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Youssef El Housni

Cryptography engineer at EY Blockchain Hub and PhD Student at Ecole Polytechnique (Paris)

EY Blockchain Hub

Ecole Polytechnique

About

I am a cryptogrpahy engineer at EY Blockchain Hub and a PhD student at Ecole Polytechnique and INRIA Saclay under the supervision of Prof. Daniel Augot and Prof. François Morain in the project-team GRACE.

My work at EY focuses on developing cryptographic tools to address privacy and scalability issues in public blockchains. These tools include mainly zero-knowledge proofs, universal accumulators and proxy-reencryption schemes.

My PhD research focuses on pairing-based zero-knowledge proofs and friendly related cryptographic primitives.

Interests

  • Zero-knowledge proofs
  • pairing-based cryptography
  • privacy in blockchains

Education

  • PhD in Cryptography, 2019 - present

    Ecole Polytechnique (Paris)

  • MEng in Electronics, 2016

    ENSEIRB-MATMECA (Bordeaux)

  • BEng in Engineering Sciences, 2014

    ENSEIRB-MATMECA (Bordeaux)

Work experience

 
 
 
 
 

Cryptography engineer

EY Blockchain Hub

Aug 2018 – Present Paris, France
  • Applied cryptography research: zero-knowledge proofs, proxy-reencryption…
  • Blockchain development with focus on privacy
 
 
 
 
 

R&D engineer

Secure-IC

Oct 2016 – Aug 2018 Rennes, France
  • Applied cryptography research: Elliptic curves, bilinear groups, post-quantum (code-based), side-channels countermeasures…
  • Video steganography development on embedded devices
  • Conception of stochastic model and statistical tests for hardware TRNG and PUF

Talks

Optimized and secure pairing-friendly elliptic curve suitable for one layer proof composition

zkSummit 5 - Berlin, Germany (ONLINE)

Nightfall - The Open Source Privacy Solution for Ethereum

Devcon 5 - Osaka, Japan

Elliptic curves in cryptography

ZK-PAR 0x01 - Paris, France

Blog

ZK-PAR 0x01

From my Medium blog - medium.com/@youssef.housni21

Heptadecagon

From my Medium blog - medium.com/@youssef.housni21

ZEXE - Zero-knowledge EXEcution

From my Medium blog - medium.com/@youssef.housni21

Shamir Secret Sharing — The magic 3S Spell

From my Medium blog - medium.com/@youssef.housni21

Zero-knowledge summit - ZK0x03

From my Medium blog - medium.com/@youssef.housni21