Profile - Research - Teaching - Projects
Security from Physics

I investigate ways of detecting whether or not transmissions come from genuine devices without relying on the security of encryption keys. My work is focused particularly on M2M and IoT devices. I expect to be publishing elements of this postdoctoral work during 2019. See LoRaPHY.

Key themes and interests:

I use software defined radio (SDR) and digital signal processing (DSP) to derive authentication data from waveform analysis. I am engaged in a number of technology trials to obtain test data, and a significant part of this work currently involves the development of new computational methods to process and visualise wireless data.

Previously I investigated the application of radio ranging to securely reject messages from outside defined physical boundaries. I implemented a prototype called Round-Trip-Time Message Authentication Protocol (RTTMAP) utilising the time-of-flight measurement built into Nanotron NanoPAN devices.

Poster Paper 1 Paper 2

Other Research

I investigate the development of smarter protocols and service architectures to help engineers balance modem security requirements against minimalistic design. A particular challenge is in providing security equivalent to heavyweight standards and protocols on constrained embedded systems.

Key themes and interests:

Part of my work has investigated changes to communications protocols to match them to the network and embedded system design: closing off performance problems whilst maintaining security. One example is DHB-KEY, which implements a variant of Diffie-Hellman in networks with a common communication partner (the gateway). Another has involved collaborative work investigating IPsec Authentication in 6LoWPAN networks.

Poster Paper 1 Paper 2

Publications

See list of publications.

Copyright Tony Chung, unless stated on the credits page.