Shadow attacks on MEDA biochips


Conference Paper

© 2018 ACM. The Micro-electrode-dot-array (MEDA) is a next-generation digital microfluidic biochip (DMFB) platform that supports fine-grained control and real-time sensing of droplet movements. These capabilities permit continuous monitoring and checkpoint-based validation of assay execution on MEDA. This paper presents a class of "shadow attacks" that abuse the timing slack in the assay execution. State-of-the-art checkpoint-based validation techniques cannot expose the shadow operations. We develop a defense that introduces extra checkpoints in the assay execution at time instances when the assay is prone to shadow attacks. Experiments confirm the effectiveness and practicality of the defense.

Full Text

Duke Authors

Cited Authors

  • Shayan, M; Bhattacharjee, S; Liang, TC; Tang, J; Chakrabarty, K; Karri, R

Published Date

  • November 5, 2018

Published In

International Standard Serial Number (ISSN)

  • 1092-3152

International Standard Book Number 13 (ISBN-13)

  • 9781450359504

Digital Object Identifier (DOI)

  • 10.1145/3240765.3240846

Citation Source

  • Scopus