Paper 2021/1478 Original: eprint.iacr.org/2021/1478 ↗

Zarcanum: A Proof-of-Stake Scheme for Confidential Transactions with Hidden Amounts

sowle
koe
Abstract

This article explores a Proof-of-Stake mining algorithm in an environment where amounts are hidden with homomorphic commitments, in particular, using confidential transactions. Our goal was to avoid revealing amounts and other sensitive information (like which output was used to stake a given block) to blockchain observers when doing staking. Our contribution is a Proof-of-Stake mining scheme that does not reveal amounts and is compatible with ring confidential transactions. We also present an extension to the Bulletproofs+ protocol that allows range proofs on double-blinded commitments, with corresponding security statements.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2022-03-15: last updated
2021-11-08: published
Short URL
https://ia.cr/2021/1478
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2021/1478,
      author = {sowle and koe},
      title = {Zarcanum: A Proof-of-Stake Scheme for Confidential Transactions with Hidden Amounts},
      howpublished = {Cryptology {ePrint} Archive, Paper 2021/1478},
      year = {2021},
      url = {https://eprint.iacr.org/2021/1478}
}
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