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Making the Impossible Inevitable:Scaling What Matters 认领 引用
1
作者 JOHN QUELCH 《China Today》 2026年第8期31-33,共3页
The world’s greatest challenges require moving beyond the invention phase to master the art of global scaling through a pragmatic blend of competition and collaboration.
关键词 competition collaboration inevitable scaling collaboration greatest challenges impossible competition global scaling
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11-Round Impossible Differential Algebraic Attack for Serpent Encryption Algorithm 认领 引用
2
作者 HU Zhihua QIN Zhongping 《Wuhan University Journal of Natural Sciences》 CAS 2010年第3期232-236,共5页
This paper explored algebraic features of nonlinear parts in Serpent encryption algorithm and offered an 11-round Serpent-128 impossible differential algebraic attack through utilizing the method in constructing S-box... This paper explored algebraic features of nonlinear parts in Serpent encryption algorithm and offered an 11-round Serpent-128 impossible differential algebraic attack through utilizing the method in constructing S-box algebraic equations.The new method analyzed block ll-round Serpent with 2127 selected plaintexts and 2-29 bytes memory space at the same time of giving a new design principle of S-box anti-algebraic attack. 展开更多
关键词 impossible differential Serpent algebraic equation
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A New Method for Impossible Differential Cryptanalysis of 8-Round Advanced Encryption Standard 认领 引用
3
作者 CHEN Jie HU Yupu WEI Yongzhuang 《Wuhan University Journal of Natural Sciences》 EI CAS 2006年第6期1559-1562,共4页
This paper first presents an impossible differential property for 5-round Advanced Encryption Standard （AES） with high probability. Based on the property and the impossible differential cryptanalytic method for the ... This paper first presents an impossible differential property for 5-round Advanced Encryption Standard （AES） with high probability. Based on the property and the impossible differential cryptanalytic method for the 5-round AES, a new method is proposed for cryptanalyzing the 8-round AES-192 and AES-256. This attack on the reduced 8-round AES-192 demands 2^121 words of memory, and performs 2^148 8-round AES-192 encryptions. This attack on the reduced 8-round AES-256 demands 2^153 words of memory, and performs 2^180 8-round AES-256 encryptions. Furthermore, both AES-192 and AES-256 require about 2^98 chosen plaintexts for this attack, and have the same probability that is only 2^-3 to fail to recover the secret key. 展开更多
关键词 impossible differential cryptanalysis eryptanalysis Advanced Encryption Standard
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佳能广告“Impossible Made Possible”之文体分析 认领 引用
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作者 常霄 《长江师范学院学报》 2011年第6期121-124,共4页
佳能打印机广告"impossible made possible"有着显著的文体特征:一是语音方面,各种押韵被用到,如头韵、尾韵等;音调重音在末尾;元辅音的频繁重复使用。二是词汇方面,形容词占据着极大的比重;反义词possible与impossible强烈... 佳能打印机广告"impossible made possible"有着显著的文体特征:一是语音方面,各种押韵被用到,如头韵、尾韵等;音调重音在末尾;元辅音的频繁重复使用。二是词汇方面,形容词占据着极大的比重;反义词possible与impossible强烈的对比效果。三是句法方面,过去简单小句的使用使句子短小精湛。四是语义方面,修辞手法—"重复"的使用。五是语篇方面,情态的精准把握与极性词的使用;语言组织时概念主位与述位精确的定位;口语与书面语的交替使用。基于以上文体特征,该广告大获成功。 展开更多
关键词 “impossible made possible” 文体 解读
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Ambiguous Cylinders:a New Class of Impossible Objects 认领 引用
5
作者 SUGIHARA Kokichi 《Computer Aided Drafting,Design and Manufacturing》 2015年第4期19-25,共7页
This paper presents a new class of surfaces that give two quite different appearances when they are seen from two special viewpoints.The inconsistent appearances can be perceived by simultaneously viewing them directl... This paper presents a new class of surfaces that give two quite different appearances when they are seen from two special viewpoints.The inconsistent appearances can be perceived by simultaneously viewing them directly and in a mirror.This phenomenon is a new type of optical illusion,and we have named it the"ambiguous cylinder illusion",because it is typically generated by cylindrical surfaces.We consider why this illusion arises,and we present a mathematical method for designing ambiguous cylinders. 展开更多
关键词 ambiguous cylinder cylindrical surface impossible object optical illusion
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impossible和unlikely用法辨析 认领 引用
