Threshold Structure-Preserving Signatures: Strong and Adaptive Security under Standard Assumptions
Published in Public Key Cryptography (PKC) Conference 2024, Sydney, Australia, 2024
- In this paper, we propose a TSPS based on a standard and non-interactive assumptions called MDDH and kerMDH assumptions.
- We answer the raised open question in the earlier TSPS paper and proposed the first TSPS for arbitrary group element messages.
- We prove its security under a stonger unforgeability notion called T-UF-1 and adaptive adversaries.