Results 61 to 70 of about 2,162 (180)

A Lightweight Hybrid Random Number Generator With Dynamic Entropy Injection

IEEE Open Journal of Circuits and Systems
This paper presents a lightweight hybrid random number generator (HRNG), implemented and evaluated on a Field-Programmable Gate Array (FPGA). The proposed design enhances security and randomness by synergizing jitter and metastability using a feedforward
Sonia Akter, Shelby Williams, Prosen Kirtonia, Magdy Bayoumi, Kasem Khalil   +4 more
doaj   +1 more source

Space‐Time‐Coding Metasurfaces Enabling Programmable Range‐Angle‐Dependent Energy Auto‐Scanning

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
This paper presents a novel energy auto‐scanning system based on a space‐time‐coding metasurface. By applying progressive time‐delayed, time‐varying phase modulation, the system generates non‐uniform, temporally evolving electromagnetic field distributions across both angle and range.
Yuzhen Chen, Xiaoyi Wang, Guo‐Min Yang, Ya‐Qiu Jin   +3 more
wiley   +1 more source

Noninvasive Intelligent Brain‐Metasurface System for Real‐Time Electromagnetic Wave Manipulation

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
A noninvasive intelligent brain–computer interface (BCI) is integrated with a reconfigurable metasurface to establish a direct neural‐to electromagnetic transduction pathway for real time, multimodal wave control. By combining convolutional‐neural‐network‐based decoding of motor‐imagery electroencephalography (EEG) signals with threshold‐based ...
Xiao Hai, Ruiyang Shen, Xiaoyi Wang, Guo‐Min Yang   +3 more
wiley   +1 more source

Optimized Joint Relay and Antenna Selection for Enhanced Full‐Duplex Relay Networks

Engineering Reports, Volume 8, Issue 7, July 2026.
This study proposes a joint relay and antenna selection strategy for full‐duplex amplify‐and‐forward relay networks. By adaptively optimizing transmitter–receiver configurations based on channel conditions, the method reduces self‐interference, lowers outage probability, and symbol error rate, and enhances spectral efficiency, offering a scalable ...
Deepika Rani Sona, Visalakshi Annepu, Kalapraveen Bagadi, Olutayo O. Oyerinde   +3 more
wiley   +1 more source

Abnormal Behavior Detection Model Based on Fusion of RFID Identification and MEMS Vibration Sensor Signal

Engineering Reports, Volume 8, Issue 7, July 2026.
To address environmental interference in photovoltaic grounding electrode detection, this study proposes an RFID+MEMS fusion model with time–space alignment. Results show 98.1% accuracy (12.9% higher than mainstream methods), false/missed alarm rates of 0.7%/1.2%, and robustness of 0.82 under 50 dB interference.
Xianman Chen, Dong Xiao, Meng Zhou, Hongyang Chen, Yijun Zhou   +4 more
wiley   +1 more source

HPOFS: A High Performance and Secured OpenFlow Switch Architecture for FPGA

Advances in Electrical and Computer Engineering, 2019
Although Software Defined Networking offers many advantages, it suffers from many security issues due to centralized control. In this paper, we introduce HPOFS (High-Performance and Secured OpenFlow Switching Architecture) for FPGA which is not only ...
PHAM-QUOC, C., NGO, D.-M., THINH, T. N.
doaj   +1 more source

Mimic Encryption System for Network Security

IEEE Access, 2018
With the rapid development of the Internet, increasingly more attention has been paid to network security problems. A network security defense technology has become a very important research field.
Bin Li, Qinglei Zhou, Xueming Si, Jinhua Fu   +3 more
doaj   +1 more source

Patching FPGAs: The Security Implications of Bitstream Modifications [PDF]

Proceedings of the 2024 Workshop on Attacks and Solutions in Hardware Security
Field Programmable Gate Arrays (FPGAs) are known for their reprogrammability that allows for post-manufacture circuitry changes. Nowadays, they are integral to a variety of systems including high-security applications such as aerospace and military systems.
Endres Puschner, Maik Ender, Steffen Becker 0003, Christof Paar   +3 more
openaire   +2 more sources

SHA-256 Hardware Proposal for IoT Devices in the Blockchain Context

Sensors
This work proposes an implementation of the SHA-256, the most common blockchain hash algorithm, on a field-programmable gate array (FPGA) to improve processing capacity and power saving in Internet of Things (IoT) devices to solve security and privacy ...
Carlos E. B. Santos, Lucileide M. D. da Silva, Matheus F. Torquato, Sérgio N. Silva, Marcelo A. C. Fernandes   +4 more
doaj   +1 more source

A Lightweight LFSR-Based Strong Physical Unclonable Function Design on FPGA

IEEE Access, 2019
Physical unclonable function (PUF), a reliable physical security primitive, can be implemented in FPGAs and ASICs. Strong PUF is an important PUF classification that provides a large “Challenge-Response” pairs (CRP) space for device ...
Shen Hou, Yang Guo, Shaoqing Li
doaj   +1 more source