Yamin Wen

TL;DR: A new generic framework for transforming any ID-based message recovery signature to a secret handshake scheme, whose provability can be determined by the security of underlying signature is presented.

TL;DR: A new revocable secret handshake scheme with backward unlinkability achieves the impersonator resistance against Group Authority (GA), such that group members are protected from being impersonated and framed by a malicious GA.

TL;DR: This work proposes a new Secret Handshake scheme with Multi-Symptom intersection (MSSH), which is derived from a linear-complexity Authorized Private Set Intersection (APSI) based on Schnorr signature and proves MSSH is secure under the Random Oracle Model (ROM).

TL;DR: This work proposes an optimal authorized private set intersection protocol with forward security based on identity-based encryption and designs a new PMA protocol with intersection-policy called IP-PMA, which provides a simple solution for secret handshakes between two members (holding multiple attributes) from the same organization.

TL;DR: Practical solutions, by combining a digital fingerprinting scheme into OT, to provide the pirate-tracing in OT protocols are presented and turn out to be practical.