Security Evaluation of Quantum Distance-Bounding Protocols Via Semidefinite Programming

Quantum distance-bounding QDB protocols let a verifier check that a prover is both genuine and physically nearby. During a timed fast phase of quantum communication, the verifier measures round-trip times to obtain an upper bound on the prover's distance. For a uniform comparison, we isolate the...

CVE-2025-66017

CVE-2025-66017 affects the CGGMP family (CGGMP21 and CGGMP24). The vulnerability arises from improper use of presignatures in specific configurations, allowing signature forgery or reduced security. Affected details indicate that in CGGMP21 <= 0.6.3 and CGGMP24

EUVD-2025-199640

CGGMP24 is a state-of-art ECDSA TSS protocol that supports 1-round signing requires 3 preprocessing rounds, identifiable abort, and a key refresh protocol. In versions 0.6.3 and prior of cggmp21 and version 0.7.0-alpha.1 of cggmp24, presignatures can be used in the way that significantly reduces...