Paper 2019/713
Public Ledger for Sensitive Data
Riccardo Longo and Massimiliano Sala
Abstract
Satoshi Nakamoto's Blockchain allows to build publicly verifiable and almost immutable ledgers, but sometimes privacy has to be factored in. In this work an original protocol is presented that allows sensitive data to be stored on a ledger where its integrity may be publicly verified, but its privacy is preserved and owners can tightly manage the sharing of their information with efficient revocation.
Note: Second version with extended explanations, construction and proofs updated and generalised to asymmetric pairings, compatible with the more secure and efficient type-3 pairings, simplified and streamlined construction of the static ledger.
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Major revision. Phd Thesis, arxiv
- Keywords
- Privacy-Preserving LedgerBlockchainEnd to End EncryptionSensitive DataRevocationConsentCloudBilinear Groups
- Contact author(s)
- riccardolongomath @ gmail com
- History
- 2020-07-09: revised
- 2019-06-18: received
- See all versions
- Short URL
- https://ia.cr/2019/713
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2019/713,
author = {Riccardo Longo and Massimiliano Sala},
title = {Public Ledger for Sensitive Data},
howpublished = {Cryptology {ePrint} Archive, Paper 2019/713},
year = {2019},
url = {https://eprint.iacr.org/2019/713}
}
