International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Kasra Abbaszadeh

Publications and invited talks

Year
Venue
Title
2025
ASIACRYPT
Non-Interactive Zero-Knowledge Arguments with Certified Deletion
Kasra Abbaszadeh Jonathan Katz
We introduce the notion of non-interactive zero-knowledge (NIZK) arguments with certified deletion, a new primitive that enables the recipient of a (quantum) NIZK argument to delete it and obtain a (classical) certificate proving such deletion. We formalize this notion and propose two candidate constructions from standard cryptographic assumptions. Our first construction is based on classical NIZK arguments and quantum-hard one-way functions, but requires both the prover and verifier to run quantum algorithms. We then present an extension based on the learning with errors problem that allows the prover to be classical. Our results have applications to signatures of knowledge and anonymous credentials with certified deletion, which we also define and construct.

Coauthors

Kasra Abbaszadeh (1)
Jonathan Katz (1)