Metal: A Metadata-Hiding File-Sharing System
Weikeng Chen, Raluca Ada Popa
Abstract
File-sharing systems like Dropbox offer insufficient privacy because a compromised server can see the file contents in the clear. Although encryption can hide such contents from the servers, metadata leakage remains significant. The goal of our work is to develop a file-sharing system that hides metadataincluding user identities and file access patterns.
Topics & Concepts
MetadataComputer scienceFile sharingWorld Wide WebFile systemOperating systemThe InternetCryptography and Data SecurityAdvanced Data Storage TechnologiesCloud Data Security Solutions