A Layer-wise Security Analysis for Internet of Things Network: Challenges and Countermeasures

Internet of things is a vast domain, still spreading over different areas of the society, with a fast pace. The Connected IoT devices will increase in rapid pace and it is expected to extend up to 20 billion IoT devices till 2020. According to digital security firm Gemalto IoT endpoint spending will reach approximately $3tr by 2020 and has potential to generate $19tr in next decade. IoT is combination of hardware and software, where Hardware may consists of Sensor nodes, Radio Frequency Identification (RFID), Near Field Communication (NFC) and low energy Bluetooth devices etc. Software provides middleware, information queries, data repository and data retrieval and exchange. All WSN devices turns IoT component when it is supervised using internet and significant security issues happen just when nodes are associated with the internet. This acquires a great deal of concerns identified with the privacy and security, standardization and power management. In this paper we have depicted security issues at various layers of IoT and furthermore outlined security solutions for each layer of IoT.