Secure and Efficient Key Management Scheme in MANETs

International Journal of Engineering & Technology

Mobile ad-hoc networks (MANETS) are infrastructure less networks and the topology of this network is always changing. The nodes can enter and leave the network at any time. These networks require a high security in communication, as its application demands so. Effective key management is the only technique, which can implement to secure the nodes in communication. In adhocnetworks there is no central controller or router such as in wired network. This will make this network more vulnerable to attack. The intruders can easily enter the net-work and can manipulate the contents easily. Traditional key management schemes will not fit for this type of networks. This article, discuss various key management schemes based on routing protocols in mobile ad-hoc network (MANET). It also analyses them in terms of the security and applicability.

Infrastructure less network is MANET which creates the temporary network. Performance and security are its two major issues. Due to its self organizing feature providing runtime network security is tedious task. MANET has been developed as a platform for controlling the applications. Privacy and authentication expands the key management for securing MANET. Due to its dynamic nature of efficient framework for securing the networks a symmetric key establishment is considered. Though MANET is efficient with dynamic infrastructures they are related to various security risks. In this paper, we have proposed Security key management (SKM) paradigm to provide authenticity over information for MANET. It shows Dispense Key method for generation and distribution of the keys. Then compared out framework Security key management (SKM) with our proposed algorithm and Advance Encryption Standard (AES), RSA, DES and shown the increased scalability of our framework. Keywords- SKM; Symmetric; Asymmetric, Manets, Key Generation

Journal of Network and Computer Applications, 2007

In mobile ad hoc networks, due to unreliable wireless media, host mobility and lack of infrastructure, providing secure communications is a big challenge in this unique network en-vironment. Usually cryptography techniques are used for secure communications in wired and wireless networks. The asymmetric cryptography is widely used

2013

Mobile ad hoc networks (MANETs) can be defined as a collection of large number of mobile nodes that form temporary network without aid of any existing network infrastructure or central access point. Due to the nature of MANETs to design and maintaining security is challenging task for researcher in an open and distributed communication environment. This paper we proposed security architecture for MANET grid and optimal key management by combines symmetric key technique and elliptic curve public key technique. The proposed architecture and optimal key management eliminates threats including the man-in-the-middle attack and the Black hole attack can be effectively eliminated under the proposed scheme. The core advantages of the proposed scheme include strong security, scalability, fault-tolerance, accessibility, and efficiency.

Materials Today: Proceedings, 2020

In the recent networking era, Mobile Adhoc Network has been popular as it effectively solves the limitations that were pertaining with single path routers. Multi-path mobile adhoc networks (MANETs) have various advantages which include high throughput, lower time complexity and high energy efficiency. The major challenges here are the key management and secured way of routing. Secure routing ensures data integrity, confidentiality, authorization and authentication and non-repudiation. These requirements are satisfied only by cryptographic algorithms. Key management is the most essential one in cryptography. The management of keys which is integrated with the protocol start with trusted and network with more authentication. In order to ensure the secured broadcasting in MANET, here we proposed a secured multipath routing mechanism for reliable data transmission using cryptographic algorithms. In our proposed method, we are hybridizing the popular Diffie-Hellman method of key exchange and elliptic curve cryptography (HDHECC). First, the nodes are subjected to clustering using the LEACH protocol and the cluster head selection process will be carried out with the help of weight of each node. Here the trust mechanism will be done by using the AOMDV. For the management of keys, every head of the cluster is made to retain its public key of the corresponding member nodes and are made to act only as a router. The proposed technique solves the overhead of the centralized management of keys. Moreover, the requirement to store all the public keys. The propose method is tested for its performance by evaluating the end-end delay, Packet delivery ratio and packet losses. The implementation is carried out using the NS2 simulator.

Computer Networks, 2005

Existing research efforts in key management can only handle very limited number of nodes and are vulnerable to active attacks. In addition, the flexibility and adaptivity of handling dynamic risks in different parts of networks, although critical in the practical usages of ad hoc networks, have been largely ignored. In this paper, we propose a novel hierarchical scheme based on threshold cryptography to address both security and efficiency issues of key management and certification service in Mobile Ad hoc Network (MANET). The main contributions of our key management scheme include: 1. providing various parts of MANET the flexibility of selecting appropriate security configurations, according to the risks faced; 2. providing the adaptivity to cope with rapidly-changing environments; 3. handling of MANETs with a large number of nodes; 4. issuing certificates with different levels of assurance. We also propose two algorithms, which can be used independently from the hierarchical structure, to protect certification services in ad hoc networks from active attacks. Our simulation results show that, compared to the previous work , our second algorithm is much faster in a friendly environment. When the key length is 1024 bits, the process of generating or renewing a certificate in our second algorithm is around six to eight times faster, and the process of generating partial certificates in our second algorithm is around 20-80 times faster. The latter advantage is critical in MANET where intrinsically the less help a node requests from its neighbors, the higher is the chance of obtaining the help. Furthermore, Computer Networks 48 simulation results also show that our two algorithms work well in a hostile environment in which existing schemes work poorly.

In MANETs communication is done using a shared wireless channel. There is no provision for monitoring authority. The nodes in the network need to take the responsibility for both data transfer and also security. For robust security in MANETs, key management scheme is essential. However, secure key management is a challenging problem to be addressed. In this paper, we focused on a hybrid technique that makes use of identity and trust which enables to identify malicious nodes and also convert malicious node into a trusted node. Our hash technique is evaluated with NS2 simulations. The results reveal that the proposed system is able to identify malicious nodes in MANET and handle malicious nodes in such a way that they become trusted nodes.

International Journal of Security Technology for Smart Device, 2019

Remote Network incorporates a bigger favorable position in the present correspondence application like ecological, movement, military and wellbeing perception. To understand these applications it's important to have a solid directing convention. The self-sorting out nature of MANETs makes them appropriate for some applications and henceforth, extensive exertion has been put into anchoring this kind of systems. Secure correspondence in a system is dictated by the unwavering quality of the key administration conspire, which is in charge of creating, circulating and looking after encryption/decoding keys among the hubs. In this paper different key administration plans for MANETs are talked about. This examination work proposes a novel secure Identity-Based Key Management convention making utilization of cryptographic and Information Theoretic Security.

Journal of emerging technologies and innovative research, 2014

Cryptography is one of basis of security solutions for mobile ad hoc networks. Among public key techniques, the identity-based ones are very attractive for mobile environment, mainly due to their simple key management process and reduced memory storage cost. In this paper we give an overview about existing Identity Based Key Management Schemes for MANET. We point out some problems of Identity-based key management schemes in MANETs, which are not addressed and we will explore in the future.