NDLI: PBES: a policy based encryption system with application to data sharing in the power grid

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PBES: a policy based encryption system with application to data sharing in the power grid

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PBES: a policy based encryption system with application to data sharing in the power grid

Content Provider	ACM Digital Library
Author	Bobba, Rakesh AlTurki, Musab Khurana, Himanshu Ashraf, Farhana
Abstract	In distributed systems users need the ability to share sensitive content with multiple other recipients based on their ability to satisfy arbitrary policies. One such system is electricity grids where finegrained sensor data sharing holds the potential for increased reliability and efficiency. However, effective data sharing requires technical solutions that support flexible access policies, for example, sharing more data when the grid is unstable. In such systems, both the messages and policies are sensitive and, therefore, they need to kept be secret. Furthermore, to allow for such a system to be secure and usable in the presence of untrusted object stores and relays it must be resilient in the presence of active adversaries and provide efficient key management. While several of these properties have been studied in the past we address a new problem in the area of policy based encryption in that we develop a solution with all of these capabilities. We develop a Policy and Key Encapsulation Mechanism -- Data Encapsulation Mechanism (PKEM-DEM) encryption scheme that is a generic construction secure against adaptive chosen ciphertext attacks and develop a Policy Based Encryption System (PBES) using this scheme that provides these capabilities. We provide an implementation of PBES and measure its performance.
Starting Page	262
Ending Page	275
Page Count	14
File Format	PDF
ISBN	9781605583945
DOI	10.1145/1533057.1533093
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2009-03-10
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Phasor measurement units (pmus) Policy based encryption Multi-party data sharing Power grid
Content Type	Text
Resource Type	Article

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