Results 51 to 60 of about 83,946 (258)

Hidden and Uncontrolled - On the Emergence of Network Steganographic Threats

, 2014
Network steganography is the art of hiding secret information within innocent network transmissions. Recent findings indicate that novel malware is increasingly using network steganography.
Caviglione, Luca, Mazurczyk, Wojciech, Meier, Michael, Wendzel, Steffen   +3 more
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Entanglement Assisted LPI and Covert Communications With SLM-Based Beam Steering Over Turbulent Optical Channels

IEEE Access
In secure communications, the primary focus is on safeguarding the content of the message. In contrast, low probability of intercept (LPI) communications prioritize the privacy of the communication process itself.
Ivan B. Djordjevic, Ignacio A. Rojas
doaj   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Detecting hidden communication threats in cloud systems using advanced pattern and threat propagation analysis

Journal of Cloud Computing: Advances, Systems and Applications
Cloud environments enable scalable multi-tenant computing but introduce security risks like covert channels, making their detection and classification essential for maintaining cloud security.
Gavini Sreelatha, Tan Kuan Tak, Rajkumar Kalimuthu, Pravin R. Kshirsagar, Balajee Maram, T. Venkatakrishnamoorthy   +5 more
doaj   +1 more source

Covert channel detection using Information Theory

, 2010
This paper presents an information theory based detection framework for covert channels. We first show that the usual notion of interference does not characterize the notion of deliberate information flow of covert channels.
Hélouët, Loïc, Roumy, Aline
core   +3 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Optimal Covert Communication Technology

, 2022
Due to advancement in hacking/reverse engineering tools, threat against transfer of sensitive data or highly classified information is always at risk of being intercepted by an attacker. Covert communication outwit this malicious breach of privacy act better than cryptography as it camouflage secret information inside another innocent looking ...
openaire   +2 more sources

Behavioral Mimicry Covert Communication [PDF]

, 2012
In this paper, the use of structural behavior of communication protocols (e.g., CSMA) in designing new covert channels is investigated. In this way, the covert transmitter adopts the communication protocol architecture to control its overt traffic flow yet with different parameters that give it enough freedom to embed the covert message in its overt ...
Seyed Ali Ahmadzadeh, Gordon Agnew
openaire   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source