## 3 Proposed Method
### Image Encryption
The proposed method also achieves reversibility and separability, which is more practical than the previous methods. However, the increase of tagging bits during pixel bit reconstruction leads to the decrease of the embedding capacity of some images. In the future, further improvement will be tried, to improve the embedding capacity. Furthermore, advanced encryption schemes can be integrated, to enhance security further, enabling resistance against stronger attacks. The authors confirm contribution to the paper as follows: conceptualization, P.L. methodology, Y.Y. and P.L. ; software, P.L. ; formal analysis, Y.Y. ; investigation, F.D. ; data curation, F.D. and P.L. ; writing--original draft, Y.Y. ; writing--review & editing, Y.Y. ; visualization, Y.Y. and P.L. ; supervision, M.Z. ; project administration, M.Z. and F.D. ; funding acquisition, M.Z. and F.D. All authors have read and agreed to the published version of the manuscript. This research was funded by the National Natural Science Foundation of China and National Social Science Funds of China, Fund numbers of the National Natural Science Foundation of China are: 62272478, 62102450, 61872384, 62102451, and 62202496. The fund number of the National Social Science Fund of China is: No. 2022-SKJJ-C-091. National Social Science Funds of China (No. 2022-SKJJ-C-091), and National Defense Science and Technology Independent Research Project (Intelligent Information-Hiding Technology and its Applications in a Certain Field). The data that support the findings of this study are available from the corresponding author upon reasonable request. The authors declare no conflicts of interest. ## References

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