PriSrv: Privacy-Enhanced and Highly Usable Service Discovery in Wireless Communications

• URL: http://arxiv.org/abs/2606.05821v1
• Date: Thu, 04 Jun 2026 08:00:31 GMT
• Title: PriSrv: Privacy-Enhanced and Highly Usable Service Discovery in Wireless Communications
• Abstract summary: Existing protocols provide limited privacy protection, leaking sensitive device information and opening routes to network attacks.<n>This paper proposes a private service discovery protocol, called PriSrv, which enables both service providers and clients to specify fine-grained authentication policies.
• Score: 43.30406587083713
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Service discovery is essential in wireless communications. However, existing protocols provide limited privacy protection, leaking sensitive device information and opening routes to network attacks. This paper proposes a private service discovery protocol, called PriSrv, which enables both service providers and clients to specify fine-grained authentication policies before establishing connections. PriSrv achieves this via a dual-layer matching architecture: an outer layer filters mismatched entities using public attributes, while an inner layer handles mutual authentication using selectively disclosed private attributes. As a core component, we introduce the primitive of anonymous credential-based matchmaking encryption (ACME), which enables dual-layer matching in a single step to achieve bilateral policy control, selective attribute disclosure, and multi-show unlinkability. To instantiate ACME, we design a fast anonymous credential (FAC) scheme providing constant-size credentials and efficient verification. We demonstrate PriSrv's interoperability by integrating it with popular wireless frameworks including EAP, mDNS, BLE, and AirDrop. Detailed formal security proofs and extensive performance evaluations across desktop, laptop, smartphone, and Raspberry Pi platforms demonstrate that PriSrv provides enhanced privacy guarantees with high usability, achieving secure discovery in less than one second on mainstream mobile devices.

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