Fine-grained Data Access Control for Collaborative Process Execution on Blockchain. (arXiv:2207.08484v2 [cs.CR] UPDATED)

Multi-party business processes are based on the cooperation of different
actors in a distributed setting. Blockchains can provide support for the
automation of such processes, even in conditions of partial trust among the
participants. On-chain data are stored in all replicas of the ledger and
therefore accessible to all nodes that are in the network. Although this
fosters traceability, integrity, and persistence, it undermines the adoption of
public blockchains for process automation since it conflicts with typical
confidentiality requirements in …

access access control blockchain control data data access process