• reshma jadhav
• Sarita Patil
• Nikita Patil

The Internet of Things (IoT) revolutionizes how devices interact, which not only increases efficiency but also the widespread deployment of underpowered devices. Blockchain's decentralized, tampering-proof architecture offers a promising solution to face these security challenges. This paper detects the convergence of blockchain and IoT, focusing on the use of distributed laser technology (DLT) to enhance IoT security. By surveying existing research, we recognize the main applications, potential benefits, challenges, and future directions for the integration of blockchain in the IoT environment.

Blockchain Technology, Internet of Things (IoT), Decentralized Security, Distributed Ledger Technology (DLT), Consensus Mechanisms, Proof of Work (PoW), Proof of Stake (PoS), Smart Contracts, Privacy-Preserving Techniques, Zero- Knowledge Proofs (ZKP), Homomorphism Encryption, Scalability in Blockchain, IoT Security Challenges, Data Integrity, Access Control, Cryptographic Techniques, Digital Signatures, Merkle Trees, Byzantine Fault Tolerance (BFT), Sybil Attack Prevention, Network Partitioning, Blockchain Interoperability, AI and Blockchain Integration, Quantum Resistant Blockchain, Scalable Consensus Algorithms.

"Decentralized Security Mechanisms for IoT Networks: Exploring Blockchain Integration", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 4, page no.h99-h103, April-2025, Available :http://www.jetir.org/papers/JETIR2504730.pdf

"Decentralized Security Mechanisms for IoT Networks: Exploring Blockchain Integration", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 4, page no. pph99-h103, April-2025, Available at : http://www.jetir.org/papers/JETIR2504730.pdf