A Trustless GQ Multi-Signature Scheme with Identifiable Abort
Published in 26th Australasian Conference on Information Security and Privacy (ACISP 2021), Perth, Australia, 2021
Recommended citation: Handong Cui and Tsz Hon Yuen. “A Trustless GQ Multi-Signature Scheme with Identifiable Abort.” In Information Security and Privacy (ACISP 2021), Lecture Notes in Computer Science, vol. 13083, pp. 673–693, 2021. https://doi.org/10.1007/978-3-030-90567-5_34
This paper constructs a trustless multi-signature scheme based on class-group Guillou–Quisquater signatures. It removes the RSA trapdoor required in conventional GQ signatures, improves bandwidth efficiency, and provides identifiable abort in the dishonest-majority setting.