Improving MPCitH with Preprocessing: Mask Is All You Need

The MPC-in-the-head with preprocessing (MPCitH-PP) paradigm presents a novel approach for constructing post-quantum digital signatures like Picnic3. This paper revisits the MPCitH-PP construction, analyzing both its offline and online phases and proposing a reformulation of the protocol. By identif...

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Bibliographic Details
Main Authors: Guowei Liu, Guoxiao Liu, Kaijie Jiang, Qingyuan Yu, Keting Jia, Puwen Wei, Meiqin Wang
Format: Article
Language:English
Published: Ruhr-Universität Bochum 2025-03-01
Series:Transactions on Cryptographic Hardware and Embedded Systems
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Online Access:https://tches.iacr.org/index.php/TCHES/article/view/12040
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