With
the advent of a new era in computation and information
technology, Internet of things (IoT) is building block of
ubiquitous computing1 and billions
and billions of Things are connected to the Internet2. Life has happen to be
smarter due to the Internet of Things (IoT) anytime, anywhere, anyplace and
anyone access3. It provide communication between machine-to-machine (M2M)  without human interference4 and human-to-human
(H2H), human-to-thing (H2T), thing-to-thing (T2T) or thing-to-things (T2Ts)5.
IoT networks dynamic, heterogeneous and distributed nature.

 

The IoT include concepts such as
Wireless Sensor Networks (WSN), Machine-to-Machine (M2M) communications and Low
power Wireless Personal Area Networks (LoWPAN), or technologies such as
Radio-Frequency Identification (RFID)6.

 

The IoT technology has full of devices
comprising sensors, actuators, and data processors ,with this computational
resources it will enable the sensing, capturing, collection, and processing of
real-time data from billions of connected devices, and can be envisaged to
serve many different applications including environmental monitoring,
industrial applications, business, and human-centric pervasive applications
such as Smarter cities for
increasing security, green energy, and intelligent parks; intelligent transportation system for
building smarter infrastructure and toward smart logistics systems; agriculture, smart
grids for intelligent monitoring, control and efficient delivery of electricity
to consumers; smart healthcare systems;4

 

The key requirements for IoT
architecture are Resource Control, Energy Awareness, Quality of Service, Interoperability,
Interference Management, Security 100. The IoT challenging issues for
accommodating the trillion of IoT devices are Interoperability, Scalability, Flexibility,
Energy Efficiency, Mobility Management, Security7.

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Security
is crusial one while in some of IoT application such as health care systems,
Industrial applications. In general, Information Security goals are related to
the act of ensure information protection in three different aspects: Privacy,
Integrity and Availability and network security in terms of confidentiality,
authentication.This paper focus on security issues5 related
to security and privacy of IoT network.

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