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SCARE and power attack on AES-like block ciphers with secret S-box

Frontiers of Computer science 2022年第4期16卷 161-172页

作者： Xin Liu An Wang Liehuang Zhu Yaoling Ding Zeyuan Lyu Zongyue Wang School of Computer Science&Technology Beijing Institute of TechnologyBeijing100081China State Key Laboratory of Cryptology P.O.Box 5159Beijing100878China

Despite Kerckhoff’s principle,there are secret ciphers with unknown components for diplomatic or military *** side-channel analysis of reverse engineering(SCARE)is developed for analyzing secret *** the side-channel leakage,SCARE attacks enable the recovery of some secret parts of a cryptosystem,e.g.,the substitution box ***,based on idealized leakage assumption,most of these attacks have a few limitations on prior knowledge or *** this paper,we focus on AES-like block ciphers with a secret S-box and demonstrate an attack which recovers both the secret key and the secret *** the one hand,the key is recovered under profiled circumstance by leakage analysis and collision *** the other hand,the SCARE attack is based on mathematical *** relies on Hamming weight of MixColumns intermediate results in the first round,which can restore the secret *** are performed on real power traces from a software implementation of AES-like block ***,we evaluate the soundness and efficiency of our method by simulations and compare with previous *** method has more advantages in intermediate results location and the required number of *** simulated traces with gaussian noise,our method requires 100000 traces to fully restore the secret S-box,while the previous method requires nearly 300000 traces to restore S-box.

关键词： cryptography SCARE side-channel analysis AES secret S-box

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Retention mechanism of calcium ferrite and compositions of ash on selenium during chemical looping gasification

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Particuology 2023年第8期79卷 143-152页

作者： Ziheng Han Huifen Kang Nini Yuan Xintong Guo Jingjing Ma Qingjie Guo State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical EngineeringNingxia UniversityYinchuan750021China Key Laboratory of Clean Chemical Engineering in Universities of Shandong College of Chemical EngineeringQingdao University of Science&TechnologyQingdao266042China

Selenium pollution by coal utilization is of increasing ***-iron(Ca-Fe)oxygen carriers(OCs)and alkali metal ions have strong inhibitory effects on selenium,which can reduce the emissions of selenium *** retention mechanisms of selenium by Fe_(2)O_(3),CaFe_(2)O_(4),Ca_(2)Fe_(2)O_(5) and bottom ash are investigated during chemical looping gasification(CLG).Iron-based OC can oxidize H_(2)Se(g)to SeO_(2)(g);furthermore,lattice oxygen is released by Fe_(2)O_(3),contributing to the formation of an Fe-O-Se structure to retain selenium and form *** calcium ferrite is poorly oxidizing,it cannot oxidize H_(2)Se(g),but the CaO produced when OCs are reduced can react with H_(2)Se(g)to form CaSe(s),and this process can be promoted by H_(2)S(g).The best retention rates reached 32.301%when Ca_(2)Fe_(2)O_(5) was *** the cyclic experiment,the selenium retention of the bottom ash gradually *** metal ions in bottom ash are the main factor in retaining ***^(2+) and Mg^(2+) do not easily vaporize due to their high melting points;therefore,their selenium retention is significantly better than that of K^(+) and Na^(+).This research provided a new idea for the removal of selenium by using OCs and bottom ash par-ticles during CLG.

关键词： Selenium Chemical looping gasification Oxygen carrier Retention mechanism Ashcomposition

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Carbon dots confined in 3D polymer network: Producing robust room temperature phosphorescence with tunable lifetimes

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Chinese Chemical Letters 2022年第2期33卷 783-787页

作者： Yingxiang Zhai Ping Wang Xinyue Zhang Shouxin Liu Jian Li Zhijun Chen Shujun Li Key Laboratory of Bio-based Material Science&Technology Ministry of EducationNortheast Forestry UniversityHarbin 150040China

Room temperature phosphorescence(RTP) is important in both organic electronics and encryption. Despite rapid advances, a universal approach to robust and tunable RTP materials based on amorphous polymers remains a formidable challenge. Here, we present a strategy that uses three-dimensional(3 D)confinement of carbon dots in a polymer network to achieve ultra-long lifetime phosphorescence. The RTP of the as-obtained materials was not quenched in different polar organic solvents and the lifetime of the RTP was easily tuned by adjusting the amount of crosslinking or varying the drying temperature of the 3 D molecular network. As a demonstration of potential application, as-obtained RTP materials were successfully used to prepare RTP fibres for flexible textiles. As well as bringing to light a fundamental principle for the construction of polymer materials with RTP, we have endowed traditional carbon dots and polymers with fresh features that will expand potential applications.

