Hybrid Authentication Using Node Trustworthy to Detect Vulnerable Nodes

An ad-hoc sensor network (ASN) is a group of sensing nodes that transmit data over wireless link to target node, direct or indirect, through series nodes. ASN becomes high-risk for several security exploits due the node’s limited resources. Internal threats are more challenging protect against than external attacks. The grouped, and calculate each trust level. level result combining internal degrees. Cluster heads (CH) chosen based on anticipated levels. communications then digitally signed by source, encoded using key pair given trustworthy CH, decoded recipient, supervised verifications. It authenticates technique identifying presence both transmitter recipient. Our approach looks neighboring node meets threshold condition authenticate produced. companion reaffirms reliability getting public-key certification. seeking certification issuer must have close trusting relationship. results proposed hybrid authentication (HANT) system modeled tested, suggested outperforms conventional trust-based approaches in throughput, latency, lifetime, vulnerability methods.