News
(archive)
Last Updated: January 2023
FormaliSE 2023
Please consider submitting to the 2023 International Conference on Formal Methods in Software Engineering (FormaliSE).
FormaliSE 2023 is taking place in Melbourne between 14--15 May, co-located with ICSE 2023. I, along with Marie-Christine Jakobs of TU Darmstadt, as Program Chairs warmly welcome submissions on topics at the intersection of formal methods and software engineering. We welcome full research papers; case study papers; and shorter research ideas papers as well. Abstracts are due on Januar 16 2023 January 9 2023, with papers due on 27 January 2023 16 January 2023. Please consider submitting.
Time Protection Formalisation Paper at FM 2023
I am delighted to announce that the first major formal methods paper arising from the seL4 Time Protection project will appear at FM 2023. The paper shows how time protection (enforcement of the absence of microarchitectural timing channels) can be formally defined for an operating systems kernel, and how a kernel implementation can in principle be proved to enforce this security guarantee. Major kudos to the two primary researchers on this project, Rob Sison and Scott Buckley.
Optus Breach Media
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In the wake of a massive data breach at Australia's second-largest telecommunications company, Optus, I've spent the past week doing a string of media
appearances, in an effort to explain to victims
how they can protect
themselves from the risk of potential identity theft and fraud, and to
advocate for stronger privacy regimes and improved incentives to
reduce the amount of sensitive
data that Australian businesses are holding and to place the onus onto them for
protecting it. This has been a wonderful foray
into public engagement that began when I wrote the first practical
guide for how impacted customers can respond to this breach, on my
personal blog, where I have actively tracked developments during the
week since. That was picked-up by multiple media resulting in a range
of media appearances across TV, radio, and podcast, and input into various written pieces,
as well as an op ed that I wrote for
Ingenium. These
included:
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About Me
I am an academic in the School of Computing and Information Systems of the University of Melbourne. Prior to joining Melbourne in May 2016,
I was employed in the Software Systems
Research Group of NICTA (now Data61), and was a Conjoint Senior Lecturer in the school of
Computer Science and Engineering of
UNSW. I joined NICTA and UNSW in 2010 from
Oxford, where I completed a D.Phil. (PhD) in Computer Science, awarded in 2011.
Before moving to Oxford, I worked for the
Defence Science and Technology Organisation after my undergraduate study
at the University of Adelaide.
I live in Melbourne with my wife and two children, enjoy (and sometimes write and
record) alternative music,
and spend too much time on Twitter
engaging a hot-cold obsession with Australian politics, security and privacy.
I love great ales, informed by my days in Oxford, and rich reds, like any Adelaide
native.
Research and Collaborations
My research is focused on the problem of how to build highly secure computing
systems cost-effectively. As part of this, I work on ways to assess the security of
computer systems, methods to ensure the absence of vulnerabilities
in programs and systems, methods to detect vulnerabilities in programs, methods for designing
secure systems, and related topics. Below is a snapshot of my current research projects.
Current Research Projects
My current research projects include the following. This list does not include PhD student projects that
are yet to be made public.
- COVERN: Proving information flow security of concurrent programs.
- Time Protection: Proving timing channel freedom for seL4.
- Insecurity Logic: Proving that programs have security vulnerabilities.
- CATCH: Cybersecurity Assurance for Teams of Computers and Humans
- AFLTeam: Collaborative Parallel Fuzzing
Past and Dormant Research Projects
Some of my past and dormant research projects include the following.
