NDLI: Active adversaries from an information-theoretic perspective: Data modification attacks

Content Provider	IEEE Xplore Digital Library
Author	Mirmohseni, M. Papadimitratos, P.
Copyright Year	2014
Description	Author affiliation: Networked Syst. Security Group, KTH R. Inst. of Technol., Stockholm, Sweden (Papadimitratos, P.) \|\| Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran (Mirmohseni, M.)
Abstract	We investigate the problem of reliable communication in the presence of active adversaries that can tamper with the transmitted data. We consider a legitimate transmitter-receiver pair connected over multiple communication paths (routes). We propose two new models of adversary, a “memoryless” and a “foreseer” adversary. For both models, the adversaries are placing themselves arbitrarily on the routes, keeping their placement fixed throughout the transmission block. This placement may or may not be known to the transmitter. The adversaries can choose their best modification strategy to increase the error at the legitimate receiver, subject to a maximum distortion constraint. We investigate the communication rates that can be achieved in the presence of the two types of adversaries and the channel (benign) stochastic behavior. For memoryless adversaries, the capacity is derived. Our method is to use the typical set of the anticipated received signal for all possible adversarial strategies (including their best one) in a compound channel that also captures adversarial placement. For the foreseer adversaries, which have enhanced observation capabilities compared to the memoryless ones, we propose a new coding scheme to guarantee resilience, i.e., recovery of the codeword independently of the adversarial (best) choice. We derive an achievable rate and we propose an upper bound on the capacity. We evaluate our general results for specific cases (e.g., binary symbol replacement or erasing attacks), to gain insights.
Starting Page	791
Ending Page	795
File Size	304768
Page Count	5
File Format	PDF
ISBN	9781479951864
ISSN	21578117
DOI	10.1109/ISIT.2014.6874941
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Encoding Distortion measurement Noise Upper bound Reliability Stochastic processes
Content Type	Text
Resource Type	Article

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