Sept. 24, 2023, 6:18 a.m. |

IACR News www.iacr.org

ePrint Report: Searching for ELFs in the Cryptographic Forest

Marc Fischlin, Felix Rohrbach


Extremely Lossy Functions (ELFs) are families of functions that, depending on the choice during key generation, either operate in injective mode or instead have only a polynomial image size. The choice of the mode is indistinguishable to an outsider. ELFs were introduced by Zhandry (Crypto 2016) and have been shown to be very useful in replacing random oracles in a number of applications.


One open question is …

cryptographic eprint report forest functions image key lossy mode report size

SOC 2 Manager, Audit and Certification

@ Deloitte | US and CA Multiple Locations

Open-Source Intelligence (OSINT) Policy Analyst (TS/SCI)

@ WWC Global | Reston, Virginia, United States

Security Architect (DevSecOps)

@ EUROPEAN DYNAMICS | Brussels, Brussels, Belgium

Infrastructure Security Architect

@ Ørsted | Kuala Lumpur, MY

Contract Penetration Tester

@ Evolve Security | United States - Remote

Senior Penetration Tester

@ DigitalOcean | Canada