Web: https://iacr.org/news/item/19953

Jan. 23, 2023, 3:24 p.m. |

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ePrint Report: Lattice-Based Blind Signatures: Short, Efficient, and Round-Optimal

Ward Beullens, Vadim Lyubashevsky, Ngoc Khanh Nguyen, Gregor Seiler


We give a construction of a 2-round blind signature scheme based on the hardness of standard lattice problems (Ring/Module-SIS/LWE and NTRU) with a signature size of 22 KB. The protocol is round-optimal and has a transcript size that can be as small as 60 KB. This blind signature is around $4$ times shorter than the most compact lattice-based scheme based on standard …

eprint report signatures

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