Cryptonite: A Secure and Performant Data Repository on Public Clouds

Conference · Fri Jun 29 04:00:00 EDT 2012

DOI:https://doi.org/10.1109/CLOUD.2012.109· OSTI ID:1332548

Kumbhare, Alok ^[1]; Simmhan, Yogesh; Prasanna, Viktor

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1. Power System Information & Advanced Technologies LADWP Power System Engineering Division

Cloud storage has become immensely popular for maintaining synchronized copies of files and for sharing documents with collaborators. However, there is heightened concern about the security and privacy of Cloud-hosted data due to the shared infrastructure model and an implicit trust in the service providers. Emerging needs of secure data storage and sharing for domains like Smart Power Grids, which deal with sensitive consumer data, require the persistence and availability of Cloud storage but with client-controlled security and encryption, low key management overhead, and minimal performance costs. Cryptonite is a secure Cloud storage repository that addresses these requirements using a StrongBox model for shared key management.We describe the Cryptonite service and desktop client, discuss performance optimizations, and provide an empirical analysis of the improvements. Our experiments shows that Cryptonite clients achieve a 40% improvement in file upload bandwidth over plaintext storage using the Azure Storage Client API despite the added security benefits, while our file download performance is 5 times faster than the baseline for files greater than 100MB.

• Research Organization: City of Los Angeles Department
• Sponsoring Organization: USDOE Office of Electricity Delivery and Energy Reliability (OE)
• DOE Contract Number: OE0000192
• OSTI ID: 1332548
• Report Number(s): DOE-USC-00192-99
• Country of Publication: United States
• Language: English

Related Subjects

Cloud data storage
Secure data sharing