This article proposes a simple, efficient, and easy‐to‐use mechanism to add privacy and fine‐grained access control features to a traditional Blockchain. It uses standard cryptographic algorithms and techniques, along with a novel key derivation algorithm and a fuzzy extractor component (that derives a cryptographic key from a biometric), to make access control functionality very simple for nonexpert users. Such a Blockchain would be suitable for the storage of participant data postings in long‐term–isolated environments.
CITATION STYLE
Adams, C. (2020). A privacy‐preserving Blockchain with fine‐grained access control. SECURITY AND PRIVACY, 3(2). https://doi.org/10.1002/spy2.97
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