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The kidney exchange problem (KEP) seeks to find possible exchanges among pairs of patients and their incompatible kidney donors while meeting specific optimization criteria such as maximizing the overall number of possible transplants.…

Cryptography and Security · Computer Science 2024-02-02 Malte Breuer , Ulrike Meyer , Susanne Wetzel

We proposed a new physical layer technique that can enhance the security of cooperative relay communications. The proposed approach modifies the decoded message at the relay according to the unique channel state between the relay and the…

Information Theory · Computer Science 2014-03-27 Sang Wu Kim

Blockchains and other public ledger structures promise a new way to create globally consistent event logs and other records. We make use of this consistency property to detect and prevent man-in-the-middle attacks in a key exchange such as…

Cryptography and Security · Computer Science 2017-08-14 Thanh Bui , Tuomas Aura

Talek is a private group messaging system that sends messages through potentially untrustworthy servers, while hiding both data content and the communication patterns among its users. Talek explores a new point in the design space of…

Cryptography and Security · Computer Science 2020-12-17 Raymond Cheng , William Scott , Elisaweta Masserova , Irene Zhang , Vipul Goyal , Thomas Anderson , Arvind Krishnamurthy , Bryan Parno

The theoretically proven security of quantum key distribution (QKD) could revolutionise how information exchange is protected in the future. Several field tests of QKD have proven it to be a reliable technology for cryptographic key…

In the era of social media and messaging applications, people are becoming increasingly aware of data privacy issues associated with such apps. Major messaging applications are moving towards end-to-end encryption (E2EE) to give their users…

Cryptography and Security · Computer Science 2021-08-02 Raman Singh , Ark Nandan Singh Chauhan , Hitesh Tewari

The advent of quantum computing threatens classical cryptographic mechanisms, demanding new strategies for securing communication networks. Since real-world networks cannot be fully Quantum Key Distribution (QKD)-enabled due to…

Cryptography and Security · Computer Science 2026-02-24 Ane Sanz , Eire Salegi , Asier Atutxa , David Franco , Jasone Astorga , Eduardo Jacob

The advent of distributed computing systems will offer great flexibility for application workloads, while also imposing more attention to security, where the future advent and adoption of quantum technology can introduce new security…

Networking and Internet Architecture · Computer Science 2024-05-28 Claudio Cicconetti , Dario Sabella , Pietro Noviello , Gennaro Davide Paduanelli

Security is an increasingly fundamental requirement in Software-Defined Networking (SDN). However, the pace of adoption of secure mechanisms has been slow, which we estimate to be a consequence of the performance overhead of traditional…

Networking and Internet Architecture · Computer Science 2017-11-03 Diego Kreutz , Jiangshan Yu , Paulo Esteves-Verissimo , Catia Magalhaes , Fernando M. V. Ramos

The security of communication in everyday life becomes very important. On the other hand, all existing encryption protocols require from user additional knowledge end resources. In this paper we discuss the problem of public key…

Cryptography and Security · Computer Science 2015-03-12 Krzysztof Podlaski , Artur Hłobaż , Piotr Milczarski

Cooperative communication can improve communication quality in wireless communication networks through strategic relay selection. However, wireless cooperative communication networks are vulnerable to the attacks initiated on relays.…

Networking and Internet Architecture · Computer Science 2016-10-04 D. Zheng , S. Hu

This paper investigates the use of dynamical chaotic systems to encrypt and exchange images between different devices. Two devices were used to simulate the Cubic Map, having the same set of initial conditions, to generate an encryption…

Cryptography and Security · Computer Science 2019-10-15 T. A. Santos , E. P. Magalhaes , D. R. Fiorio , E. G. Nepomuceno

The advancement of low-altitude intelligent networks enables unmanned aerial vehicle (UAV) interconnection via flying ad-hoc networks (FANETs), offering flexibility and decentralized coordination. However, resource constraints, dynamic…

Cryptography and Security · Computer Science 2025-09-23 Yao Wu , Ziye Jia , Qihui Wu , Yian Zhu

Increasing privacy and security concerns in intelligence-native 6G networks require quantum key distribution-secured semantic information communication (QKD-SIC). In QKD-SIC systems, edge devices connected via quantum channels can…

Cryptography and Security · Computer Science 2022-09-27 Rakpong Kaewpuang , Minrui Xu , Wei Yang Bryan Lim , Dusit Niyato , Han Yu , Jiawen Kang , Xuemin Sherman Shen

Cooperative Adaptive Cruise Control (CACC) is a vehicular technology that allows groups of vehicles on the highway to form in closely-coupled automated platoons to increase highway capacity and safety, and decrease fuel consumption and CO2…

Systems and Control · Electrical Eng. & Systems 2021-06-22 Tianci Yang , Carlos Murguia , Dragan Nešić , Chen Lv

This paper investigates the information-theoretic decentralized secure aggregation (DSA) problem under practical groupwise secret keys and collusion resilience. In DSA, $K$ users are interconnected through error-free broadcast channels.…

Information Theory · Computer Science 2025-11-19 Zhou Li , Xiang Zhang , Yizhou Zhao , Haiqiang Chen , Jihao Fan , Giuseppe Caire

While many cloud storage systems allow users to protect their data by making use of encryption, only few support collaborative editing on that data. A major challenge for enabling such collaboration is the need to enforce cryptographic…

Cryptography and Security · Computer Science 2018-07-30 Stefan Contiu , Rafael Pires , Sébastien Vaucher , Marcelo Pasin , Pascal Felber , Laurent Réveillère

Quantum key distribution (QKD) has often been hailed as a reliable technology for secure communication in cyber-physical microgrids. Even though unauthorized key measurements are not possible in QKD, attempts to read them can disturb…

Cryptography and Security · Computer Science 2024-05-21 Suman Rath , Neel Kanth Kundu , Subham Sahoo

This article bridges the gap between two topics used in sharing an encryption key: (i) Key Consolidation, i.e., extracting two identical strings of bits from two information sources with similarities (common randomness). (ii) Quantum-safe…

Cryptography and Security · Computer Science 2024-01-31 Amir K. Khandani

A notion of quantum conference is introduced in analogy with the usual notion of a conference that happens frequently in today's world. Quantum conference is defined as a multiparty secure communication task that allows each party to…

Quantum Physics · Physics 2022-06-10 Anindita Banerjee , Kishore Thapliyal , Chitra Shukla , Anirban Pathak