No abstract

Node heterogeneity such as different transmission range, battery backup and mobility leads to several issues for the network. To concentrate on these issues, we need some alternatives which are able to adapt to different characteristics and make decisions for smooth functioning. In a few years, numerous efforts have been dedicated to clustering methods for wireless mobile ad-hoc networks in order to results efficient and correct routing procedures. In the context of clustering devices of a cluster nominated as cluster member, cluster head and cluster gateway on the basis of different roles. Clustering leads to cluster-head and gateway selection overhead that requires focusing by researchers. The motive of the work is to study and analyze effects of heterogeneity properties. With this, an efficient gateway selection method is also proposed. The result of the proposed method is evaluated by considering several network performance parameters such as routing overhead, throughput, network lifetime.

Authentication and cryptosystems are two examples of methods for ensuring user identification and data confidentiality. Because of its one-way nature, hashing is used to verify the identity and accuracy of data travelling across an open medium. It detects unlawful modifications and changes made to transmissions. Digital signature, which deals with document uniqueness and creator oneness, are a well-known application of hashing. It is updated by adding more information about the users' attributes and is classified as an attribute-based signature (ABS). We investigated various past approaches to the ABS phenomena and discovered certain unsolved challenges, resulting in a solution that decreases the difficulty level, utilization, and operating expense coupled with signature creation and confirmation. For focusing the method of digital signatures using elements and their first order logic, we suggested a unique Attribute Based Signature Architecture for Transferring Digital Document. The system includes flexible primitives that give signing parties complete control over signature generation as well as policy-based access security constraints. It has a message-based first order logic and protects the secrecy of signatures. After examining the technique logically, various benefits were discovered, which will be confirmed soon by the implementation solution over the recommended framework under the specified key.