关键词： Carbon dots 3D polymer network Room temperature phosphorescence Tunable lifetime Generality

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Volatile profile and multivariant analysis of Sanhuang chicken breast in combination with Chinese 5-spice blend and garam masala

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Food science and Human Wellness 2023年第1期12卷 57-68页

作者： Rani Andaleeb Danni Zhang Shui Jiang Yin Zhang Yuan Liu Department of Food Science&Technology School of Agriculture and BiologyShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Meat Processing of Sichuan Chengdu UniversityChengdu 610106China

Sanhuang chicken is a popular native breed in China and well-known for delicious *** could enhance the chicken meat flavour and work well in *** 5-spice blend(CS)and garam masala(GM)are routinely using spices in China and Pakistan,*** flavour profiles of Sanhuang chicken breast(CB)and its blends with CS and GM were obtained by electronic nose(E-nose),solid-phase microextraction gas chromatography-mass spectrometry(SPME GC-MS)and GC-ion mobility spectrometry(GC-IMS).Principal component analysis(PCA)efficiently discriminated the aroma profiles of three chicken *** GC-chromatographs revealed the significant aroma alterations of chicken breast meat after marination with *** were the major contributors of chicken aroma,while most of the aromatic hydrocarbons were generated by *** all chicken key-compounds produced by oxidation reaction were either reduced or eliminated by marination,showing the antioxidation capacity of spices leading to meat ***-IMS is not only a rapid and comprehensive detection method,but also proved to be more sensitive than *** substantial role of both traditional spices in enhancing flavour quality of chicken meat,and their exposure as functional ingredients in Chinese and Pakistan cuisines could lead to the cross-cultural meat trade opportunities.

关键词： Chicken breast Chinese 5-spice blend Garam masala Volatile compounds Qualitative techniques Multivariant analysis

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Diameter Refnement of Electrospun Nanofbers:From Mechanism,Strategies to Applications

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Advanced Fiber Materials 2022年第2期4卷 145-161页

作者： Xian Wen Jian Xiong Sailing Lei Liming Wang Xiaohong Qin Key Laboratory of Textile Science and Technology of Ministry of Education College of TextilesDonghua UniversityShanghai 201620China

Electrospinning has drawn wide attention for its powerful capacity to produce ultrafne nanofbers(UNFs)from various *** UNFs demonstrated signifcantly enhanced performance,such as ultra-high surface area,more porosity and stronger mechanical ***,we comprehensively review their basic principles,state-of-the-art methods and preponderant *** begin with a brief introduction to the refnement theory of polymer jets,followed by discussion of factors afecting fber *** then discuss the refning strategies from the aspects of solution properties,spinning parameters,auxiliary force and ***,we highlight the most relevant and recent applications associated with the remarkable features of UNFs,including fltration materials,supercapacitors,biomedical materials and other *** the end,we ofer perspectives on the challenges,opportunities,and new directions for future development of electrospun UNFs.

关键词： Electrospinning Diameter refnement Ultrafne nanofbers Principles Applications

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A review on electrocatalytic CO_(2) conversion via C-C and C-N coupling

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Carbon Energy 2024年第2期6卷 167-194页

