JP is a cryptographer, who co-designed the widely used hash functions BLAKE2, BLAKE3, and SipHash. He is the Chief Security Officer and co-founder of Taurus, a leading fintech company offering crypto asset infrastructure to financial institutions. He is the author of the reference book Serious Cryptography, and regularly speaks at leading international conferences. JP is based in Lausanne, Switzerland, where he completed a PhD at EPFL after scientific studies in Paris, France.