Abstract:
WLAN has two operating modes; the Ad-Hoc mode or Independent Basic Service Set
(IBSS) and the infrastructure (cellular) mode or Basic Service Set (BSS). In Ad-Hoc
mode all traffic travels peer to peer, while in infrastructure mode all traffic travels
through central access point (AP). Since it is inception Ad-Hoc network proof to be
highly significance in various sensitive and emergency operations, however it is security
has a long standing research problem. Security in ad-hoc network requires both routing
security and data communication security.
This thesis proposes the use of Internet Protocol Security (IPsec) for enhancing security
in Ad-Hoc wireless networks. The implementation of IPsec which consists of the
Encapsulating Security Payload (ESP) and the Authentication Header (AH) is simulated
using the NS-2 simulator. In this setting Ad-Hoc On Demand Distance Vector (AODV)
routing protocol is used. The thesis also tackle one of the import problem in Ad-Hoc
network; the privacy of the legitimate users.
Results from the NS-2 simulated environment are compared against different protocols
e.g., TCP/IP stack and UDP stack with different factors e.g., throughput, jitter, and delay.
Results show that security vulnerability of Ad-Hoc network is relatively enhanced via
using IPsec, and implementation of ESP and AH of IPsec proof to ensure confidentiality
and authenticity of data.
