Results 41 to 50 of about 10,795 (238)

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Bit-Based Evaluation of Lightweight Block Ciphers SLIM, LBC-IoT, and SLA by Mixed Integer Linear Programming

IET Information Security
Many lightweight block ciphers have been proposed for IoT devices that have limited resources. SLIM, LBC-IoT, and SLA are lightweight block ciphers developed for IoT systems.
Nobuyuki Sugio
doaj   +1 more source

Cryptanalysis of AES-PRF and Its Dual

IACR Transactions on Symmetric Cryptology, 2018
A dedicated pseudorandom function (PRF) called AES-PRF was proposed by Mennink and Neves at FSE 2018 (ToSC 2017, Issue 3). AES-PRF is obtained from AES by using the output of the 5-th round as the feed-forward to the output state.
Patrick Derbez, Tetsu Iwata, Ling Sun, Siwei Sun, Yosuke Todo, Haoyang Wang, Meiqin Wang   +6 more
doaj   +1 more source

Impossible differential attack on seven-round AES-128

IET Information Security, 2008
A specific class of differential cryptanalytic approach, named as impossible differential attack, has been successfully applied to several symmetric cryptographic primitives in particular encryption schemes such as advanced encryption standard (AES). Such attacks exploit differences that are impossible at some intermediate state of the cipher algorithm.
B. Bahrak, M.R. Aref
openaire   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

On Impossible Boomerang Attacks

IACR Transactions on Symmetric Cryptology
The impossible boomerang attack, introduced in 2008 by Jiqiang Lu, is an extension of the impossible differential attack that relies on a boomerang distinguisher of probability 0 for discarding incorrect key guesses.
Xavier Bonnetain, Margarita Cordero, Virginie Lallemand, Marine Minier, María Naya-Plasencia   +4 more
doaj   +1 more source

Complex Cryptographic and User‐Centric Physically Unclonable Functions Enabled by Strain‐Sensitive Nanocrystals via Selective Ligand Exchange

Advanced Functional Materials, EarlyView.
This study investigates electromechanical PUFs that improve on traditional electric PUFs. The electron transport materials are coated randomly through selective ligand exchange. It produces multiple keys and a key with motion dependent on percolation and strain, and approaches almost ideal inter‐ and intra‐hamming distances.
Seungshin Lim, Hanseok Seo, Taesung Park, Byung Ku Jung, Junhyeok Park, Young Kyun Choi, Dae Yang Oh, Soong Ju Oh   +7 more
wiley   +1 more source

Quantum Automated Tools for Finding Impossible Differentials

Mathematics
Due to the superiority of quantum computing, traditional cryptography is facing a severe threat. This makes the security evaluation of cryptographic systems in quantum attack models both significant and urgent.
Huiqin Xie, Qiqing Xia, Ke Wang, Yanjun Li, Li Yang   +4 more
doaj   +1 more source

Improved Meet-in-the-Middle Attacks on Generic Feistel Constructions

IEEE Access, 2019
In this paper, we present improved meet-in-the-middle key-recovery attacks on six-round and seven-round Feistel constructions separately. The attacks are based on Guo et al.'s work which appends one round to the five-round distinguisher to attack the six-
Shibin Zhao, Xiaohan Duan, Yuanhao Deng, Zhiniang Peng, Junhu Zhu   +4 more
doaj   +1 more source