@inproceedings{oai:ynu.repo.nii.ac.jp:02001036, author = {Yasuhiko, Ikematsu and Hyungrok, Jo and Takanori, Yasuda}, book = {Information Security Applications : 24th International Conference, WISA 2023, Jeju Island, South Korea, August 23–25, 2023, Revised Selected Papers}, month = {Jan, Jan}, note = {MQ-Sign is a variant of the UOV signature scheme proposed by Shim et al. It has been suggested as a candidate for the standardization of post-quantum cryptography in Republic of Korea (known as KpqC). Recently Aulbach et al. proposed a practical key recovery attack against MQ-Sign-RS and MQ-Sign-SS with a simple secret key S. In this paper, we propose another attack that is valid for the case of a general secret key S., Information Security Applications 24th International Conference, WISA 2023, Jeju Island, South Korea, August 23–25, 2023,}, pages = {40--51}, publisher = {Springer}, title = {A Security Analysis on MQ-Sign}, year = {2024, 2024} }