My Group
Researchers
Current postdocs:
Previous postdocs and Research Assistants:
Research Students
Current PhD students:
Previous research students:
- Dongge Liu, University of Melbourne (PhD thesis: Software Testing with Monte Carlo Tree Search; supervised with Ben Rubinstein, Gidon Ernst, and Thuan Pham)
- Duc Than Nguyen, University of Melbourne (MPhil thesis: Foundations for Reasoning about Holistic Specifications)
- Robert Sison, UNSW (PhD thesis: Proving Confidentiality and Its Preservation Under Compilation for Mixed-Sensitivity Concurrent Programs; jointly supervised with Carroll Morgan and Kai Engelhardt)
- Daniel Matichuk, UNSW (PhD thesis:
Automation for Proof Engineering:
Machine-Checked Proofs At Scale
; co-supervised with Gerwin Klein)
- David (Knobby) Clarke, University of Melbourne (PhD thesis: Analyses
of Java Programs over Weak Memory; co-supervised with Tim Miller and Antonette Mendoza)
- Yude Lin, University of Melbourne (PhD thesis: Symbolic Execution with Over-Approximation; co-supervised with Tim Miller and Harald Sondergaard)
- Sidney Amani, UNSW (PhD thesis: A Methodology
for Trustworthy File Systems )
- Japheth Lim, UNSW (Honours thesis: Automatically Proving the Correctness of C Code Generation)
- Sudeep Kanav (Masters student from TU Munich, thesis: Compiler Verification for a Data Format DSL)
Working with Me
I'm always looking for motivated students to work with. Check out my page for
prospective research students.
Software and Artifacts
My group has developed various pieces of software, plus formal
artifacts embedded in interactive theorem provers such as program logics and compilers.
All are available under open source licenses.
Software
SecC: Verified Security for Concurrent C Programs
SecC is the first autoactive program verifier able to verify information flow security
for concurrent C programs.
More Information ->
Legion: Principled Automatic Test Case Generation
Legion automatically generates test cases for programs, generalising traditional
concolic testing and fuzzing, orchestrating program exploration via Monte-Carlo
Tree Search.
More Information ->
Underflow: Compositional Vulnerability Detection for C Programs
Underflow is the first first automatic tool able to compositionally detect memory-safety and information-leakage vulnerabilities in C programs.
More Information ->
Artifacts
A
general-purpose logic that enables one to perform under-approximate reasoning about relational
properties, and the fist logic able to prove when programs are insecure.
More Information ->
SecRSL: How to Prove Efficient, Concurrent Programs Secure
The first security separation program logic able to reason about C11's weak
memory concurrency features used by highly-efficient concurrent C programs.
More Information ->
VERONICA: Verified Secure Declassification for Concurrent Programs
VERONICA is a verification method, embedded in the Isabelle/HOL theorem prover, for verifying secure declassification policies for concurrent programs.
More Information ->
A program logic for concurrent C-like programs with pointers, arrays etc., for proving they do not leak sensitive information.
More Information ->
COVERN Compiler: Verified Secure Compilation for Concurrent Programs
The COVERN Compiler is a proof-of-concept compiler embedded in the Isabelle/HOL theorem prover that provably preserves information flow security when compiling concurrent programs.
More Information ->
COVERN Logic: Verified Security for Concurrent Programs
The COVERN logic, embedded in the Isabelle/HOL theorem prover, allows one to prove that concurrent programs do not leak sensitive information.
More Information ->
Bugs
Like any researcher who works on security, my work necessarily involves discovering bugs in software.
As somebody who works on tools for proving things about programs (including the presence of bugs),
my work not only uncovers bugs in ordinary programs but also bugs in
programs that reason about other programs. Below is a
list of some bugs I've uncovered in program analysis tools during my research:
Teaching
In 2022, I am teaching:
I previusly taught:
- SWEN90006 - Software Security & Testing (2016--2021)
- COMP4161 - Advanced Topics in Software Verification (2010, 2011, 2012, 2013, 2014 as Lecturer in Charge, 2015)
- COMP9241 - Advanced Operating Systems (Guest lecturer in Operating Systems Security, 2011, 2012, 2013, 2014, 2015)
I have also taught half-day courses to industry on topics including:
- Separation Logic
- Software Model Checking for C code using
CBMC
If your company develops
software and would like to know how you can more easily detect and remove bugs
during development, and would like to know more, please get in touch.
Service
I am
a
Research Integrity Advisor, serve as an undergraduate Academic Advisor, as well as regularly chairing Academic Misconduct Committee hearings, amongst other things. I am also Deputy Director of the Defence Science Institute.
I am an Associate Editor for IEEE Security & Privacy and serve on a range of Program Committees (see below).
I am a member of IFIP WG 1.7 on Theoretical Foundations of Security
Analysis and Design.
Steering Committees
- ACM Workshop on Programming Languages and Analysis for Security (PLAS) (2016--2020)
Edited Books
Program Committees
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2010
