Silicon Vacancies Diamond/Silk/PVA Hierarchical Physical Unclonable Functions for Multi‐Level Encryption

Advanced Science, Journal Year: 2024, Volume and Issue: 11(23)

Published: April 4, 2024

Abstract Physical unclonable functions (PUFs) have emerged as a promising encryption technology, utilizing intrinsic physical identifiers that offer enhanced security and tamper resistance. Multi‐level PUFs boost system complexity, thereby improving reliability fault tolerance. However, crosstalk‐free multi‐level remain persistent challenge. In this study, hierarchical PUF harnesses the spontaneous phase separation of silk fibroin /PVA blend random distribution silicon‐vacancy diamonds within is presented. The thermodynamic instability inherent unpredictability diamond dispersion gives rise to intricate patterns at two distinct scales, enabling time‐efficient authentication for cryptographic keys. These are complementary yet independent, inherently resistant replication damage thus affording robust proposed system. Furthermore, customized algorithms constructed: visual utilizes neural network combined structural similarity index measure, while spectral employs Hamming distance cross‐correlation bit operation. This attains high recognition rate without interscale crosstalk. Additionally, coding capacity exponentially using M‐ary encoding reinforce encryption. Hierarchical hold significant potential immediate application, offering unprecedented data protection key capabilities.

Language: Английский

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The Optical Encoder Based on Mechanoluminescent Materials and Application in Dual‐Key Encryption

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Abstract Optical information encryption is an effective security strategy currently used to protect data and prevent leakage. However, the optical technology based on mechanoluminescent (ML) materials faces challenges of single mode lack systematic dual‐key decryption strategies. In this study, a three‐layer structure encoder proposed using porous ML material as luminescent layer, quartz transparent tube with pressure‐sensing capabilities stress‐loading photodetector recognition layer. A system evolution mechanism Ba‐Gua constructed. The encoding process completed within micro darkroom fabricated 3D printing technology. This incorporates virtual position in conjunction trigram orientation, requiring two keys for correct decryption: “Combination Relative Intensity Ratio” “Virtual Position Space Code”. By linking emission spectrum information, dynamic, rewritable hybrid digital Chinese character established. offer new directions concealing confidential multidimensional applications.

Language: Английский

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Recent progress of nanomaterials-based composite hydrogel sensors for human–machine interactions

Discover Nano, Journal Year: 2025, Volume and Issue: 20(1)

Published: March 29, 2025

Abstract Hydrogel-based flexible sensors have demonstrated significant advantages in the fields of electronics and human–machine interactions (HMIs), including outstanding flexibility, high sensitivity, excellent conductivity, exceptional biocompatibility, making them ideal materials for next-generation smart HMI sensors. However, traditional hydrogel still face numerous challenges terms reliability, multifunctionality, environmental adaptability, which limit their performance complex application scenarios. Nanomaterial-based composite hydrogels significantly improve mechanical properties, multifunctionality by incorporating conductive nanomaterials, thereby driving rapid development wearable HMIs. This review systematically summarizes latest research progress on based carbon metal two-dimensional MXene provides a comprehensive analysis sensing mechanisms HMI, triboelectric nanogenerator mechanism, stress-resistance response electrophysiological acquisition mechanism. The further explores applications hydrogel-based personal electronic device control, virtual reality/augmented reality (VR/AR) game interaction, robotic control. Finally, current technical status future directions nanomaterial are summarized. We hope that this will provide valuable insights inspiration design nanocomposite applications.

Language: Английский

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Time‐Division Multiplexing Physical Unclonable Functions Based on Multicolor Phosphorescent Carbon Dots

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 13, 2025

Abstract Phosphorescent materials offer a promising approach to information encryption due their long luminescence lifetimes and high signal‐to‐noise ratios. However, fixed phosphorescent patterns are vulnerable imitation over time, limiting effectiveness in advanced encryption. Here, time‐division multiplexing physical unclonable function (TDM‐PUF) label utilizing multicolor carbon dots (CDs) is proposed that leverages variations wavelength lifetime construct time‐resolved, multidimensional cryptographic protocols. Efficient multi‐color phosphorescence CDs achieved by enhancing intersystem crossing, suppressing non‐radiative transitions through confinement effects, regulating emission spectra via energy transfer. The random spatial distribution unpredictable emissions of significantly enhance the complexity PUF system, thereby fortifying its defenses against mimicry attacks. Furthermore, this system exhibits multiple optical responses allowing correct recognition only at specified time nodes, achieving time‐resolved anti‐counterfeiting. Finally, segmenting labels based on color channels, non‐overlapping multi‐time segments achieved, enabling highly secure multiplexed study provides competitive anti‐counterfeiting inspires development novel strategies.

