Dear TiGER Team,
We would like to express our sincere gratitude for your detailed response to our research findings. We would like to provide our feedback on your responses.
We acknowledge the reference to the paper titled "Analysis of Grid-Based PKE/KEM Algorithms in Round 1 of KpqC Contest," published in KIISC Vol. 33, No. 3, regarding TiGER's inheritance of RLizard and Lizard. However, given the possibility of inaccuracies in that paper, we intend to exclude the claim of TiGER Team's inheritance of RLizard and Lizard from our paper.
We have confirmed that some algorithms in KpqBench are still using previous versions. We plan to update these algorithms to their latest versions.
We have reviewed TiGER's constant-time implementation and will remove any reference to non-constant-time issues as described in the paper.
The error you mentioned appears to be a simple output error. We will address it as part of the code update.
4.1. We have also confirmed that Metamorphic Testing errors found will not be present in the updated code, and we will reflect this in our paper.
4.2. Upon re-evaluation, the benchmarking results for SMAUG128 and SMAUG192 are quite similar. However, this could be attributed to differences in the measurement environment. We plan to reach out to the KpqClean Team to analyze the cause.
Also, we have made revisions to our paper published in the Cryptology ePrint Archive and have requested an update to the editor. The revised paper will be updated soon.
Once again, we sincerely appreciate your thorough analysis of our research findings.
Sincerely,
YongRyeol Choi