Abstract
With the increase of data quantity, people have begun to attach importance to cloud storage, however, traditional single cloud can’t ensure the privacy of users’ data to a certain extent. To solve the security issue, we present a multi-cloud storage system called CloudS which spreads data over multiple cloud storage servers by using a new kind of XOR-based non-systematic erasure codes - Privacy Protecting Codes (PPC). For better user experiences and tradeoffs between security and performance, CloudS provides multiple levels of security by a variety of combinations of compression, encryption and coding schemes. In addition, we also put forward a novel Parallel Cyclic Encryption (PCE) scheme to achieve random secret key protection which attains high security and performance. We implement CloudS as a web application which doesn’t require users to perform complicated operations on local.
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Acknowledgments
This work is partially supported by NSF of China (grant numbers: 61373018, 11301288), Program for New Century Excellent Talents in University (grant number: NCET130301) and the Fundamental Research Funds for the Central Universities (grant number: 65141021).
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Shen, L., Feng, S., Sun, J., Li, Z., Wang, G., Liu, X. (2015). CloudS: A Multi-cloud Storage System with Multi-level Security. In: Wang, G., Zomaya, A., Martinez, G., Li, K. (eds) Algorithms and Architectures for Parallel Processing. ICA3PP 2015. Lecture Notes in Computer Science(), vol 9530. Springer, Cham. https://doi.org/10.1007/978-3-319-27137-8_51
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DOI: https://doi.org/10.1007/978-3-319-27137-8_51
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