Analysis of EM Emanations from Cache Side-Channel Attacks on IoT Devices Moumita Dey School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, USA
[email protected] Abstract— As the days go by, the number of IoT devices are growing exponentially and because of their low computing capabilities, they are being targeted to perform bigger attacks that are compromising their security. With cache side channel attacks increasing on devices working on different platforms, it is important to take precautions beforehand to detect when a cache side channel attack is performed on an IoT device. In this paper, the FLUSH+RELOAD attack, a popular cache side channel attack, is first implemented and the proof of concept is demonstrated on GnuPG RSA and bitcnts benchmark of MiBench suite. The effects it has are then seen through EM emanations of the device under different conditions. There was distinctive activity observed due to FLUSH+RELOAD attack, which can be identified by profiling the applications to be monitored. INTRODUCTION Fig. 1. IoT devices demand trend [1] The Internet of Things (IoT) is the next frontier in technology, and there’s already several companies trying to capitalize it. Its a network of products that are connected to the Internet, thus they have their own IP address and can GitHub, Netflix, Shopify, SoundCloud, Spotify, Twitter, and connect to each other to automate simple tasks. As prices a number of other major websites. This piece of malicious of semiconductor fall and connectivity technology develops, code took advantage of devices running out-of-date versions more machines are going online.