Towards an Optimized BlockChain for IoT

Abstract

ere has been increasing interest in adopting BlockChain (BC), that underpins the crypto-currency Bitcoin, in Internet of ings (IoT) for security and privacy. However, BCs are computationally expensive and involve high bandwidth overhead and delays, which are not suitable for most IoT devices. is paper proposes a lightweight BC-based architecture for IoT that virtually eliminates the overheads of classic BC, while maintaining most of its security and privacy bene ts. IoT devices bene t from a private immutable ledger, that acts similar to BC but is managed centrally, to optimize energy consumption. High resource devices create an overlay network to implement a publicly accessible distributed BC that ensures end-to-end security and privacy. e proposed architecture uses distributed trust to reduce the block validation processing time. We explore our approach in a smart home se ing as a representative case study for broader IoT applications. alitative evaluation of the architecture under common threat models highlights its e ectiveness in providing security and privacy for IoT applications. Simulations demonstrate that our method decreases packet and processing overhead signi cantly compared to the BC implementation used in Bitcoin.

Secure Caching Scheme by Using Blockchain for Information-Centric Network-Based Wireless Sensor Networks

“…On the other hand, when the proposed scheme is not an available scenario (i.e., = 1), i.e., in the traditional environment, the average response time becomes 176 s Note that not only the mining task but also the ICN mechanism is provided in the cloud server in the related studies [14], [15]; therefore, in the conventional scheme, we can assume that there are no ICN-available users, in other words, all users are legacy users. In a practical environment, the caching data are not necessarily available anywhere and anytime in the CH's cache memory.…”

“…Zhang et al [14] and Dorri et al [15] proposed a secure home network system in order to share secure health data by using pervasive social network nodes, such as smartphones, tablet computers, and personal computers. Banerjee et al [16] surveyed the existing security approaches in the Internet of Things domain, and categorized and discussed them into two types (reactive and proactive solutions).…”

Blockchain-Oriented Coalition Formation by CPS Resources: Ontological Approach and Case Study

“…A similar method is considered in relation to a Smart Home scenario in [21]. Also, there is an unchanged transaction log as an advantage of integrating IoT and Blockchain technologies.…”

“…The blockchain is mostly used as immutable storage for information exchange between robots. Information stored in the blockchain could contain records about task and assets distribution [7,21], smart contracts and payment transactions [20], or global knowledge about coalition actions [22]. In combination with IoT, concept blockchain technology can provide more trust for transaction through IoT, due to the storing information about transactions in immutable log that can be verified by every IoT participant.…”

Blokzi̇nci̇ri̇ Tabanli Si̇ber Güvenli̇k Si̇stemleri̇

“…Dorri ve arkadaşlarının bir diğer çalışmasında [13], IoT için iyileştirilmiş yeni bir blokzinciri mimarisi önerilmektedir. Bu çalışmada, Bitcoin'in altyapısını oluşturan klasik blokzinciri kullanımının getirdiği yükleri ortadan kaldırmak için hafif (lightweight) bir blokzinciri mimarisi kullanımından bahsedilmektedir.…”