Ring Signatures with User-Controlled Linkability

ePrint Report: Ring Signatures with User-Controlled Linkability

Dario Fiore, Lydia Garms, Dimitris Kolonelos, Claudio Soriente, Ida Tucker

Anonymous authentication primitives, e.g., group or ring signatures, allow one to realize privacy-preserving data collection applications, as they strike a balance between authenticity of data being collected and privacy of data providers. At PKC 2021, Diaz and Lehmann defined group signatures with User-Controlled Linkability (UCL) and provided an instantiation based on BBS+ signatures. In a nutshell, a signer of a UCL group signature …

eprint report ring signatures