Language: Английский

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Multilevel, Solar-Blind, and Thermostable Physical Unclonable Functions Based on Host-Sensitized Luminescence of β-Ga2O3:Dy3+

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The luminescent properties of β-Ga 2 O 3 :Dy 3+ enable the development optical PUF tags with exceptional encoding capacity, solar-blind response, and thermal stability, making them highly effective for anti-counterfeiting encryption applications.

Language: Английский

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Macroscopically Customizable and Unclonable Hierarchical Pattern Lables with Simple Encapsulation for Multilevel Encryption and Intelligent Authentication

Published: Jan. 1, 2025

Language: Английский

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Multilevel Multimodal Physical Unclonable Functions by Laser Writing of Silicon Carbide Color Centers

Micromachines, Journal Year: 2025, Volume and Issue: 16(3), P. 329 - 329

Published: March 12, 2025

Information security serves as the cornerstone for ensuring stable development of today’s highly digitized era. As cryptographic primitives with high and robust encryption capabilities, physical unclonable functions (PUFs) are recognized one critical solutions to address information leakage issues. However, encoding PUFs often relies on inherent properties materials, which limits potential further enhancement their capacity (EC). In this study, we introduce a four-level scheme by leveraging stochastic characteristics free radical chemical reactions energy deposition in fabrication process silicon carbide (SiC) color centers. A multilevel multimodal PUF (MMPUF) strategy (ES) flexible substrates EC, low cost, simple fast readout was constructed. The spatially random distribution SiC vacancy (Vsi) color-center concentrations well offsets laser pyrolysis position along X- Y-axes four independent that ensure performance PUF, achieving 24×10×10 secure, stable, encoding. Furthermore, integration tags products through doping manufacturing process, rather than attachment, enhances practicality anti-counterfeiting system. proposed hierarchy based provides novel solution improving EC.

Language: Английский

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Macroscopically customizable and unclonable hierarchical pattern lables with simple encapsulation for multilevel encryption and intelligent authentication

Applied Materials Today, Journal Year: 2025, Volume and Issue: 44, P. 102729 - 102729

Published: April 19, 2025

Language: Английский

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Traceable Optical Physical Unclonable Functions Based on Germanium Vacancy in Diamonds

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(33), P. 44328 - 44339

Published: Aug. 6, 2024

Physical unclonable functions (PUFs) have emerged as an unprecedented solution for modern information security and anticounterfeiting by virtue of their inherent nature derived from distinctive, randomly generated physical patterns that defy replication. However, the creation traceable optical PUF tags remains a formidable challenge. Here, we demonstrate system whose unclonability arises random distribution diamonds intensity narrow emission germanium vacancies (GeV) within diamonds. Tamper-resistant labels can be manufactured on diverse intricate structural surfaces blending diamond particles into polydimethylsiloxane (PDMS) strategically depositing them onto surface objects. The resulting codes exhibit essentially perfect uniformity, uniqueness, reproducibility, substantial encoding capacity, making applicable private key to fulfill customization demands circulating commodities. Through integration digitized "challenge-response" protocol, highly secure established, which is seamlessly compatible with contemporary digital technology. Thus, GeV-PUF holds significant promise applications in data blockchain anticounterfeiting, providing robust adaptive solutions address dynamic these domains.

Language: Английский

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Robust and Versatile Biodegradable Unclonable Anti‐Counterfeiting Labels with Multi‐Mode Optical Encoding Using Protein‐Mediated Luminescent Calcite Signatures

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 2, 2024

Abstract Physical unclonable functions (PUFs) are emerging as a cutting‐edge technology for enhancing information security by providing robust authentication and non‐reproducible cryptographic keys. Incorporating renewable biocompatible materials into PUFs ensures safety handling, compatibility with biological systems, reduced environmental impact. However, existing PUF platforms struggle to balance high encoding capacity, diversified encryption signatures, versatile functionalities sustainability biocompatibility. Here, all‐biomaterial‐based anti‐counterfeiting labels featuring multi‐mode encoding, multi‐level keys, multiple operations developed imprinting biomimetic‐grown calcites on silk protein films. In this label, the inherent non‐clonability comes from randomized characteristics of calcites, mediated during crystal growth. The successful embedding photoluminescent molecules calcite lattices, assisted protein, allows resulting platform utilize fluorescence patterns alongside birefringence high‐capacity encoding. This design facilitates easy rapid through Hamming distance convolutional neural networks using standard cameras portable microscopes. Moreover, angle‐dependent polarization enable key generation, while multi‐spectral signals offer multi‐channel combine biodegradability, green manufacture, authentication, high‐level complexity, low cost, robustness, patternability, versatility, offering practical high‐security solution combat counterfeiting across various applications.

Language: Английский

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