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Sunspot: A Decentralized Framework Enabling Privacy for Authorizable Data Sharing on Transparent Public Blockchains. (arXiv:2111.03865v3 [cs.CR] UPDATED)
cs.CR updates on arXiv.org arxiv.org
Blockchain technologies have been boosting the development of data-driven
decentralized services in a wide range of fields. However, with the spirit of
full transparency, many public blockchains expose all types of data to the
public such as Ethereum. Besides, the on-chain persistence of large data is
significantly expensive technically and economically. These issues lead to the
difficulty of sharing fairly large private data while preserving attractive
properties of public blockchains. Although direct encryption for on-chain data
persistence can introduce confidentiality, …
blockchains data decentralized framework privacy public sharing