Biblio

In the new era of Internet of Things, the emerging of smart devices makes security and privacy the first requirements and the major challenges of a distributed network. Despite the implementation of security measures, as encryption mechanisms protecting sensor data, and cryptographic algorithms, various attacks seem to undermine the IoT devices security. This paper reports the preliminary results of a side-channel attack (scatter attack) addressed on an 8-bit IoT microcontroller protected by the Advanced Encryption Standard. The attack, based on an high-SNR data acquisition micro-system and a suitable statistical analysis, allows to discover part of the encryption key, demonstrating the security vulnerability of Internet of Things sensor networks protected by the AES.

The Internet of Things (IoT) visualizes a massive network with billions of interaction among smart things which are capable of contributing all sorts of services. Self-configuring things (nodes) are connected dynamically with a global network in IoT scenario. The small things are widely spread in a real world paradigm with minimal processing capacity and limited storage. The recent IoT technologies have more concerns about the security, privacy and reliability. Sharing personal data over the centralized system still remains as a challenging task. If the infrastructure is able to provide the assurance for transferring the data but for now it requires special attention on security and data consistency. Because, centralized system and infrastructure is viewed as a more attractive point for hacker or cyber-attacker. To solve this we present a secured smart contract based on Blockchain to develop a secured communicative network. A Hash based secret key is used for encryption and decryption purposes. A demo attack is done for developing a better understanding on blockchain technology in terms of their comparison and calculation.