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Title: Physical Watermarking for Securing Cyber-Physical Systems via Packet Drop Injections

Abstract

Physical watermarking is a well known solution for detecting integrity attacks on Cyber-Physical Systems (CPSs) such as the smart grid. Here, a random control input is injected into the system in order to authenticate physical dynamics and sensors which may have been corrupted by adversaries. Packet drops may naturally occur in a CPS due to network imperfections. To our knowledge, previous work has not considered the role of packet drops in detecting integrity attacks. In this paper, we investigate the merit of injecting Bernoulli packet drops into the control inputs sent to actuators as a new physical watermarking scheme. With the classical linear quadratic objective function and an independent and identically distributed packet drop injection sequence, we study the effect of packet drops on meeting security and control objectives. Our results indicate that the packet drops could act as a potential physical watermark for attack detection in CPSs.

Authors:
 [1];  [1];  [1]
  1. Carnegie Mellon Univ., Pittsburgh, PA (United States)
Publication Date:
Research Org.:
Carnegie Mellon University
Sponsoring Org.:
USDOE Office of Electricity Delivery and Energy Reliability (OE)
OSTI Identifier:
1406349
DOE Contract Number:  
OE0000779
Resource Type:
Conference
Resource Relation:
Conference: 8. IEEE Int'l Conference on Smart Grid Communications (SmartGridComm) , Dresden (Germany), 23-26 Oct 2017
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION

Citation Formats

Ozel, Omur, Weekrakkody, Sean, and Sinopoli, Bruno. Physical Watermarking for Securing Cyber-Physical Systems via Packet Drop Injections. United States: N. p., 2017. Web.
Ozel, Omur, Weekrakkody, Sean, & Sinopoli, Bruno. Physical Watermarking for Securing Cyber-Physical Systems via Packet Drop Injections. United States.
Ozel, Omur, Weekrakkody, Sean, and Sinopoli, Bruno. Mon . "Physical Watermarking for Securing Cyber-Physical Systems via Packet Drop Injections". United States. doi:. https://www.osti.gov/servlets/purl/1406349.
@article{osti_1406349,
title = {Physical Watermarking for Securing Cyber-Physical Systems via Packet Drop Injections},
author = {Ozel, Omur and Weekrakkody, Sean and Sinopoli, Bruno},
abstractNote = {Physical watermarking is a well known solution for detecting integrity attacks on Cyber-Physical Systems (CPSs) such as the smart grid. Here, a random control input is injected into the system in order to authenticate physical dynamics and sensors which may have been corrupted by adversaries. Packet drops may naturally occur in a CPS due to network imperfections. To our knowledge, previous work has not considered the role of packet drops in detecting integrity attacks. In this paper, we investigate the merit of injecting Bernoulli packet drops into the control inputs sent to actuators as a new physical watermarking scheme. With the classical linear quadratic objective function and an independent and identically distributed packet drop injection sequence, we study the effect of packet drops on meeting security and control objectives. Our results indicate that the packet drops could act as a potential physical watermark for attack detection in CPSs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Oct 23 00:00:00 EDT 2017},
month = {Mon Oct 23 00:00:00 EDT 2017}
}

Conference:
Other availability
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