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We investigate the problem of reliable communication between two legitimate parties over deletion channels under an active eavesdropping (aka jamming) adversarial model. To this goal, we develop a theoretical framework based on…

Machine Learning · Statistics 2018-04-12 Shahab Asoodeh , Yi Huang , Ishanu Chattopadhyay

Mobile collaborative learning (MCL) is extensively recognized field all over the world. It demonstrates the cerebral approach combining the several technology to handle the problem of learning. MCL motivates the social and educational…

Cryptography and Security · Computer Science 2013-09-19 Abdul Razaque , Khald. M. Elleithy

The need for secrecy and security is essential in communication. Secret sharing is a conventional protocol to distribute a secret message to a group of parties, who cannot access it individually but need to cooperate in order to decode it.…

Quantum Physics · Physics 2017-01-16 Ioannis Kogias , Yu Xiang , Qiongyi He , Gerardo Adesso

In this paper, a novel covert semantic communication framework is investigated. Within this framework, a server extracts and transmits the semantic information, i.e., the meaning of image data, to a user over several time slots. An attacker…

Artificial Intelligence · Computer Science 2025-08-12 Wenjing Zhang , Ye Hu , Tao Luo , Zhilong Zhang , Mingzhe Chen

The increasing sophistication of encryption-based ransomware has demanded innovative approaches to detection and mitigation, prompting the development of a hierarchical framework grounded in probabilistic cryptographic analysis. By focusing…

Cryptography and Security · Computer Science 2025-08-11 Kevin Pekepok , Persephone Kirkwood , Esme Christopolous , Florence Braithwaite , Oliver Nightingale

Cloud computing has become indispensable in today's computer landscape. The flexibility it offers for customers as well as for providers has become a crucial factor for large parts of the computer industry. Virtualization is the key…

Cryptography and Security · Computer Science 2017-07-27 Felicitas Hetzelt , Robert Buhren

Malicious server (MS) attacks have enabled the scaling of data stealing in federated learning to large batch sizes and secure aggregation, settings previously considered private. However, many concerns regarding the client-side…

Cryptography and Security · Computer Science 2024-04-16 Kostadin Garov , Dimitar I. Dimitrov , Nikola Jovanović , Martin Vechev

This paper studies the problem of reasoning about flow security properties in virtualised computing networks with mobility from perspective of formal language. We propose a distributed process algebra CSP_{4v} with security labelled…

Cryptography and Security · Computer Science 2020-04-14 Chunyan Mu

Propose a new cryptographic information concept. It allows : - to create absolutely algorithmic unbreakable ciphers for communication through open digital channels; - to create new code-breaking methods. They will be the most efficient…

Information Theory · Computer Science 2010-02-25 Vadim Nedzvetski

To provide data and code confidentiality and reduce the risk of information leak from memory or memory bus, computing systems are enhanced with encryption and decryption engine. Despite massive efforts in designing hardware enhancements for…

Cryptography and Security · Computer Science 2022-08-17 Jingyao Zhang , Hoda Naghibijouybari , Elaheh Sadredini

Memory disclosure attacks play an important role in the exploitation of memory corruption vulnerabilities. By analyzing recent research, we observe that bypasses of defensive solutions that enforce control-flow integrity or attempt to…

Cryptography and Security · Computer Science 2020-07-08 Robert Gawlik , Philipp Koppe , Benjamin Kollenda , Andre Pawlowski , Behrad Garmany , Thorsten Holz

It allows any two parties that are either both on the same network or connected via the internet to transfer the contents of a file based on a particular sequence of words. Peer discovery happens via multicast DNS if both peers are on the…

Networking and Internet Architecture · Computer Science 2023-05-04 Dennis Trautwein , Moritz Schubotz , Bela Gipp

A growing number of devices and services collect detailed time series data that is stored in the cloud. Protecting the confidentiality of this vast and continuously generated data is an acute need for many applications in this space. At the…

Cryptography and Security · Computer Science 2020-03-16 Lukas Burkhalter , Anwar Hithnawi , Alexander Viand , Hossein Shafagh , Sylvia Ratnasamy

The primary objective of an anonymity tool is to protect the anonymity of its users through the implementation of strong encryption and obfuscation techniques. As a result, it becomes very difficult to monitor and identify users activities…

Cryptography and Security · Computer Science 2023-11-29 Javeriah Saleem , Rafiqul Islam , Zahidul Islam

We present a secure network communication system that operated with decoy-state quantum cryptography in a real-world application scenario. The full key exchange and application protocols were performed in real time among three nodes, in…

To circumvent the unbridled and ever-encroaching surveillance and censorship in cyberspace, steganography has garnered attention for its ability to hide private information in innocent-looking carriers. Current provably secure steganography…

Cryptography and Security · Computer Science 2024-11-26 Minhao Bai , Jinshuai Yang , Kaiyi Pang , Xin Xu , Zhen Yang , Yongfeng Huang

Ethereum smart contracts are public, immutable and distributed and, as such, they are prone to vulnerabilities sourcing from programming mistakes of developers. This paper presents SAFEVM, a verification tool for Ethereum smart contracts…

Programming Languages · Computer Science 2019-06-13 Elvira Albert , Jesús Correas , Pablo Gordillo , Guillermo Román-Díez , Albert Rubio

A quantum protocol is described which enables a user to send sealed messages and that allows for the detection of active eavesdroppers. We examine a class of eavesdropping strategies, those that make use of quantum operations, and we…

Quantum Physics · Physics 2009-11-13 Paul A Lopata , Thomas B Bahder

There has been much interest in quantum key distribution. Experimentally, quantum key distribution over 150 km of commercial Telecom fibers has been successfully performed. The crucial issue in quantum key distribution is its security.…

Quantum Physics · Physics 2009-11-10 Hoi-Kwong Lo , Xiongfeng Ma , Kai Chen

Semantic communications seeks to transfer information from a source while conveying a desired meaning to its destination. We model the transmitter-receiver functionalities as an autoencoder followed by a task classifier that evaluates the…

Cryptography and Security · Computer Science 2022-12-21 Yalin E. Sagduyu , Tugba Erpek , Sennur Ulukus , Aylin Yener