News and Research articles on Electronic identification

Volume 14, Issue 3

The impact of zero-knowledge proofs on data minimisation compliance of digital identity wallets

Emanuela Podda, Università degli Studi di Milano
Pol Hölzmer, University of Luxembourg
Alexandre Amard, University of Luxembourg
Johannes Sedlmeir, University of Münster
Gilbert Fridgen, University of Luxembourg
PUBLISHED ON: 30 Jul 2025 DOI: 10.14763/2025.3.2019

Zero-knowledge proofs allow the implementation of the data minimisation principle imposed by the GDPR in digital identity wallets and the related personal data transactions, therefore representing a reasonable option to be enforced by lawmakers.

KEYWORDS: Electronic attestation, Electronic identification, eIDAS, GDPR, Zero-knowledge proofs