NDLI: Silverline: toward data confidentiality in storage-intensive cloud applications

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Silverline: toward data confidentiality in storage-intensive cloud applications

Content Provider	ACM Digital Library
Author	Zhao, Ben Y. Kruegel, Christopher Puttaswamy, Krishna P. N.
Abstract	By offering high availability and elastic access to resources, third-party cloud infrastructures such as Amazon EC2 are revolutionizing the way today's businesses operate. Unfortunately, taking advantage of their benefits requires businesses to accept a number of serious risks to data security. Factors such as software bugs, operator errors and external attacks can all compromise the confidentiality of sensitive application data on external clouds, by making them vulnerable to unauthorized access by malicious parties. In this paper, we study and seek to improve the confidentiality of application data stored on third-party computing clouds. We propose to identify and encrypt all functionally encryptable data, sensitive data that can be encrypted without limiting the functionality of the application on the cloud. Such data would be stored on the cloud only in an encrypted form, accessible only to users with the correct keys, thus protecting its confidentiality against unintentional errors and attacks alike. We describe Silverline, a set of tools that automatically 1) identify all functionally encryptable data in a cloud application, 2) assign encryption keys to specific data subsets to minimize key management complexity while ensuring robustness to key compromise, and 3) provide transparent data access at the user device while preventing key compromise even from malicious clouds. Through experiments with real applications, we find that many web applications are dominated by storage and data sharing components that do not require interpreting raw data. Thus, Silverline can protect the vast majority of data on these applications, simplify key management, and protect against key compromise. Together, our techniques provide a substantial first step towards simplifying the complex process of incorporating data confidentiality into these storage-intensive cloud applications.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISBN	9781450309769
DOI	10.1145/2038916.2038926
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-10-26
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Data confidentiality Cloud computing Program analysis
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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