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作者 游巧荣 《中学生英语（高中版）》 2004年第4期8-8,共1页
关键词 impossible unlikely 用法 形容词 词语辨析 高中 英语
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Mission Impossible? 认领 引用
7
作者 Annelie Rozeboom 《ChinAfrica》 2016年第2期32-33,共2页
African opposition to the ICC threatens an important legal recourse available to the continent＇s victims of human rights violations
关键词 ICC Mission Impossible
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Full-round impossible diferential attack on shadow block cipher 认领 引用
8
作者 Yuting Liu Yongqiang Li +1 位作者 Huiqin Chen Mingsheng Wang 《Cybersecurity》 EI CSCD 2025年第1期247-261,共15页
Lightweight block ciphers are the essential encryption algorithm for devices with limited resources.Its goal is to ensure the security of data transmission through resource-constrained devices.Impossible diferential c... Lightweight block ciphers are the essential encryption algorithm for devices with limited resources.Its goal is to ensure the security of data transmission through resource-constrained devices.Impossible diferential cryptanalysis is one of the most efective cryptanalysis on block ciphers,and assessing the ability of resisting this attack is a basic design criterion.Shadow is a lightweight block cipher proposed by Guo et al.(IEEE Internet Things J 8(16):13014-13023,2021).It utilizes a combination of ARX operations and generalized Feistel structure to overcome the weakness of the traditional Feistel structure that only difuses half in one round.In this paper,we focus on the differential property of Shadow and its security against impossible diferential cryptanalysis.First,we use the SAT method to automatically search for a full-round impossible diferential distinguisher of Shadow-32.Then,based on the experimental results,we prove that Shadow has a diferential property with probability 1 based on the propagation of the state.Further,we can obtain an impossible diferential distinguisher for an arbitrary number of rounds of Shadow.Finally,we perform a full key recovery attack on the full-round Shadow-32 and Shadow-64.Both experimentally and theoretically,our results indicate that Shadow is critically fawed,and regardless of the security strength of the internal components and the number of rounds applied,the overall cipher remains vulnerable to impossible diferential cryptanalysis. 展开更多
关键词 Lightweight block cipher Shadow Impossible diferential cryptanalysis SAT
An Impossible Trinity of International Tax Cooperation: Dilemmas and Pathways for OECD and UN Tax Reforms 认领 引用
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作者 Zhang Zhiyong Li Qiaolang +1 位作者 Han Lin Gao Yang 《Belt and Road Initiative Tax Journal》 2025年第2期41-52,共12页
Currently,the Two-Pillar solution efforts by the OECD under the G20 mandate encounters numerous challenges,while the tax reform initiated by the UN,despite achieving substantive progress,has an uncertain future becaus... Currently,the Two-Pillar solution efforts by the OECD under the G20 mandate encounters numerous challenges,while the tax reform initiated by the UN,despite achieving substantive progress,has an uncertain future because it involves a wide range of interests and significant controversy.From the perspective of international tax cooperation,this article applies a theoretical framework of the“Impossible Trinity”,arguing that effectiveness,inclusiveness,and autonomy cannot be achieved simultaneously,to explain the underlying logic behind the dilemmas of OECD and UN tax reforms and provide a theoretical interpretation of the evolution of international tax rules over the past century.Focusing on UN tax reforms,this article proposes pathways by balancing the“Impossible Trinity”interrelationships.It argues that future international tax reforms should uphold multilateralism and long-termism,prioritizing different vertices of the“Impossible Trinity”at different stages to achieve dynamic equilibrium,thereby promoting the gradual improvement of multilateral international tax cooperation mechanisms. 展开更多
关键词 International tax cooperation International tax reform International tax rules OECD UN Impossible trinity
From Small Commodities to Global Reach 认领 引用
10
作者 WANG WEN LIU YING 《ChinAfrica》 2026年第8期20-22,共3页
