Stratus: Check and Share Encrypted Data among Heterogeneous Cloud Storage

A cloud storage service is never sufficient if it only guarantees one of data confidentiality and integrity. Remote storage without encryption could expose private information to outsiders; while storage without integrity could be appended with garbled and useless cipher. This paper presents the Stratus, an integrated encrypted storage atop of heterogeneous cloud storage. Standing on user's perspective, we focus on guaranteeing convenient access and integrity verification to the clouds. Also, Stratus preserves implicitly the folder hierarchy of the original storage and allows painless data migration and sharing without backward decryption. By the technique of dummy list, Stratus is able to perform lazy deletion, reducing access overhead. In particular, we use a novel authentication method, the Binomial Merkle Forests (BMF), to offer a lightweight and public verifiable proof of integrity checking. Other salient features of Stratus include assured deletion and space query in O(log N).

並列關鍵字

Cloud storage ； Integrity checking ； Merkle hash tree ； Ensured deletion ； Lazy deletion

被引用紀錄

Chen, Y. S. (2013). 彙集對稱式認證：從感測點到雲端 [doctoral dissertation, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2013.01152

延伸閱讀

Zhuang, Z. Y., Hsu, Y. C., Liu, H. H., & Wu, C. H. (2016). The Centrifuge of Cloud Service: Separated Cryptographic and Ciphered-storage Services. 資訊安全通訊, 22(4), 39-64. https://www.airitilibrary.com/Article/Detail?DocID=a0000270-201610-201611070015-201611070015-39-64
Wang, J., Yu, X., & Zhao, M. (2015). Fault-Tolerant Verifiable Keyword Symmetric Searchable Encryption in Hybrid Cloud. International Journal of Network Security, 17(4), 471-483. https://doi.org/10.6633/IJNS.201507.17(4).12
Selvarani, P., & Visu, P. (2015). Multi-model Bio-cryptographic Authentication in Cloud Storage Sharing for Higher Security. Research Journal of Applied Sciences, Engineering and Technology, 11(1), 95-101. https://www.airitilibrary.com/Article/Detail?DocID=20407467-201509-201601200030-201601200030-95-101
Lan, C., Li, H., Yin, S., & Teng, L. (2017). A New Security Cloud Storage Data Encryption Scheme Based on Identity Proxy Re-encryption. International Journal of Network Security, 19(5), 804-810. https://doi.org/10.6633/IJNS.201709.19(5).18
Huang, K. Y. (2012). A Secure and Elastic Cloud Data Encryption System [master's thesis, National Chiao Tung University]. Airiti Library. https://doi.org/10.6842/NCTU.2012.00465

國際替代計量

Stratus: Check and Share Encrypted Data among Heterogeneous Cloud Storage

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