Mobile sinks are vital in many wireless sensor applications for efficient data collection,
data querying, and localized sensor reprogramming. Mobile sinks prolong the lifetime of
a sensor network. However, when sensor networks with mobile sinks are deployed in a
hostile environment, security became a critical issue. They become exposed to varieties
of malicious attacks. Thus, anti threats schemes and security services, such as mobile
sink?s authentication and pairwise key establishment, are essential components for the
secure operation of such networks.
Due to the sensors, limited resources designing efficient security schemes with
low communication overhead to secure communication links between sensors and MS
(Mobile Sink) is not a trivial task. In addition to the sensors limited resources, sink mobility
required frequent exchange of cryptography information between the sensors and
MS each time the MS updates its location which imposes extra communication overhead
on the sensors.
In this dissertation, we consider a number of security schemes for WSN (wireless
sensor network) with MS. The schemes offer high network?s resiliency and low communication
overhead against nodes capture, MS replication and wormhole attacks.
We propose two schemes based on the polynomial pool scheme for tolerating
nodes capture: the probabilistic generation key pre-distribution scheme combined with
polynomial pool scheme, and the Q-composite generation key scheme combined with
polynomial pool scheme. The schemes ensure low communication overhead and high
resiliency.
For anti MS replication attack scheme, we propose the multiple polynomial
pools scheme that provide much higher resiliency to MS replication attack as compared
to the single polynomial pool approach.
Furthermore, to improve the network resiliency against wormhole attack, two defensive
mechanisms were developed according to the MS mobility type. In the first
technique, MS uses controlled mobility. We investigate the problem of using a single
authentication code by sensors network to verify the source of MS beacons, and then we
develop a defensive approach that divide the sensor network into different authentication
code?s grids. In the second technique, random mobility is used by MS. We explore the
use of different communication channels available in the sensor hardware combined with
polynomial pool scheme.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/ETD-TAMU-2010-05-7844 |
| Date | 2010 May 1900 |
| Creators | Rasheed, Amar Adnan |
| Contributors | Mahapatra, Rabi N. |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | thesis, text |
| Format | application/pdf |
Page generated in 0.0016 seconds