Twenty years ago,Xi Jinping,then secretary of the CPC Zhejiang Provincial Committee,famously described Yiwu’s development miracle as turning the impossible into the possible,creating something out of nothing and maki... Twenty years ago,Xi Jinping,then secretary of the CPC Zhejiang Provincial Committee,famously described Yiwu’s development miracle as turning the impossible into the possible,creating something out of nothing and making gold from stone. 展开更多
关键词 Xi Jinping Yiwu making gold stone something nothing development miracle turning impossible possible turning impossible creating something nothing
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Searching for impossible subspace trails and improved impossible differential characteristics for SIMON-like block ciphers 认领 引用 被引量：2
11
作者 Xuzi Wang Baofeng Wu +1 位作者 Lin Hou Dongdai Lin 《Cybersecurity》 EI CSCD 2021年第1期237-250,共14页
In this paper,we greatly increase the number of impossible differentials for SIMON and SIMECK by eliminating the 1-bit constraint in input/output difference,which is the precondition to ameliorate the complexity of at... In this paper,we greatly increase the number of impossible differentials for SIMON and SIMECK by eliminating the 1-bit constraint in input/output difference,which is the precondition to ameliorate the complexity of attacks.We propose an algorithm which can greatly reduce the searching complexity to find such trails efficiently since the search space exponentially expands to find impossible differentials with multiple active bits.There is another situation leading to the contradiction in impossible differentials except for miss-in-the-middle.We show how the contradiction happens and conclude the precondition of it defined as miss-from-the-middle.It makes our results more comprehensive by applying these two approach simultaneously.This paper gives for the first time impossible differential characteristics with multiple active bits for SIMON and SIMECK,leading to a great increase in the number.The results can be verified not only by covering the state-of-art,but also by the MILP model. 展开更多
关键词 Impossible differential characteristics Impossible subspace trails Miss-from-the-middle SIMON SIMECK
Impossible Differential Cryptanalysis of Reduced-Round ARIA and Camellia 认领 引用 被引量：39
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作者 吴文玲 张文涛 冯登国 《Journal of Computer Science & Technology》 SCIE EI 2007年第3期449-456,共8页
This paper studies the security of the block ciphers ARIA and Camellia against impossible differential cryptanalysis. Our work improves the best impossible differential cryptanalysis of ARIA and Camellia known so far.... This paper studies the security of the block ciphers ARIA and Camellia against impossible differential cryptanalysis. Our work improves the best impossible differential cryptanalysis of ARIA and Camellia known so far. The designers of ARIA expected no impossible differentials exist for 4-round ARIA. However, we found some nontrivial 4-round impossible differentials, which may lead to a possible attack on 6-round ARIA. Moreover, we found some nontrivial 8-round impossible differentials for Camellia, whereas only 7-round impossible differentials were previously known. By using the 8-round impossible differentials, we presented an attack on 12-round Camellia without FL/FL^-1 layers. 展开更多
关键词 block cipher ARIA Camellia data complexity time complexity impossible differential cryptanalysis
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Related-Key Impossible Diferential Attack on Reduced-Round LBlock 认领 引用 被引量：9
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作者 温隆 王美琴 赵静远 《Journal of Computer Science & Technology》 SCIE EI CSCD 2014年第1期165-176,共12页
LBlock is a 32-round lightweight block cipher with 64-bit block size and 80-bit key. This paper identifies 16- round related-key impossible differentials of LBlock, which are better than the 15-round related-key impos... LBlock is a 32-round lightweight block cipher with 64-bit block size and 80-bit key. This paper identifies 16- round related-key impossible differentials of LBlock, which are better than the 15-round related-key impossible differentials used in the previous attack. Based on these 16-round related-key impossible differentials, we can attack 23 rounds of LBlock while the previous related-key impossible differential attacks could only work on 22-round LBlock. This makes our attack on LBlock the best attack in terms of the number of attacked rounds. 展开更多
