Dr. Lawrie Brown is a honorary senior lecturer in the School of Engineering and Information Technology at UNSW Canberra at the Australian Defence Force Academy, following his retirement in 2016. His research interests include communications and computer systems security, safe mobile code execution, and cryptography. His current research interests concern the use of Proxy Certificates for Client Authentication, which he started during his 2010 sabbatical to the the Dept of Telematics at NTNU (Norwegian University of Science and Technology) in Trondheim, Norway, as a NordSecMob scholar with support from the European Commission under the Erasmus Mundus program. He has previously worked on the design and implementation of private key block ciphers, in particular the LOKI family of encryption algorithms; and on the design of safe mobile code environments using the functional language Erlang.  

He is the co-author of a text on Computer Security with well known US IT textbook author William Stallings, originally published by Pearson Education in August 2007, and now in its 4th edition in 2017.