Grafting Key Trees: Efficient Key Management for Overlapping Groups

<p>In cloud computing, immediate access of resources is important due to cost incurred to customer by pay per use model of cloud computing. Usually resource is protected by using cryptography technique. The resource may be shared by multiple members in group. There can be overlapping members to access the multiple resources. Group key management is important to form the group key to access the resource. Group key formation time is crucial for immediate access of protected resource in cloud computing. Thus ternary tree based approach is proposed to form the key for overlapping members accessing resources. Membership event such as join and leave also considered. Through the analysis, it is found that computational overhead is reduced by 23% if ternary key trees are combined than independent ternary key trees. It is also observed that combined ternary key tree outperforms the combined binary key tree approach for group key formation by considering overlapping members. Security requirement analysis of group membership for key formation is also provided in the paper.</p>

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Refocusing Energy to Achieve Results: Four Key Management Skills

PsycEXTRA Dataset ◽

10.1037/e555272012-042 ◽

2010 ◽

Author(s):

Kathleen Page ◽

Mary Loos

Keyword(s):

Key Management ◽

Management Skills

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A Survey on Hierarchical Cluster Based Secure Routing Protocols and Key Management Schemes in Wireless Sensor Networks

International Journal of Scientific Research in Computer Science Engineering and Information Technology ◽

10.32628/cseit183810 ◽

2018 ◽

pp. 18-26

Author(s):

Yugashree Bhadane ◽

Pooja Kadam

Keyword(s):

Routing Protocol ◽

Routing Protocols ◽

Key Management ◽

Energy Efficient ◽

Base Station ◽

Secure Routing ◽

Sensor Nodes ◽

Wireless Sensor ◽

Management Schemes ◽

Cluster Based Routing

Now days, wireless technology is one of the center of attention for users and researchers. Wireless network is a network having large number of sensor nodes and hence called as “Wireless Sensor Network (WSN)”. WSN monitors and senses the environment of targeted area. The sensor nodes in WSN transmit data to the base station depending on the application. These sensor nodes communicate with each other and routing is selected on the basis of routing protocols which are application specific. Based on network structure, routing protocols in WSN can be divided into two categories: flat routing, hierarchical or cluster based routing, location based routing. Out of these, hierarchical or cluster based routing is becoming an active branch of routing technology in WSN. To allow base station to receive unaltered or original data, routing protocol should be energy-efficient and secure. To fulfill this, Hierarchical or Cluster base routing protocol for WSN is the most energy-efficient among other routing protocols. Hence, in this paper, we present a survey on different hierarchical clustered routing techniques for WSN. We also present the key management schemes to provide security in WSN. Further we study and compare secure hierarchical routing protocols based on various criteria.

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