Series Editor: Andreas Spanias, Arizona State University
Secure Sensor Cloud
Vimal Kumar, University of Waikato
Amartya Sen, Oakland University
Sanjay Madria, Missouri University of Science and Technology
e sensor cloud is a new model of computing paradigm for Wireless Sensor Networks (WSNs), which facilitates
resource sharing and provides a platform to integrate dierent sensor networks where multiple users can build their own
sensing applications at the same time. It enables a multi-user on-demand sensory system, where computing, sensing,
and wireless network resources are shared among applications. erefore, it has inherent challenges for providing
security and privacy across the sensor cloud infrastructure. With the integration of WSNs with dierent ownerships,
and users running a variety of applications including their own code, there is a need for a risk assessment mechanism
to estimate the likelihood and impact of attacks on the life of the network. e data being generated by the wireless
sensors in a sensor cloud need to be protected against adversaries, which may be outsiders as well as insiders. Similarly,
the code disseminated to the sensors within the sensor cloud needs to be protected against inside and outside adversaries.
Moreover, since the wireless sensors cannot support complex and energy-intensive measures, the lightweight schemes
for integrity, security, and privacy of the data have to be redesigned.
e book starts with the motivation and architecture discussion of a sensor cloud. Due to the integration of
multiple WSNs running user-owned applications and code, the possibility of attacks is more likely. us, next, we discuss
a risk assessment mechanism to estimate the likelihood and impact of attacks on these WSNs in a sensor cloud using
a framework that allows the security administrator to better understand the threats present and take necessary actions.
en, we discuss integrity and privacy preserving data aggregation in a sensor cloud as it becomes harder to protect data
in this environment. Integrity of data can be compromised as it becomes easier for an attacker to inject false data in
a sensor cloud, and due to hop by hop nature, privacy of data could be leaked as well. Next, the book discusses a ne-
grained access control scheme which works on the secure aggregated data in a sensor cloud. is scheme uses Attribute
Based Encryption (ABE) to achieve the objective. Furthermore, to securely and eciently disseminate application
code in sensor cloud, we present a secure code dissemination algorithm which rst reduces the amount of code to be
transmitted from the base station to the sensor nodes. It then uses Symmetric Proxy Re-encryption along with Bloom
lters and Hash-based Message Authentication Code (HMACs) to protect the code against eavesdropping and false
code injection attacks.
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About SYNTHESIS
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KUMAR • SEN • MADRIA SECURE SENSOR CLOUD MORGAN & CLAYPOOL
Series ISSN: 1938-1727
Secure
Sensor Cloud
Vimal Kumar
Amartya Sen
Sanjay Madria
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