MAPLE: A Metadata-Hiding Policy-Controllable Encrypted Search Platform with Minimal Trust

ePrint Report: MAPLE: A Metadata-Hiding Policy-Controllable Encrypted Search Platform with Minimal Trust

Tung Le, Thang Hoang

Commodity encrypted storage platforms (e.g., IceDrive, pCloud) permit data store and sharing across multiple users while preserving data confidentiality. However, end-to-end encryption may not be sufficient since it only offers confidentiality when the data is at rest or in transit. Meanwhile, sensitive information can be leaked from metadata representing activities during data operations (e.g., query, processing). Recent encrypted search platforms such as DORY (OSDI’20) …

confidentiality data encrypted encrypted search encryption end end-to-end eprint report icedrive may metadata pcloud platform platforms policy report search sharing storage store trust