关键词 lightweight block cipher LBlock related-key impossible diferential cryptanalysis
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Impossible Differential Attacks on 13-Round CLEFIA-128 认领 引用 被引量：6
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作者 Hamid Mala Mohammad Dakhilalian Mohsen Shakiba 《Journal of Computer Science & Technology》 SCIE EI CSCD 2011年第4期744-750,共7页
CLEFIA, a new 128-bit block cipher proposed by Sony Corporation, is increasingly attracting cryptanalysts＇ attention. In this paper, we present two new impossible differential attacks on 13 rounds of CLEFIA-128. The ... CLEFIA, a new 128-bit block cipher proposed by Sony Corporation, is increasingly attracting cryptanalysts＇ attention. In this paper, we present two new impossible differential attacks on 13 rounds of CLEFIA-128. The proposed attacks utilize a variety of previously known techniques, in particular the hash table technique and redundancy in the key schedule of this block cipher. The first attack does not consider the whitening layers of CLEFIA, requires 21~9＂5 chosen plaintexts, and has a running time equivalent to about 2112.9 encryptions. The second attack preserves the whitening layers, requires 2117.8 chosen plaintexts, and has a total time complexity equivalent to about 2121.2 encryptions. 展开更多
关键词 block cipher cryptanalysis impossible differential CLEFIA
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Impossible differential cryptanalysis of advanced encryption standard 认领 引用 被引量：3
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作者 CHEN Jie HU YuPu ZHANG YueYu 《Science in China(Series F)》 2007年第3期342-350,共9页
Impossible differential cryptanalysis is a method recovering secret key,which gets rid of the keys that satisfy impossible differential relations.This paper concentrates on the impossible differential cryptanalysis of... Impossible differential cryptanalysis is a method recovering secret key,which gets rid of the keys that satisfy impossible differential relations.This paper concentrates on the impossible differential cryptanalysis of Advanced Encryption Standard(AES)and presents two methods for impossible differential cryptanalysis of 7-round AES-192 and 8-round AES-256 combined with time-memory trade-off by exploiting weaknesses in their key schedule.This attack on the reduced to 7-round AES-192 requires about 294.5 chosen plaintexts,demands 2129 words of memory,and performs 21577-round AES-192 encryptions.Furthermore,this attack on the reduced to 8-round AES-256 requires about 2^101 chosen plaintexts,demands 2^201 words of memory,and performs 2^2288-round AES-256 encryptions. 展开更多
关键词 block cipher impossible differential cryptanalysis advanced encryption standard cryptanalysis
Non-Existence of One-Byte Active Impossible Differentials for 5-Round AES in the Master-Key Setting 认领 引用
16
作者 YAN Xueping TAN Lin QI Wenfeng 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2023年第3期1336-1350,共15页
Impossible differential cryptanalysis is an important approach to evaluate the security of block ciphers. In EUROCRYPT 2016, Sun, et al. proved that there exists no impossible differential longer than four rounds for ... Impossible differential cryptanalysis is an important approach to evaluate the security of block ciphers. In EUROCRYPT 2016, Sun, et al. proved that there exists no impossible differential longer than four rounds for the AES structure where S-boxes are arbitrary. In DCC 2019, Wang,et al. proved that any differential is possible for 5-round AES, assuming that the round keys are independent and uniformly random. In ASIACRYPT 2020, Hu, et al. used automatic search to show that there exists no one-byte active impossible differential for 5-round AES-128 considering the relations of 3-round keys. By algebraic methods, this paper theoretically proves that there exists no one-byte active impossible differential for 5-round AES even considering the relations of all round keys. Firstly,the authors prove the independence of ten bytes in the consecutive four round keys under the key schedule of AES-128. Then 5-round AES is decomposed to three subfunctions and the propagations of the considered differences in these subfunctions are discussed. Finally, the authors prove that the considered differential trails can be connected by the ten bytes of round keys. Furthermore, for any given one-byte active differential, there are at least 251 master keys such that the differential is possible for 5-round AES-128. 展开更多
