Blog Archives

2017 Winter Simulation Conference – Modeling Lessons from Verifying Large Software Systems for Safety and Security

Abstract: Verifying software in mission-critical Cyber-Physical Systems (CPS) is an important but daunting task with challenges of accuracy and scalability. This paper discusses lessons learned from verifying properties of the Linux kernel. These lessons have raised questions about traditional verification approaches, and have led us to a model-based approach for software verification. These models are […]

Categories: Papers

VizSec 2017 – Interactive Visualization Toolbox to Detect Sophisticated Android Malware

Abstract: Detecting zero-day sophisticated malware is like searching for a needle in the haystack, not knowing what the needle looks like. This paper describes Android Malicious Flow Visualization Toolbox that empowers a human analyst to detect such malware. Detecting sophisticated malware requires systematic exploration of the code to identify potentially malignant code, conceiving plausible malware […]

Categories: Papers

MathWorks 2017 Research Summit – Demystifying Cybersecurity for CPS Community

Abstract: It is challenging for the cyber-physical systems (CPS) community to understand the essentials of cybersecurity. “Security Patch” or the “Kill Switch for WannaCry” jargon is at best oversimplified and superficial to convey essential cybersecurity knowledge. Cybersecurity problems are often rooted in the complex CPS software. For the CPS community, the challenge is to understand […]

Categories: Talks

NIT Patna – Learn to Understand, Analyze, and Verify Large Software

Abstract: Massive software systems are being built the way Egyptians were building pyramids, with the sheer force of human labor. Agile development, programming languages, component libraries, and integrated development environments, help but they have not brought down the cost of developing and maintaining software. Software projects continue to run over projected budgets and schedule. The […]

Categories: Short Courses

2017 ACSS Conference Keynote Talk – Euler, the 336 Million Dollar Software Patent: Reflecting on How to Solve Hard Software Problems

Abstract:  The size and complexity of software, the labor cost of programming, and the dire consequences of software malfunction have made it a nightmare to maintain software-intensive cyber-physical systems. Agile development, programming languages, component libraries etc. help but they do not suffice to ensure correctness and cost-effective maintenance of complex software. The central question is: […]

Categories: Talks

ICST 2017 – Transferring state-of-the-art immutability analyses: An experimentation toolbox and accuracy benchmark

Abstract: Immutability analysis is important to software testing, verification and validation (V&V) because it can be used to identify independently testable functions without side-effects. Existing tools for immutability analysis are largely academic prototypes that have not been rigorously tested for accuracy or have not been maintained and are unable to analyze programs written in later […]

Categories: Papers

APSEC 2016 – Projected Control Graph for Accurate and Efficient Analysis of Safety and Security Vulnerabilities

Abstract: The goal of path-sensitive analysis (PSA) is to achieve accuracy by accounting precisely for the execution behavior along each path of a control flow graph (CFG). A practical adoption of PSA is hampered by two roadblocks: (a) the exponential growth of the number of CFG paths, and (b) the exponential complexity of a path […]

Categories: Papers

MILCOM 2016 – Discovering Information Leakage Using Visual Program Models

Abstract:  This tutorial is about new genera of information leakage vulnerabilities, far more difficult to detect than the vulnerabilities that have previously dominated the software security landscape. We will survey attacks that have exploited information leakage vulnerabilities to steal sensitive information. We will show how to discover information leakage vulnerabilities using techniques and tools for […]

Categories: Tutorials

ISSRE 2016 – Mission-Critical Software Assurance Engineering ­Beyond Testing, Bug Finders, Metrics, Reliability Analysis, and Formal Verification

Abstract:  Today, mission-critical software assurance engineering must encompass both safety and cyber-security. Critical missions, whether in defense, government, banking, or healthcare depend on ensuring that a system meets safety requirements, and it does not fail under cyber attack. Mobile, cloud and Internet of Things (IoT) have made software assurance integral to our everyday lives, whether […]

Categories: Tutorials

FVPE 2016 – Insights for Practicing Engineers from a Formal Verification Study of the Linux Kernel

Abstract: Formal verification of large software has been an illusive target, riddled with the problem of scalability. Even if the obstacle of scale may be cleared, major challenges remain to adopt formal verification in practice. This paper presents an empirical study using a top-rated formal verification tool for Linux, and draws insights from the study […]

Categories: Papers