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On the Performance Analysis of SPHINCS+ Verification
Tae Gu KANG Jinwoo LEE Junyeng KIM Dae Hyun YUM
IEICE TRANSACTIONS on Information and Systems
Publication Date: 2019/12/01
Online ISSN: 1745-1361
Type of Manuscript: LETTER
Category: Information Network
post-quantum cryptography, hash based signatures, SPHINCS+, one-time signatures,
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SPHINCS+, an updated version of SPHINCS, is a post-quantum hash-based signature scheme submitted to the NIST post-quantum cryptography standardization project. To evaluate its performance, SPHINCS+ gives the theoretical number of function calls and the actual runtime of a reference implementation. We show that the theoretical number of function calls for SPHINCS+ verification is inconsistent with the runtime and then present the correct number of function calls.