Avoidance and Mitigation of All Packet Drop Attacks in MANET using Enhanced AODV with Cryptography

Abstract

MANET is a decentralized network that has no infrastructure and nodes can communicate with each other by multi-hoping the messages. Due to this nature of MANET, it is prone to many security attacks in which packet drop attacks are very common. Various packet drop attacks like Blackhole attacks, Grayhole attack, Cooperative Blackhole attack, etc are the attacks that become a bottleneck in efficient routing and security in MANET. Various mechanisms are devised in past but none of them prove to be effective against all types of packet drop attacks. In this paper, a mechanism is formulated that enhances the AODV routing protocol with Trueness Level and Cryptography for effectively counter all types of packet drop attacks by mitigating them through avoidance and elimination of source of attack after detection. This mechanism is powered by efficient use of Cryptography in its natural form. This work is compared with published work Extended Data Routing Information mechanism against various parameters like Packet Delivery Ratio, Normalized Control Load, Accuracy and Reliability in the same environment and parameters in MATLAB 2013a.

Capitulation of mitigation techniques of packet drop attacks in MANET to foreground nuances and ascertain trends

“…However, it has some disadvantages like computational and communication overhead, and not fit for dynamic environment. Table 7 shows the detailed review of cryptography‐based schemes.Khanna et al 75 added three new fields (DR, Trueness Level, and Inceptor) to RREQ and RREP packet of AODV. DR Field and Trueness Level Field are common to RREQ and RREP packets, while the third field is used only in RREP.…”

Detection of Wormhole, Blackhole and DDOS Attack in MANET using Trust Estimation under Fuzzy Logic Methodology

“…OLSR protocol gives good result interns of the end to end delay, jitter, packet delivery ratio and Packet dropped. NitinKhanna [16] has enhanced AODV routing protocol by adding Cryptography and Trueness Level for efficient response to different types of packet drop attacks. This is achieved by mitigating them through avoidance and elimination of source of attack after detection.…”

Mitigating Blackhole and Grayhole Attack in MANET using Enhanced AODV with TLTB Mechanism

“…TRACEROUTE [21] mechanism is also very important in the field of MANET as it provides accurate mitigation of co-operative Blackhole attack by using trace packets to break the co-operation among malicious nodes. Enhanced AODV [10] protocol provides addition of new fields that along with the TRUENESS LEVEL [15,[20][21] algorithm provides avoidance from various form of packet drop attacks. Light-weight Trust Based (LTB) mechanism [19] involves light-weight IDS scheme that is flexible enough to use only local information and also some co-operation among neighbouring nodes.…”

“…The intermediate nodes forward the RREQ packet to their neighbours using the same approach. The structure of RREQ and RREP packet in enhanced AODV is presented as follow:- [20] in RREP packet is used for finding out the intermediate that generates the RREP packet so that source can identify the originator of RREP packet.…”

“…This work when use co-operation of neighbourhood leads to high network overhead. Enhanced AODV [20] uses Inceptor field and DR Field for mitigation and detection of both individual and co-operative packet drop attacks. EDRI table [23] used in detection and mitigation of Grayhole attack as it keep track of gray nature of malicious node.…”