scholarly journals An Improved Outlier Detection Mechanism for Hierarchical Key Management in Hierarchical Mobile Ad-hoc Networks (MANETs)

2019 ◽  
Vol 8 (3) ◽  
pp. 385-392
Keyword(s):  
Outlier Detection ◽  
Key Management ◽  
Key Distribution ◽  
Cryptographic Primitives ◽  
Detection Mechanism ◽  
Public And Private ◽  
Management Scheme ◽  
Management Schemes ◽  
Group Authentication ◽  
Key Management Scheme

The purpose of this paper is to present an outlier detection mechanism for hierarchical key management which utilizes hybrid (public and private) key management scheme for implementing lightweight cryptographic primitives in hierarchical MANETs. Further, a comparative analysis of key management schemes is to be performed for identifying an efficient key management scheme for hierarchical MANETs. In key management methods, public and private group key management schemes are integrated at local level (subgroup) and global level (network). These key management schemes uses various topologies for minimizing communicational and computational costs. After implementing an efficient key management scheme, outliers in network are identified using packet analysis at key generation, key distribution, message transmission and key re-generation phases. It is observed that Teo and Tan key management approach with shamir’s threshold key distribution mechanism is an efficient approach key management scheme for group authentication and hierarchical key management. Further, a minimum improvement of 9.7% and 0.91%, and maximum improvements of 25.3% and 87.7% are observed for Packet Delivery Rate (APDR) and Average Throughput (AT) respectively in a network of 1000 nodes. The proposed method requires four sequential analysis of outlier detection schemes at different layers of MANET protocol stack because single scheme per layer is not efficient in identifying outliers in proposed network. The proposed key management method is useful for MANETs in group authentication and implementation of lightweight cryptographic primitives with secure key. Further, outlier detection mechanism can be extended for identifying various active and passive attacks.

scholarly journals An Efficient Elliptic Curve based Key Management Scheme for Distributed Sensor Networks

2019 ◽  
Vol 4 (6) ◽  
pp. 111-116
Author(s):  
Porkodi Chinniah ◽  
Sangavai Krishnamoorthi
Keyword(s):  
Sensor Networks ◽  
Elliptic Curve ◽  
Key Management ◽  
Key Distribution ◽  
Secret Key ◽  
Distributed Sensor Networks ◽  
Prime Field ◽  
Distributed Sensor ◽  
Management Scheme ◽  
Key Management Scheme

Distributed Sensor Networks are broadly used in many applications and key distribution is a challenging task. In this work, a key management scheme is developed for distributed sensor networks based on elliptic curve cryptography over prime field. Key distribution among the nodes and interactive as well as non interactive protocols for agreement of common secret key for message transmission between two nodes are discussed. The probability for connectivity of the network generated according to the proposed key distribution scheme is discussed in detail. The implementation of the proposed scheme is done using NetSim interfaced with MATLAB. Connectivity of the network is also checked through eigenvalues of the Laplacian matrix of the network.   

scholarly journals Threshold Key Management Scheme for Blockchain-Based Intelligent Transportation Systems

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Tianqi Zhou ◽  
Jian Shen ◽  
Yongjun Ren ◽  
Sai Ji
Keyword(s):  
Cloud Computing ◽  
Big Data ◽  
Intelligent Transportation Systems ◽  
Key Management ◽  
Intelligent Transportation ◽  
Transportation Systems ◽  
Important Application ◽  
Management Scheme ◽  
Management Schemes ◽  
Key Management Scheme

Intelligent transportation systems (ITS) have always been an important application of Internet of Things (IoT). Today, big data and cloud computing have further promoted the construction and development of ITS. At the same time, the development of blockchain has also brought new features and convenience to ITS. However, due to the endless emergence of increasingly advanced types of attacks, the security of blockchain-based ITS needs more attention from industry and academia. In this paper, we focus on exploring the primitives in cryptography to guarantee the security of blockchain-based ITS. In particular, the authentication, encryption, and key management schemes in cryptography are discussed. Furthermore, we propose two methods for achieving the threshold key management in blockchain-based ITS. The proposed threshold key management scheme (with threshold t ) enables various stakeholders to recover a secret if the number of participated stakeholders is at least t . It should be noted that the proposed threshold key management scheme is efficient and secure for multiple users in blockchain-based ITS, especially for the data-sharing scenario.

