4 research outputs found
Caching-based Multicast Message Authentication in Time-critical Industrial Control Systems
Attacks against industrial control systems (ICSs) often exploit the
insufficiency of authentication mechanisms. Verifying whether the received
messages are intact and issued by legitimate sources can prevent malicious
data/command injection by illegitimate or compromised devices. However, the key
challenge is to introduce message authentication for various ICS communication
models, including multicast or broadcast, with a messaging rate that can be as
high as thousands of messages per second, within very stringent latency
constraints. For example, certain commands for protection in smart grids must
be delivered within 2 milliseconds, ruling out public-key cryptography. This
paper proposes two lightweight message authentication schemes, named CMA and
its multicast variant CMMA, that perform precomputation and caching to
authenticate future messages. With minimal precomputation and communication
overhead, C(M)MA eliminates all cryptographic operations for the source after
the message is given, and all expensive cryptographic operations for the
destinations after the message is received. C(M)MA considers the urgency
profile (or likelihood) of a set of future messages for even faster
verification of the most time-critical (or likely) messages. We demonstrate the
feasibility of C(M)MA in an ICS setting based on a substation automation system
in smart grids.Comment: For viewing INFOCOM proceedings in IEEE Xplore see
https://ieeexplore.ieee.org/abstract/document/979676
ANALYSIS AND DESIGN OF MACHINE-TYPE COMMUNICATION NETWORKS USING STOCHASTIC GEOMETRY
Ph.DDOCTOR OF PHILOSOPH
Relaying and Radio Resource Partitioning for Machine-Type Communications in Cellular Networks
10.1109/TWC.2016.2645688IEEE Transactions on Wireless Communications1621344 - 135