Results 131 to 140 of about 2,777 (299)

Phase-Image-Encryption-Based Elliptic Curve and Double-Random-Phase Encoding

Engineering Proceedings
In this paper, we proposed an enhanced asymmetric cryptosystem scheme for image encryption using a combination of Elliptic Curve and Fourier transformations. Our proposed encryption and decryption process is highly secure with a smaller key size compared
Arabind Kumar, Sanjay Yadav, Tarul Garg
doaj   +1 more source

Preservação por longo prazo de assinaturas digitais [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência da Computação, Florianópolis, 2011Assim como ocorre com as assinaturas manuscritas, muitas assinaturas precisam comprovar a ...
Silva, Nelson da
core  

Weaving Intelligence: Thermally Drawn Multimaterial Fibers Toward AI‐Enabled Smart Textiles

Advanced Materials, EarlyView.
Thermally drawn multimaterial fibers are rapidly advancing as intelligent structural units for next‐generation smart textiles. Integrating multimaterial architectures with neuromorphic and spiking‐neural‐network principles enables fabrics that can sense, compute, and adapt autonomously.
Vuong Dinh Trung, Jiaxiang Yi, Hieu Nguyen‐Duc, Tien Nu Hoang Lo, Weili Zhao, Chaoqun Dong, Fabien Sorin, Baris Caglar, Lei Wei, Tung Nguyen‐Dang   +9 more
wiley   +1 more source

Practical Guide to Quantum Computing for Quantum-Safe Cryptography: Asymmetric-Key Cryptography # 3

Abstract This guide explores asymmetric-key cryptography (AKC) as part of quantum-safe cryptographic practices using IBM Q. Asymmetric cryptography underpins many secure network communications today, providing mechanisms for key exchange, digital signatures, and authentication.
openaire   +2 more sources

Video blanket: Selective scene encryption and user access using hybrid key cryptography

, 2008
Various cryptographic techniques are applied extensively for the encryption and concealment of sensitive information- to ensure the security of data. Two of specific branches of cryptography are symmetric key cryptography and asymmetric key cryptography,
Co, Louise Lorraine G., Uy, Riva Loren D., See, Karol Ann O., Ching, Jensen Bryan S.   +3 more
core  

Co1/Ru Single‐Atom Alloy Catalyst for Sustainable Polypropylene Hydrogenolysis to Long‐Chain Liquid Products

Advanced Materials, EarlyView.
A titania‐supported Co1/Ru single‐atom alloy catalyst enables efficient polypropylene hydrogenolysis. Ru─Co─Ru motifs maintain Ru activity while suppressing excessive chain scission to gaseous products. Both virgin and waste plastics achieve high, environmentally and economically optimal C11+ liquid yields, supporting sustainable chemical recycling ...
Yuzhen Ge, Yimeng Jin, Alexandra Krestnikova, Sibei Zou, Antonio J. Martín, Gonzalo Guillén‐Gosálbez, Javier Pérez‐Ramírez   +6 more
wiley   +1 more source

Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum

Advanced Materials, EarlyView.
Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño, Luis A. Pérez, Carlota Ruiz De Galarreta, Théo Rouanet, M. Isabel Alonso, Agustín Mihi   +5 more
wiley   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Implementation of Elliptic Curve Cryptography i Implementation of Elliptic Curve Cryptography i Implementation of Elliptic Curve Cryptography i Implementation of Elliptic Curve Cryptography in DSP n DSP n DSP n DSP 5416 Module 5416 Module 5416 Module 5416

, 2020
Cryptography is a science of writing a secret codes for the original message. It includes two processes namely encryption and decryption. An original message is known as the plaintext, while the coded message is called the ciphertext.
S Anupriya, P R Lavanya, Mr N Karthikeyan   +2 more
core  

Flexible Pressure Sensor With Co‐Optimized Sensitivity and Linearity Based on Gradient Toroidal Microstructures

Advanced Materials Technologies, EarlyView.
A flexible piezoresistive pressure sensor with gradient toroidal CNT/PDMS microstructures is reported. The hierarchical geometry enables sequential electrode contact, achieving a sensitivity of 256.20 kPa−1 and linear response (R2 = 0.99) over 0–1000 kPa.
Rongmei Wang, Ruolin Liu, Ming Lei, Yifan Liu, Fengming Hu, Bing Ji, Chao Peng, Jianyi Luo, Bingpu Zhou   +8 more
wiley   +1 more source