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A Note on the Post-Quantum Security of (Ring) Signatures [article]

Rohit Chatterjee, Kai-Min Chung, Xiao Liang, Giulio Malavolta
2021 arXiv   pre-print
Prior to this work, the only known blind-unforgeable schemes are Lamport's one-time signature and the Winternitz one-time signature, and both of them are in the quantum random oracle model.  ...  We present two short signature schemes achieving this notion: one is in the quantum random oracle model, assuming quantum hardness of SIS; and the other is in the plain model, assuming quantum hardness  ...  In Tal Malkin and Chris Peikert, editors, Advances in Cryptology - CRYPTO 2021 - 41st Annual International Cryptology Conference, CRYPTO 2021, Virtual Event, August 16-20, 2021, Proceedings  ... 
arXiv:2112.06078v1 fatcat:potybhcv7nfqbaw4ek5ggiklmu