Dynamic Key Management Scheme for HWSN Using Efficient Pair Wise Key Distribution Technique

2012 ◽  
Vol 5 (4) ◽  
pp. 130-141
Author(s):  
N. Sugandhi ◽  
S. Mirdula ◽  
D. Manivannan ◽  
R. Ranjini ◽  
D.H. Sharmili Minu
Keyword(s):  
Key Management ◽  
Key Distribution ◽  
Management Scheme ◽  
Dynamic Key Management ◽  
Dynamic Key ◽  
Key Management Scheme

Hybrid Key Management Scheme for WSN

2014 ◽  
Vol 513-517 ◽  
pp. 424-430
Author(s):  
Nan Nan Zhao ◽  
Jian Bo Yao
Keyword(s):  
Key Management ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Hierarchical Architecture ◽  
Distributed Architecture ◽  
Storage Overhead ◽  
Management Scheme ◽  
Management Schemes ◽  
Matrix Construction ◽  
Key Management Scheme

Wireless sensor networks are widely applied in various applications. But due to the resource-constrained sensor nodes and the malicious attacks, the traditional key management schemes are not suitable for the network. Contraposing the particularities, many relevant key management schemes are developed for WSNs the network. Based on the framework of WSNs, existing schemes can be classified into two categories: flat distributed architecture and hierarchical architecture. In this paper, a hybrid key management scheme for wireless sensor network is proposed by combining the distributed architecture and the hierarchical architecture. Based on the modified version of Dus matrix construction, this scheme can apply in WSNs with the network topology changes. Compared with existing key management schemes, this scheme can provide sufficient security, nicer key connectivity and low key storage overhead.

scholarly journals A Complete Hierarchical Key Management Scheme for Heterogeneous Wireless Sensor Networks

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Chien-Ming Chen ◽  
Xinying Zheng ◽  
Tsu-Yang Wu
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Low Cost ◽  
Wireless Sensor ◽  
Heterogeneous Cluster ◽  
Management Scheme ◽  
Heterogeneous Wireless Sensor Networks ◽  
Management Schemes ◽  
Key Management Scheme

Heterogeneous cluster-based wireless sensor networks (WSN) attracted increasing attention recently. Obviously, the clustering makes the entire networks hierarchical; thus, several kinds of keys are required for hierarchical network topology. However, most existing key management schemes for it place more emphasis on pairwise key management schemes or key predistribution schemes and neglect the property of hierarchy. In this paper, we propose a complete hierarchical key management scheme which only utilizes symmetric cryptographic algorithms and low cost operations for heterogeneous cluster-based WSN. Our scheme considers four kinds of keys, which are an individual key, a cluster key, a master key, and pairwise keys, for each sensor node. Finally, the analysis and experiments demonstrate that the proposed scheme is secure and efficient; thus, it is suitable for heterogeneous cluster-based WSN.

A New Key Management Scheme for Hierarchical Wireless Sensor Network

2013 ◽  
Vol 385-386 ◽  
pp. 1622-1625
Author(s):  
Chun Yuan Li ◽  
Xiao Tong Zhang ◽  
Yue Qi ◽  
Li Wen He ◽  
Hong Song Chen ◽  
...  
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Key Management ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Management Scheme ◽  
Node Capture ◽  
Management Schemes ◽  
Security Of Network ◽  
Key Management Scheme

Security is critically important for hierarchical wireless sensor networks. Due to the limited resources of the sensor nodes, the traditional key management schemes are not suitable for wireless sensor network. In this paper, a new key management scheme for hierarchical wireless sensor network is proposed, which would be effectively against cluster node capture by supporting multiple keying mechanisms. The security of network is independent on a single key. Compared with the LEAP protocol, our scheme has lower consumption and higher scalability.

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