan on formal verification in crypto! #crypto2024 @IACR_News https://t.co/dCzjC08c4p

[Matthieu Rivain @mrivain]

To know more 👀

📜 Our recently updated preprint with @tfeneuil: https://t.co/aET7aGQDTi

📺 Talks at newtpqc and NIST PQC seminars:
https://t.co/I9Ju7RpBrD
https://t.co/BjCJ7OtmZq

[Matthieu Rivain @mrivain]

Short thread on

Threshold Computation in the Head (TCitH),

a framework to construct post-quantum signatures and zero-knowledge arguments. 👉

[Matthieu Rivain @mrivain]

🌉 TCitH bridges MPC in the Head, VOLE in the Head and Ligero -type proof systems.

💍 One application: the shortest post-quantum ring signatures in the current state of the art.

[Kevin McCurley @mccurley]

Are you curious where cryptographers work around the world? Here is a plot of the affiliations that people have listed in eprint: https://t.co/bPphlWnAVu I'm guessing that Russia is under-represented in this data set.

[IACRches @IacRches]

CHES 2024 challenge is up
https://t.co/qoTb4yhMyZ