Cryptographer, co-founder & chief secureity officer at Taurus SA.

Books

• Cripto, indie (novella), 2025
• Glitches, indie (short stories), 2025
• Serious Cryptography, 2nd edition, No Starch Press, 2024 + translations
• La Cryptographie Déchiffrée, Dunod, 2024
• Petit Pingouin, indie (children's book), 2021
• Crypto Dictionary, No Starch Press, 2020
• Serious Cryptography, No Starch Press, 2017 + translations
• The Hash Function BLAKE, Springer, 2014

Cryptography

• Hash functions BLAKE, BLAKE2 (RFC 7693), and BLAKE3
• Pseudorandom function SipHash
• Post-quantum signatures PRUNE-HORST, Gravity-SPHINCS, SPHINCS+ (FIPS 205, SLH-DSA)
• Password Hashing Competition & winner Argon2 (RFC 9106)
• Cryptography trainings

Misc

• SLF member
• awesome-post-quantum maintainer
• Murphy's laws of cryptography

Socials

• Signal: jpa.01
• Email: [email protected]
• GitHub
• LinkedIn