Currently, wireless sensor networks (WSNs) and the Internet of Things (IoT) have become useful in a wide range of applications. The nodes in IoT assisted WSN commonly operate on restricted battery units, meaning energy efficiency is a major design issue. Clustering and route selection processes are commonly utilized energy-efficient techniques for WSN. Although several cluster-based routing approaches are available for homogeneous WSN, only a limited number of studies have focused on energy efficient heterogeneous WSN (HWSN). Moreover, security poses a major design issue in the HWSN. This paper introduces an energy efficient cluster-based routing protocol with a secure intrusion detection system in HWSN called EECRP-SID. The proposed EECRP-SID technique involves three main phases: cluster construction, optimal path selection, and intrusion detection. Initially, the type II fuzzy logic-based clustering (T2FC) technique with three input parameters are applied for cluster head (CH) selection. These parameters are residual energy level (REL), distance to the base station (DTBS), and node density (NDEN). In addition to CH selection, the salp swarm optimization (SSO) technique is utilized to select optimal paths for inter cluster data transmission, which results in energy efficient HWSN. Finally, to achieve security in cluster based WSN, an effective intrusion detection system (IDS) using long short-term memory (LSTM) is executed on the CHs to identify the presence of intruders in the network. The EECRP-SID method was implemented in MATLAB, and experimental outcomes indicate that it outperformed the compared methods in terms of distinct performance measures.

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This study seeks to understand the role of institutions and organizations that have used cloud service providers to store and share data as ensuring third-party access to storage is a major challenge to avoid data theft and unwanted access. Hence, in this paper, Blockchain-Based Data Access and Secure Sharing Method (BDASS) is introduced to enhance security processes related to personal data through data access control and secure sharing method, the proposed method uses blockchain aggregation, file system (IPFS), dynamic access control (DAC), and ciphertext-attribute-based encryption (CP-ABE) to enhance the security of personal data. To keep the owner safe, a blockchain-based DAC is designed. To keep data storage and sharing secure, the blockchain-based CP-ABE is designed. In this proposed methodology, the data owner encrypts the data they have stored in IPFS, thus enhancing data security, which has been improved with the help of CP-ABE regarding detailed access policy and data owner. Policy parameters are managed by the DAC. In the proposed methodology, the data owner uses the blockchain to control security and access to the data. Finally, the paper has come up with a set of findings in order to achieve data security and access control for the data owner through the blockchain-based approach. To evaluate the performance of the proposed method, MATLAB was used. The proposed technology also contrasts with existing technologies, such as the Blockchain-Based Security Sharing Scheme for Personal Data (BSSPD) as well as the Rivest-Shamir-Adleman Algorithm (RSA) and Elliptic Curve Cryptography (ECC).

The current deployment of wireless mesh networks requires mobility management to track the current locations of mobile nodes around the network without service interruption. To do so, the Hierarchical Mobile IPv6 protocol has been chosen, which minimises the required signalling by introducing a new entity called the mobile anchor point to act as a local home agent for all visiting mobile nodes in a specific domain. It allows a mobile node to register its local/regional care-of addresses with a mobile anchor point by sending a local binding update message. However, the local binding update is quite sensitive; it modifies the routing to enable mobility in the wireless mesh networks. When a local binding update message is spoofed, an attacker can redirect traffic that is destined for legitimate mobile node either to itself or to another node. This situation leads to an increased risk of attacks. Therefore, this paper contributes to addressing this security issue based on wireless mesh networks by cryptography generation and verification of a mobile node's local and regional care-of addresses, as well as the application of a novel method to verify the reachability of mobile node at claimed local care-of address. This is called the enhanced mobile anchor point registration protocol. The Scyther tool has been used to ensure the proposed protocol accuracy. Furthermore, the performance, in terms of the mobile anchor point registration delay and signalling overhead, is evaluated by using the OPNET modeller simulator.