2 papers
cs.CR2025
Nicknames for Group Signatures
Guillaume Quispe, Pierre Jouvelot, Gerard Memmi
Nicknames for Group Signatures (NGS) is a new signature scheme that extends Group Signatures (GS) with Signatures with Flexible Public Keys (SFPK). Via GS, each member of a group c…
cs.CR2025
NickPay, an Auditable, Privacy-Preserving, Nickname-Based Payment System
Guillaume Quispe, Pierre Jouvelot, Gerard Memmi
In this paper, we describe the motivation, design, security properties, and a prototype implementation of NickPay, a new privacy-preserving yet auditable payment system built on to…