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InfoResearchPeer-reviewed
Regulator-Friendly Traceable Anonymous Credentials With Secure Outsourceable Record Retrieval
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Summary
The paper proposes PKEET-VPG, a Public-Key Encryption with Equality Test and Variable Public Generator scheme, and its verifiable version VPV, for traceable anonymous credentials. It uses a session-user-level tracing key bound to a single authentication session to prevent tracing-key abuse, and the authors prove OW-CCA2 security. Their comparative experiments indicate lower regulator overhead at a moderate cost in the authentication phase.