Fully Homomorphic Encryption with Optimal Key Generation Secure Group Communication in Internet of Things Environment

The Internet of Things or “IoT” determines the highly interconnected network heterogeneous devices where each type communication seems to be possible, even unauthorized. Consequently, security requirement for these networks became crucial, while conventional protocol was identified as unusable in types networks, especially because some classes IoT with constrained resources. Secure group (SGC) environment is vital ensure confidentiality, integrity, and availability (CIA) data swapped within a collection devices. Typically, were resource-constrained limited memory, processing, energy, power, which makes SGC difficult task. This article designs Fully Homomorphic Encryption Optimal Key Generation Group Communication (FHEOKG-SGC) technique environment. presented FHEOKG-SGC mainly focuses on encryption routing securely via communication. To accomplish this, initially an FHE-based secure Next, keys FHE are chosen optimally using sine cosine algorithm (SCA). At same time, plum tree (PTA) applied identification routes network. Finally, employs trust model improve process, key management center used optimal handling keys. simulation analysis tested series experiments, outcomes studied under various measures. An extensive comparative study highlighted improvement over other recent approaches.