University of Vienna TU Wien ISTA

Project ID: ICT25‑081 Duration: 48 months Funding: €878,848

FARCry — Foundations & Applications of Resource‑Restricted Cryptography

A joint project exploring cryptographic primitives where security or privacy relies on bounded work, time, or space, with a special focus on privacy‑enhancing applications.

cryptography privacy VDFs & PoSW proofs of space memory‑hard functions

Lay summary

Resource‑restricted cryptography (RRC) studies schemes that are secure unless an adversary spends significant work, time, or storage. Beyond uses like Proof‑of‑Work or memory‑hard password hashing, FARCry develops new foundations and primitives—with applications to privacy (e.g., deniability, unlinkability), Sybil‑resistance, and privacy‑preserving contact tracing.

Funded by the Vienna Science and Technology Fund (WWTF) — ICT 2025 call, Grant ICT25‑081.
WWTF