Privacy-Preserving Authentication

Group signatures with probabilistic revocation

We propose a novel notion of probabilistic revocation, which enables a verifier to check the revocation status of the private key of a given signature very efficiently.

Transmitter authentication in dynamic spectrum sharing

We develop novel techniques to enable a regulatory enforcement entity to uniquely identify a transmitter and collect verifiable evidence of a rogue transmission that can be used later during an adjudication process.

Group signatures with probabilistic revocation: A computationally-scalable approach for providing privacy-preserving authentication

We propose a novel notion of probabilistic revocation, which enables a verifier to check the revocation status of the private key of a given signature very efficiently.