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We revisit the problem of secret key agreement using interactive public communication for two parties and propose a new secret key agreement protocol. The protocol attains the secret key capacity for general observations and attains the…

Information Theory · Computer Science 2016-03-11 Masahito Hayashi , Himanshu Tyagi , Shun Watanabe

Integrated sensing and communication (ISAC) combines sensing and communication within a shared system framework by using the same transmitted signal for both objectives. ISAC can improve the efficiency of spectrum and hardware use but also…

Information Theory · Computer Science 2026-05-12 Truman Welling , Onur Günlü , Aylin Yener

This paper presents a star-of-star topology for internet-of-things (IoT) networks using mega low-Earth-orbit constellations. The proposed topology enables IoT users to broadcast their sensed data to multiple satellites simultaneously over a…

Signal Processing · Electrical Eng. & Systems 2023-09-06 Ayush Kumar Dwivedi , Sachin Chaudhari , Neeraj Varshney , Pramod K. Varshney

There are often situations where two remote users each have data, and wish to (i) verify the equality of their data, and (ii) whenever a discrepancy is found afterwards, determine which of the two modified his data. The most common example…

Information Theory · Computer Science 2023-10-31 Go Kato , Mikio Fujiwara , Toyohiro Tsurumaru

Two parties observing correlated random variables seek to run an interactive communication protocol. How many bits must they exchange to simulate the protocol, namely to produce a view with a joint distribution within a fixed statistical…

Information Theory · Computer Science 2016-02-01 Himanshu Tyagi , Shaileshh Venkatakrishnan , Pramod Viswanath , Shun Watanabe

Integrated sensing and communication (ISAC) systems provide significant enhancements in performance and resource efficiency compared to individual sensing and communication systems, primarily attributed to the collaborative use of wireless…

Information Theory · Computer Science 2025-07-16 Jiayu Liu , Kai Wan , Xinping Yi , Robert Caiming Qiu , Giuseppe Caire

Due to the increase in natural disasters in the past years, Disaster Response Organizations (DROs) are faced with the challenge of coping with more and larger operations. Currently appointed Information and Communications Technology (ICT)…

Computers and Society · Computer Science 2020-05-12 Milan Stute , Max Maass , Tom Schons , Marc-André Kaufhold , Christian Reuter , Matthias Hollick

The dense concentration of low-altitude, slow-speed, and small-size targets in the complex low-altitude environment poses significant security challenges, including failures in continuous wide-area sensing and ambiguous target intent, which…

Systems and Control · Electrical Eng. & Systems 2026-01-23 Ruixing Ren

For more than 60 years, the predominant SETI search paradigm has entailed the observation of stars in an effort to detect alien electromagnetic signals that deliberately target Earth. However, this strategy is fraught with challenges when…

Popular Physics · Physics 2023-08-02 John Gertz

The Echo protocol tries to do secure location verification using physical limits imposed by the speeds of light and sound. While the protocol is able to guarantee that a certain object is within a certain region, it cannot ensure the…

Cryptography and Security · Computer Science 2007-05-23 Yoo Chung , Dongman Lee

This paper proposes the Intra Trustcenter Protocol (ITP), a flexible and secure management protocol for communication between arbitrary trustcenter components. Unlike other existing protocols (like PKCS#7, CMP or XKMS) ITP focuses on the…

Cryptography and Security · Computer Science 2009-09-29 V. Karatsiolis , M. Lippert , A. Wiesmaier , A. Pitaev , M. Ruppert , J. Buchmann

In this paper I describe how miscommunication problems are dealt with in the spoken language system DIALOGOS. The dialogue module of the system exploits dialogic expectations in a twofold way: to model what future user utterance might be…

cmp-lg · Computer Science 2007-05-23 Morena Danieli

We introduce what --if some kind of group action exists-- is a truly (information theoretically) safe cryptographic communication system: a protocol which provides \emph{zero} information to any passive adversary having full access to the…

Cryptography and Security · Computer Science 2007-05-23 Pedro Fortuny Ayuso

A novel private communication framework is proposed where privacy is induced by transmitting over a channel instances of linear inverse problems that are identifiable to the legitimate receiver but unidentifiable to an eavesdropper. The gap…

Information Theory · Computer Science 2024-07-24 Maxime Ferreira Da Costa , Jianxiu Li , Urbashi Mitra

Physical layer security offers an efficient means to decrease the risk of confidential information leakage through wiretap links. In this paper, we address the physical-layer security in a cooperative wireless subnetwork that includes a…

Networking and Internet Architecture · Computer Science 2019-10-21 Saeed Vahidian , Sajad Hatamnia , Benoit Champagne

Wireless communication provides a wide coverage at the cost of exposing information to unintended users. As an information-theoretic paradigm, secrecy rate derives bounds for secure transmission when the channel to the eavesdropper is…

Information Theory · Computer Science 2016-11-17 Ashkan Kalantari , Mojtaba Soltanalian , Sina Maleki , Symeon Chatzinotas , Björn Ottersten

Interactive communication (IC), i.e., the reciprocal exchange of information between two or more interactive partners, is a fundamental part of human nature. As such, it has been studied across multiple scientific disciplines with different…

We combine interactive zero-knowledge protocols and weak physical layer randomness properties to construct a protocol which allows bootstrapping an IT-secure and PF-secure channel from a memorizable shared secret. The protocol also…

Cryptography and Security · Computer Science 2013-06-27 Oleksandr Nikitin

We consider a setting of non-cooperative communication where a receiver wants to recover randomly generated sequences of symbols that are observed by a strategic sender. The sender aims to maximize an average utility that may not align with…

Information Theory · Computer Science 2025-03-03 Anuj S. Vora , Ankur A. Kulkarni

Modern satellite systems face increasing operational risks from jamming, cyberattacks, and electromagnetic disruptions in contested space environments. Traditional redundancy strategies often fall short against such dynamic and multi-vector…

Systems and Control · Electrical Eng. & Systems 2026-04-07 Anouar Boumeftah , Sarah McKenzie-Picot , Peter Klimas , Gunes Karabulut Kurt