Blockchain technology has changed from being the backbone of cryptocurrencies to a gamechanging way to manage data securely an‎d without a central authority in fields including finance, healthcare, an‎d the Internet of Things (IoT). Its key features decentralization, immutability, an‎d transparency make it possible to trust distributed systems, but they also make security problems more complicated an‎d layered. This session critically examines blockchainʹs function in IoT security, highlighting weaknesses at the protocol, network, an‎d application layers, along with the inadequacies of existing cryptographic methods against impending quantum threats. It looks at various lightweight blockchain designs that are made to work with the performance limits of IoT devices an‎d weighs their pros an‎d downsides in terms of scalability, security, an‎d decentralization. The research also looks at how to use privacypreserving methods like zero-knowledge proofs an‎d secure multi-party computation to balance the need for transparency with the need to keep data private. It also looks at real-world uses in areas like e-healthcare, supply chain management, an‎d smart agriculture, showing how blockchain can protect distributed ecosystems. The conversation ends with a list of open research problems, such as post-quantum cryptography, interoperability, AI-based automatic vulnerability discovery, an‎d communication protocols that work across chains. This presentation gives a full picture of what blockchain can do now an‎d what it could do in the future as the trust foundation for safe an‎d scalable IoT networks by bringing together previous studies an‎d pointing out areas for further research.

2/18/2026 12:00:00 AM

89789

1404/12/03

IoT security: Review, blockchain solutions, an‎d open challenges

Blockchain , Internet of Things (IoT) , Security , Cryptography , Decentralization