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InfoResearchPeer-reviewed
MHcast: Metadata-Hiding Multicast With Resilience Against Malicious Clients and Servers
- Published
- Record updated
Summary
MHcast is a metadata-hiding multicast system for end-to-end encrypted messaging, built on two distributed comparison functions with a public mapping. It adds a mailbox access control scheme that stops malicious clients from disrupting multicast with malformed or junk messages, and an identification scheme that lets honest clients help an honest server identify a malicious server. In experiments, its throughput was 2 to 10 times higher than repeatedly using the unicast protocol at a group size of 16, and it supports groups of any size from 0 to N.