CAE Tech Talk, Nov. 18

Posted on 11/17/21 7:22 AM

Mark your calendars and come join your friends in the CAE community for a Tech Talk. CAE Tech Talks are free and conducted live in real-time over the Internet so no travel is required. Capitol Technology University (CTU) hosts the presentations using Zoom which employs slides, VOIP, and chat for live interaction. Just log in as “Guest” and enjoy the presentation(s).

Tech Talk Flyer

Presentation 1: Securing Cyber-Physical Systems by Platform Reboot

Date: Thursday, November 18, 2021

Time: 1:00-1:50 p.m. ET

Location: Zoom Meeting
Just log in as "Guest" and enter your name; no password required.

Audience: Students, professors, government

Presenter(s):  Monowar Hasan, Wichita State University

Description:  In this talk, the presenter will discuss techniques to secure cyber-physical systems
(CPS) against cyberattacks, especially those are focused on causing physical damage to the
plants. Physical plants that form the core of CPS have stringent safety requirements. The
presenter will present their ideas on ensuring the "safety" of the physical plant even when the
platform is compromised. In particular, the presenter will present two different approaches to
achieve this goal: (a) restart-based mechanism, which utilizes complete system restarts and
software reloads, and (b) hypervisor-based design that utilizes Trusted Execution Environment
(TEE) such as ARM TrustZone.

Presentation 2: Practical adversarial attack against speech recognition Platforms

Date: Thursday, November 18, 2021

Time: 2:00-2:50 pm EST

Location: Zoom Meeting
Just log in as "Guest" and enter your name; no password required.

Audience: Students, professors, government

Presenter(s):  Shengzhi Zhang, Boston University

Description:  The popularity of ASR (automatic speech recognition) systems, like Google Voice,
Cortana, Amazon Echo, brings in security concerns, as demonstrated by recent attacks. The
impacts of such threats, however, are less clear, since they are either less stealthy (producing
noise-like voice commands), requiring the physical presence of an attack device (using
ultrasound), or not practical (unable to attack the physical speech recognition devices). In this
talk, the presenter will show that not only are more practical and surreptitious attacks feasible
but they can even be automatically constructed. Specifically, the voice commands can be
stealthily embedded into songs, which, when played, can effectively control the target system
through ASR without being noticed. The presenter will present the novel techniques that
address a key technical challenge: integrating the commands into a song in a way that can be
effectively recognized by ASR through the air, in the presence of background noise, while not
being detected by a human listener. Our research shows that this can be done automatically
against real world ASR systems, and even devices like Google Home, Amazon Echo, Apple Siri,
etc.

A recording of both presentations will be available within 48 hours of the presentation.