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We consider the problem of communication over a network containing a hidden and malicious adversary that can control a subset of network resources, and aims to disrupt communications. We focus on omniscient node-based adversaries, i.e., the…

Information Theory · Computer Science 2016-05-09 Peida Tian , Sidharth Jaggi , Mayank Bakshi , Oliver Kosut

This letter studies an emerging wireless communication intervention problem at the physical layer, where a legitimate spoofer aims to spoof a malicious link from Alice to Bob, by replacing Alice's transmitted source message with its target…

Information Theory · Computer Science 2016-12-28 Jie Xu , Lingjie Duan , Rui Zhang

Alice and Bob want to share a secret key and to communicate an independent message, both of which they desire to be kept secret from an eavesdropper Eve. We study this problem of secret communication and secret key generation when two…

Information Theory · Computer Science 2016-11-15 Vinod M. Prabhakaran , Krishnan Eswaran , Kannan Ramchandran

We revisit the oblivious transfer (OT) capacities of noisy channels against the passive adversary, which have been identified only for a limited class of channels. In the literature, the general construction of oblivious transfer has been…

Information Theory · Computer Science 2024-01-29 So Suda , Shun Watanabe , Haruya Yamaguchi

For the information transmission a binary symmetric channel is used. There is also another noisy binary symmetric channel (feedback channel), and the transmitter observes without delay all the outputs of the forward channel via that…

Information Theory · Computer Science 2008-08-18 Marat V. Burnashev , Hirosuke Yamamoto

In this paper, first, we investigate the model of degraded broadcast channel with side information and confidential messages. This work is from Steinberg's work on the degraded broadcast channel with causal and noncausal side information,…

Information Theory · Computer Science 2016-11-17 Bin Dai , A. J. Han Vinck , Zhuojun Zhuang , Yuan Luo

We study the following private data transfer problem: Alice has a database of files. Bob and Cathy want to access a file each from this database (which may or may not be the same file), but each of them wants to ensure that their choices of…

Information Theory · Computer Science 2016-11-18 Manoj Mishra , Tanmay Sharma , Bikash K. Dey , Vinod M. Prabhakaran

Adversarial examples, which are usually generated for specific inputs with a specific model, are ubiquitous for neural networks. In this paper we unveil a surprising property of adversarial noises when they are put together, i.e.,…

Machine Learning · Computer Science 2022-06-10 Huishuai Zhang , Da Yu , Yiping Lu , Di He

Alice and Bob are connected via a two-way channel, and Alice wants to send a message of $L$ bits to Bob. An adversary flips an arbitrary but finite number of bits, $T$, on the channel. This adversary knows our algorithm and Alice's message,…

Cryptography and Security · Computer Science 2017-07-27 Abhinav Aggarwal , Varsha Dani , Thomas Hayes , Jared Saia

Commitment is an important cryptographic primitive. It is well known that noisy channels are a promising resource to realize commitment in an information-theoretically secure manner. However, oftentimes, channel behaviour may be poorly…

Information Theory · Computer Science 2021-11-17 Amitalok J. Budkuley , Pranav Joshi , Manideep Mamindlapally , Anuj Kumar Yadav

Machine learning approaches for speech enhancement are becoming increasingly expressive, enabling ever more powerful modifications of input signals. In this paper, we demonstrate that this expressiveness introduces a vulnerability: advanced…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-01 Rostislav Makarov , Lea Schönherr , Timo Gerkmann

This paper presents channel-aware adversarial attacks against deep learning-based wireless signal classifiers. There is a transmitter that transmits signals with different modulation types. A deep neural network is used at each receiver to…

Signal Processing · Electrical Eng. & Systems 2021-12-22 Brian Kim , Yalin E. Sagduyu , Kemal Davaslioglu , Tugba Erpek , Sennur Ulukus

In this paper, we investigate the following question: Can we obtain adversarially-trained models without training on adversarial examples? Our intuition is that training a model with inherent stochasticity, i.e., optimizing the parameters…

Machine Learning · Computer Science 2023-12-15 Ayoub Arous , Andres F Lopez-Lopera , Nael Abu-Ghazaleh , Ihsen Alouani

In the setting of error-correcting codes with feedback, Alice wishes to communicate a $k$-bit message $x$ to Bob by sending a sequence of bits over a channel while noiselessly receiving feedback from Bob. It has been long known (Berlekamp,…

Information Theory · Computer Science 2022-12-14 Meghal Gupta , Venkatesan Guruswami , Rachel Yun Zhang

This paper studies a particular sensor network model which involves one single Gaussian source observed by many sensors, subject to additive independent Gaussian observation noise. Sensors communicate with the receiver over an additive…

Information Theory · Computer Science 2013-05-20 Emrah Akyol , Kenneth Rose , Tamer Basar

We study binary coordination games over graphs under log-linear learning when neighbor actions are conveyed through explicit noisy communication links. Each edge is modeled as either a binary symmetric channel (BSC) or a binary erasure…

Systems and Control · Electrical Eng. & Systems 2026-01-29 Emrah Akyol , Marcos Vasconcelos

Deep Neural Networks have been shown to be vulnerable to various kinds of adversarial perturbations. In addition to widely studied additive noise based perturbations, adversarial examples can also be created by applying a per pixel spatial…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Ayberk Aydin , Deniz Sen , Berat Tuna Karli , Oguz Hanoglu , Alptekin Temizel

In this work, message authentication over noisy channels is studied. The model developed in this paper is the authentication theory counterpart of Wyner's wiretap channel model. Two types of opponent attacks, namely impersonation attacks…

Information Theory · Computer Science 2008-02-20 Lifeng Lai , Hesham El Gamal , H. Vincent Poor

Noisy channels are a foundational resource for constructing cryptographic primitives such as string commitment and oblivious transfer. The noisy channel model has been extended to unfair noisy channels, where adversaries can influence the…

Information Theory · Computer Science 2025-10-06 Jiawei Wu , Masahito Hayashi , Marco Tomamichel

Secure communication over a wiretap channel is investigated, in which an active adversary modifies the state of the channel and the legitimate transmitter has the opportunity to sense and learn the adversary's actions. The adversary has the…

Information Theory · Computer Science 2019-11-12 Mehrdad Tahmasbi , Matthieu R. Bloch , Aylin Yener