1 Luglio 2020

Seminario: "Lossy CSI-FiSh: a practical and provable secure isogeny-based signature" - Federico Pintore

Seminario della serie "CRITTOGRAFIA: dalla teoria alle applicazioni",  in collaborazione con Telsy SPA, azienda del gruppo TIM specializzata in cybersecurity.

"Lossy CSI-FiSh: a practical and provable secure isogeny-based signature"
Federico Pintore - University of Oxford

Mercoledì 1 Luglio 2020 - ore 16:00
Webinar

Abstract: In the last decades, elliptic curves have a been a precious ally for cryptographers in the construction of secure public-key cryptosystems. However, with the possibility of obtaining quantum computers that could implement Shor’s quantum algorithm becoming more concrete in recent years, this happy marriage seemed to have come to an end. Elliptic curves have been recently brought to the attention of cryptographers once again, this time to construct schemes supposed to be secure even against quantum adversaries. These schemes use isogenies (special maps) between elliptic curves, which turned out to be rather elusive for the construction of signature schemes. As a consequence, the first practical isogeny-based digital signature scheme, CSI-FiSh, was proposed only last year. In this talk I will present Lossy CSI-FiSh, a variant of CSI-FiSh with a stronger security proof and almost the same efficiency as CSI-FiSh. This new scheme was designed together with the Oxford Mathematics colleague Ali El Kaafarani and Dr. Shuichi Katsumata (AIST, JP).

Slides dell'evento: Le slides utilizzate durante il seminario possono essere scaricate qui application/pdf (2,89 MB).

Video dell'evento: La registrazione del seminario è disponibile sul canale YouTube del gruppo CrypTO. Video

Pubblicato il: 17/06/2020