Cryptology ePrint Archive: Report 2020/709

Reputable List Curation from Decentralized Voting

Elizabeth C. Crites and Mary Maller and Sarah Meiklejohn and Rebekah Mercer

Abstract: Token-curated registries (TCRs) are a mechanism by which a set of users are able to jointly curate a reputable list about real-world information. Entries in the registry may have any form, so this primitive has been proposed for use -- and deployed -- in a variety of decentralized applications, ranging from the simple joint creation of lists to helping to prevent the spread of misinformation online. Despite this interest, the security of this primitive is not well understood, and indeed existing constructions do not achieve strong or provable notions of security or privacy. In this paper, we provide a formal cryptographic treatment of TCRs as well as a construction that provably hides the votes cast by individual curators. Along the way, we provide a model and proof of security for an underlying voting scheme, which may be of independent interest.

Category / Keywords: cryptographic protocols / Token curation, zero-knowledge proofs, concurrency.

Original Publication (with major differences): Privacy Enhancing Technologies Symposium (PETS) 2020

Date: received 12 Jun 2020, last revised 15 Jun 2020

Contact author: elizabeth_crites at alumni brown edu,mary maller@ethereum org,s meiklejohn@ucl ac uk

Available format(s): PDF | BibTeX Citation

Version: 20200615:093203 (All versions of this report)

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