作者： Zhuangzhi Zhang Sijun Li Zheng Zhang Zhou Chen Hua Wang Xianguang Meng Wenquan Cui Xiwei Qi Jiacheng Wang Hebei Provincial Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and TechnologyTangshanChina Key Laboratory of Luminescence Analysis and Molecular Sensing Ministry of EducationCollege of Chemistry and Chemical EngineeringSouthwest UniversityChongqingChina State Key Laboratory of New Textile Materials and Advanced Processing Technologies Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and FinishingCollege of Chemistry and Chemical EngineeringWuhan Textile UniversityWuhanChina College of Materials Xiamen UniversityXiamenChina Hebei Iron and Steel Laboratory TangshanChina Hebei Key Laboratory for Environment Photocatalytic and Electrocatalytic Materials College of Chemical EngineeringNorth China University of Science and TechnologyTangshanChina College of Metallurgy and Energy North China University of Science and TechnologyTangshanChina State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghaiChina Institute of Electrochemistry School of Materials Science and EngineeringTaizhou UniversityTaizhouChina

Electrochemical C-C and C-N coupling reactions with the conversion of abundant and inexpensive small molecules,such as CO_(2) and nitrogencontaining species,are considered a promising route for increasing the value of CO_(2) reduction *** development of high-performance catalysts is the key to the both electrocatalytic *** this review,we present a systematic summary of the reaction systems for electrocatalytic CO_(2) reduction,along with the coupling mechanisms of C-C and C-N bonds over outstanding electrocatalytic materials recently *** key intermediate species and reaction pathways related to the coupling as well as the catalyst-structure relationship will be also discussed,aiming to provide insights and guidance for designing efficient CO_(2) reduction systems.

关键词： C-C coupling C-N coupling CO_(2) conversion electrocatalysis urea synthesis

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Royal jelly modulates serum lipid metabolism and improves brain lipid profiles in natural aging mice

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Food science and Human Wellness 2025年第3期14卷 1092-1105页

作者： Lili Chen Li Zhao Gaowei Zhang Zhuozhen Li Huihui Ming Liangliang Qu Fangjian Ning Liping Luo College of Food and Health Beijing Technology and Business UniversityBeijing 100048China School of Life Science Jiangxi Science&Technology Normal UniversityNanchang 330013China School of Life Sciences Nanchang UniversityNanchang 330031China Key Laboratory of Geriatric Nutrition and Health Ministry of Education Beijing Technology and Business UniversityBeijing 100048China

Royal jelly(RJ)is rich in various nutrients with multiple health-promoting *** study aims to evaluate whether RJ can modulate related metabolite in the natural aging *** C57BL/6J mice drank RJ solution daily for 9 *** of serum lipids and pathological analysis exhibited that triglycerides,serum cholesterol,and low-density lipoprotein cholesterol were decreased by 31.15%,9.96%,and 22.58%,respectively,the morphology of brain nerve cells was also effectively recovered after RJ *** analysis showed that RJ could improve the levels of different kinds of lipids in aging mice brain,especially by increasing the content of antioxidant ether ester,and that the ratio of monounsaturated fatty acid to polyunsaturated fatty acid was up by 23.46%,which could alleviate oxidative ***,the metabolism of glycerol phospholipids,glycerols,and fatty acids in aging mice could be regulated by *** intervention can effectively improve lipid metabolism disorders caused by aging.

关键词： Royal jelly Natural aging Brain Lipidomic Fatty acids

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Design of a photonic crystal fiber polarization beam splitter with simple structure and ultra-wide bandwidth

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Chinese Physics B 2023年第10期32卷 476-482页

作者：魏云鹏苑金辉屈玉玮邱石周娴颜玢玢王葵如桑新柱余重秀 State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and TelecommunicationsBeijing 100876China Research Center for Convergence Networks and Ubiquitous Services University of Science&Technology BeijingBeijing 100083China

A novel polarization beam splitter(PBS)based on dual-core photonic crystal fiber(DC-PCF)is proposed in this *** proposed DC-PCF PBS contains two kinds of lattices and three kinds of air holes to form the asymmetrical elliptic dual-core *** using the full-vector finite element method,the propagation characteristics of the proposed DC-PCF PBS are *** simulation results show that the bandwidth of the proposed DC-PCF PBS can reach to 340 nm,which covers the S+C+L+U communication bands,the shortest splitting length is 1.97 mm,and the maximum extinction ratio appears near wavelength 1550 ***,the insertion loss of the proposed DC-PCF PBS is very *** is believed that the proposed DC-PCF PBS has important applications in the field of all-optical communication and network.