关键词 AES impossible differential key schedule master-key setting
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Foreign Traders’Home Away from Home 认领 引用
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作者 LIU LINGLING BAI ZIWEI LIU JUNGUO 《China Today》 2026年第7期46-49,共4页
Yiwu works together with businesspeople from around the globe to turn more“impossibilities”into“possibilities.”THE inland city of Yiwu in east China’s Zhejiang Province has expanded its commercial ties to the glo... Yiwu works together with businesspeople from around the globe to turn more“impossibilities”into“possibilities.”THE inland city of Yiwu in east China’s Zhejiang Province has expanded its commercial ties to the globe.It hosts over 10,000 foreign-invested business entities,with 38,000 resident foreign businesspeople,and its total import and export value reached RMB 209.37 billion during the first quarter of 2026,marking a historic high. 展开更多
关键词 impossibilities possibilities Yiwu business ties foreign traders import export global businesspeople inland city
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First-principles microkinetic simulations revealing the driving effect of zeolite in bifunctional catalysts for the conversion of syngas to olefins 认领 引用
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作者 Wende Hu Jun Ke +1 位作者 Yangdong Wang Chuanming Wang 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2025年第6期222-233,共12页
Direct conversion of syngas to light olefins(STO)on bifunctional catalysts has garnered significant attention,yet a comprehensive understanding of the reaction pathway and reaction kinetics remains elusive.Herein,we t... Direct conversion of syngas to light olefins(STO)on bifunctional catalysts has garnered significant attention,yet a comprehensive understanding of the reaction pathway and reaction kinetics remains elusive.Herein,we theoretically addressed the kinetics of the direct STO reaction on typical ZnAl2O4/zeolite catalysts by establishing a complete reaction network,consisting of methanol synthesis and conversion,water gas shift(WGS)reaction,olefin hydrogenation,and other relevant steps.The WGS reaction occurs very readily on ZnAl2O4 surface whereas which is less active towards alkane formation via olefin hydrogenation,and the latter can be attributed to the characteristics of the H2 heterolytic activation and the weak polarity of olefins.The driving effect of zeolite component towards CO conversion was demonstrated by microkinetic simulations,which is sensitive to reaction conditions like space velocity and reaction temperature.Under a fixed ratio of active sites between oxide and zeolite components,the concept of the“impossible trinity”of high CO conversion,high olefin selectivity,and high space velocity can thus be manifested.This work thus provides a comprehensive kinetic picture on the direct STO conversion,offering valuable insights for the design of each component of bifunctional catalysts and the optimization of reaction conditions. 展开更多
关键词 Syngas to olefins Bifunctional catalysis Microkinetic simulations Driving effect Impossible trinity ZnAl2O4oxide
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BRIDGING A DIVIDE:MISSION IMPOSSIBLE? 认领 引用
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作者 BU PING director of the Institute of Modern History, the Chinese Academy of Social Sciences, and head of the Chinese committee of the China-Japan joint history study 《Beijing Review》 2007年第15期16-17,共2页
Chinese and Japanese scholars are seeking a common understanding of history,which they believe will strengthen bilateral ties
关键词 BRIDGING A DIVIDE:MISSION IMPOSSIBLE
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滨海湾金沙在新加坡率先推出Impossible 2.0概念 认领 引用
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作者 新加坡滨海湾金沙 《航空港》 2019年第1期89-89,共1页
滨海湾金沙三家顶级名厨餐厅日前率先在新加坡推出备受期待的Impossible 2.0系列餐品,标志着'素肉'这一极具突破性的餐饮概念在新加坡首次亮相。自3月7日起,名厨David Myers的Adrift餐厅、名厨Gordon Ramsay的Bread Street Kitc... 滨海湾金沙三家顶级名厨餐厅日前率先在新加坡推出备受期待的Impossible 2.0系列餐品,标志着'素肉'这一极具突破性的餐饮概念在新加坡首次亮相。自3月7日起,名厨David Myers的Adrift餐厅、名厨Gordon Ramsay的Bread Street Kitchen餐厅和名厨Wolfgang Puck的CUT牛排餐厅将位列新加坡首次推出以素食牛肉为创作原料的前8家餐厅之席,标志着滨海湾金沙作为综合娱乐胜地在可持续发展领域开启了新篇章。 展开更多
关键词 Impossible 2.0 新加坡
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