Abstract

Current blockchain technologies lack adapt- ability required to accommodate incoming heterogeneous devices as nodes in the Blockchain network. This inability becomes more pronounced when it comes to blockchains for Internet of Things (IOT) due to varied capabilities and heterogeneity of constituent devices in IOT network. Specifically, security solutions which are used by Blockchain in IoT domain lack support for adapting with different network resources, ranging from low power devices to high end servers. This paper presents an adaptive security framework for blockchain based IOT architectures. The security framework consists of a dynamic resource computation algorithm based on which the network adapts to the existing resources and decides which security services to offer.

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