# Secure and Efficient Deduplication for Cloud Storage with Dynamic Ownership Management
## 7 Conclusions
As indicated in Section 6.2 and Table 3, our protocol exhibits significantly less computational complexity on the client side compared to previously proposed server-side deduplication protocols. Hence, our protocol offers increased safety compared to SeDaSC and reduces computational cost and time in contrast to other protocols. Through this research, we have presented a protocol that maintains client computational efficiency while supporting data privacy, data integrity, and ownership updates. These improvements are expected to contribute to secure and efficient data management in cloud storage environments. Cloud storage serves primary purposes: a service provider securely stores data from clients while delivering a service, or a client directly stores data in platforms such as Google Drive, AWS S3, and others. Our proposed protocol holds the advantage of guaranteeing computational efficiency for the client. As a result, our protocol has advantages in scenarios where clients directly encrypt and store their data on cloud storage. For future work, it would be interesting to incorporate efficient key revocation techniques [24] into our proposed protocol. This integration would lead to a substantial enhancement in the ownership update. Conceptualization, M.L. ; methodology, M.L. ; validation, M.L. and M.S. ; formal analysis, M.L. ; investigation, M.L. ; writing--original draft preparation, M.L. ; writing--review and editing, M.L. and M.S. ; supervision, M.S. ; project administration, M.S. ; funding acquisition, M.S. All authors have read and agreed to the published version of the manuscript. This research was supported by the Basic Research Program through the National Research Foundation of Korea (NRF) funded by the MSIT (grant number: 2021R1A4A502890711). The data presented in this study are openly available in IEEE Xplore at [[https://doi.org/10.1109/ICDCS.2002.1022312](https://doi.org/10.1109/ICDCS.2002.1022312)]([https://doi.org/10.1109/ICDCS.2002.1022312](https://doi.org/10.1109/ICDCS.2002.1022312)), [[https://doi.org/10.1109/JSYST.2014.2379646](https://doi.org/10.1109/JSYST.2014.2379646)]([https://doi.org/10.1109/JSYST.2014.2379646](https://doi.org/10.1109/JSYST.2014.2379646)), [[https://doi.org/10.1109/TKDE.2016.2580139](https://doi.org/10.1109/TKDE.2016.2580139)]([https://doi.org/10.1109/TKDE.2016.2580139](https://doi.org/10.1109/TKDE.2016.2580139)), [[https://doi.org/10.1109/CloudCom.2013.54](https://doi.org/10.1109/CloudCom.2013.54)]([https://doi.org/10.1109/CloudCom.2013.54](https://doi.org/10.1109/CloudCom.2013.54)), [[https://doi.org/10.1109/INTECH.2016.7845139](https://doi.org/10.1109/INTECH.2016.7845139)]([https://doi.org/10.1109/INTECH.2016.7845139](https://doi.org/10.1109/INTECH.2016.7845139)), [[https://doi.org/10.1109/TSC.2017.2748594](https://doi.org/10.1109/TSC.2017.2748594)]([https://doi.org/10.1109/TSC.2017.2748594](https://doi.org/10.1109/TSC.2017.2748594)), [[https://doi.org/10.1109/IPCCC55026.2022.9894331](https://doi.org/10.1109/IPCCC55026.2022.9894331)]([https://doi.org/10.1109/IPCCC55026.2022.9894331](https://doi.org/10.1109/IPCCC55026.2022.9894331)), reference number [4; 6; 10; 11; 13; 15], WILEY Online Library at [[https://doi.org/10.1002/cpe.6377](https://doi.org/10.1002/cpe.6377)]([https://doi.org/10.1002/cpe.6377](https://doi.org/10.1002/cpe.6377)), reference number [7], Springer at [[https://doi.org/10.1007/97-8-3-642-38348-9_18](https://doi.org/10.1007/97-8-3-642-38348-9_18)]([https://doi.org/10.1007/97-8-3-642-38348-9_18](https://doi.org/10.1007/97-8-3-642-38348-9_18)), [[https://doi.org/10.1007/978-3-319-42280-0_3](https://doi.org/10.1007/978-3-319-42280-0_3)]([https://doi.org/10.1007/978-3-319-42280-0_3](https://doi.org/10.1007/978-3-319-42280-0_3)), reference number [9; 12], and Elsevier's Library at [[https://doi.org/10.1016/j.ins.2020.07.005](https://doi.org/10.1016/j.ins.2020.07.005)]([https://doi.org/10.1016/j.ins.2020.07.005](https://doi.org/10.1016/j.ins.2020.07.005)), reference number [14]. The authors declare no conflict of interest.