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InfoResearchPeer-reviewed
A Mercurial-Based Secure Authentication and Reputation Framework for the Multi-Context Metaverse
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Summary
This paper proposes SPARTA, a protocol for avatar authentication in the metaverse that keeps avatars unlinkable to their users. It uses mercurial signatures so users can create multiple unlinkable avatars without repeated registration, and a time-based hash chain so only avatars holding a reputation token can submit feedback on a smart contract. The authors implement it with socket programming on two Raspberry Pi devices, reporting 105 ms end-to-end latency and 17.338 seconds to complete 1000 concurrent authentications (about 57.7 per second).