Abstract
Most of the existing file encryption models are based on international cryptographic algorithms, and lack of flexibility when facing the changing security environment. To solve these problems, we propose a multi-secret-level flexible encryption protection model (Muselfen-PM), which is suitable for environments with the requirement of safe storage. There are three levels of encryption protection, including low, medium and high levels of security. Domestic cryptographic algorithms SM3 and SM4 with high security are used in the model. In order to improve the security of the key, a dynamic key generation and inverse key storage mechanism are designed in the high security protection mode. The model is used in a cloud storage system, which runs well and can effectively protect the confidentiality and security of documents.
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Acknowledgments
This work is supported by the major science and technology projects of Anhui Province under Grant (No. 201903a05020011), the Anhui Provincial Quality Engineering Project (No. 2020szsfkc0752), Anhui Province Online Teaching Demonstration University Project (No. 2020xssfgx14) and Hefei University Quality Engineering Project (No. 2020hfukcsz02).
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Wang, C., Zhou, Z., Li, H., Li, Z., Huang, B. (2021). A Multi-level Elastic Encryption Protection Model. In: Lu, W., Sun, K., Yung, M., Liu, F. (eds) Science of Cyber Security. SciSec 2021. Lecture Notes in Computer Science(), vol 13005. Springer, Cham. https://doi.org/10.1007/978-3-030-89137-4_16
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DOI: https://doi.org/10.1007/978-3-030-89137-4_16
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