Public Ledger for Sensitive Data
This addresses privacy concerns for users of blockchain technology who need to manage sensitive data securely.
The paper tackles the problem of preserving privacy while storing sensitive data on a publicly verifiable ledger, presenting a protocol that enables integrity verification, privacy preservation, and efficient management of data sharing with revocation.
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.