关键词： dual-core photonic crystal fiber polarization beam splitter extinction ratio bandwidth

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Hierarchical On-Surface Synthesis of Two-Dimensional Networks via Multipoint S···N and S···H Bonding

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CCS Chemistry 2025年第1期7卷 170-179页

作者： Chen-Hui Shu Li-Xia Kang Shan-shan Wang Yan He Ruo-Xi Zhang Xuelei Su Ping Yu Xingguang Li Pei-Nian Liu Shanghai Key Laboratory of Functional Materials Chemistry Key Laboratory for Advanced MaterialsState Key Laboratory of Chemical EngineeringSchool of Chemistry and Molecular EngineeringEast China University of Science&TechnologyShanghai 200237 Center for Topological Functional Materials Henan Key Laboratory of Photovoltaic MaterialsHenan UniversityKaifeng 475004 School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210 State Key Laboratory of Natural Medicines School of PharmacyChina Pharmaceutical UniversityNanjing 210009

Although electrostatic bonding between chalcogen(Ch)atoms(O,S,Se,and Te)and nitrogen(N)has emerged as a powerful driving force in the fabrication of supramolecular structures;this noncovalent bond has not yet been used to link polymers to form *** this study,we took advantage of additive enthalpy in forming multipoint noncovalent bonds to construct a two-dimensional(2D)network via the hierarchical on-surface synthesis of linear polymer chains,followed by multipoint S···N and S···H *** 4,7-dibromobenzo[c][1,2,5]thiadiazole was used,only short oligomers with embedded bromine atoms and cross-linked byproducts were formed on Ag(111)or Au(111)surfaces after multiple annealing procedures,and no 2D network was *** changing the precursor to a similar iodinesubstituted molecule,long linear polymers were generated and assembled with iodine atoms on Au(111)after annealing at 523 *** annealing at 603 K,iodine atoms were desorbed and polymer chains were assembled via multipoint noncovalent *** 2D network remained intact after annealing at 653 K,demonstrating its high *** multipoint noncovalent bonds were investigated by the combination of scanning tunneling microscopy,noncontact atomic force microscopy,and density functional theory calculations,which revealed that S···N and S···H bonding were the driving forces to construct thermostable and orderly 2D networks.

关键词： two-dimensional networks surfaces chalcogen atoms multipoint noncovalent bonds scanning tunneling microscopy

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Surface-enhanced fluorescence and application study based on Ag-wheat leaves

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Chinese Physics B 2022年第3期31卷 555-562页

作者： Hongwen Cao Liting Guo Zhen Sun Tifeng Jiao Mingli Wang State Key Laboratory of Materials Science&Technology and Key Laboratory for Microstructural Material Physics of Hebei Province School of ScienceYanshan UniversityQinhuangdao 066004China Hebei Key Laboratory of Applied Chemistry School of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004China

Wheat leaves with natural microstructures as substrates were covered by the silver nanoislands by magnetron to prepare a low-cost, environment-friendly and mass production surface-enhanced fluorescence(SEF) substrate(Ag-WL substrate). The best SEF substrate was selected by repeatly certifying the fluorescence intensity of 10^(-5)M Rhodamine B(RB) and 10^(-5)M Rhodamine 6G(R6G) aqueous solutions. The abundant semi-spherical protrusions and flake-like structures on the surface of the Ag-WL substrate produce high-density hot spots, which provides a new and simple idea for the preparation of biomimetic materials. The results of 3D finite-different time-domain(FDTD) simulation show that the nanoisland gap of semi-spherical protrusions and flake-like structures has produced rich hotspots. By adjusting the time of magnetron sputtering, the enhancement factor(EF) was as high as 839 times, relative standard deviation(RSD) reached as low as 10.7%, and the substrate was very stable and repeatable, which shows that Ag-WL substrate is ***, semi-spherical protrusions provide stronger surface-enhanced Raman scattering(SERS) effects compared to flake-like structure. What is more surprising is that the detection limit of the substrate for toxic substance crystal violet(CV) is as low as 10^(-10)M.

关键词： surface-enhanced fluorescence wheat leaf crystal violet semi-spherical protrusions

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