Results 131 to 140 of about 29,768,854 (286)

SHA-1, SAT-solving, and CNF [PDF]

open access: yes, 2017
Finding a preimage for a SHA-1 hash is, at present, a computationally intractable problem. SAT-solvers have been useful tools for handling such problems and can often, through heuristics, generate acceptable solutions.
Motara, Yusuf, M, Irwin, Barry V W
core  

Discovery and Fine‐Scale Mapping of Hadal Xenophyophore Habitat in the Nova Canton Trough, Central Pacific Ocean

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Discovery and fine‐scale mapping of a hadal xenophyophore field: submersible video transects and photogrammetry enable semi‐automated delineation of xenophyophores, revealing their abundance, spatial organisation, structural complexity and contribution to habitat heterogeneity at ~8000 m depth.
Denise J. B. Swanborn   +5 more
wiley   +1 more source

FinTech and Environmental Sustainability: Evidence From Brazil

open access: yesSustainable Development, EarlyView.
ABSTRACT This study explores the dynamic interplay between economic growth and environmental sustainability from a FinTech perspective, using Brazil as a case study. While FinTech's contribution to green transformation, sustainable finance, and resource efficiency has gained increasing attention, a notable lack of empirical research remains to assess ...
Kemal Eyuboglu, Umut Uzar
wiley   +1 more source

A Microfluidic Dialysis Chip for Continuous Purification of Lipid Nanoparticles

open access: yesSmall Methods, EarlyView.
A 3D‐printed microfluidic dialysis chip enables gentle, continuous‐flow purification of lipid nanoparticles (LNPs). A number‐of‐transfer‐units (NTU)‐based mass‐transfer model guides device design and identifies channel height as the principal geometric parameter controlling ethanol removal and buffer exchange.
Da Zou   +8 more
wiley   +1 more source

Adjusting Our Thinking About Feeding Animals: Fiber as the Metric for Mimicking Natural Diets

open access: yesZoo Biology, EarlyView.
A typical effect of the change of an animal group to a diet higher in fiber: juveniles keep growing, animals of ideal body weight maintain their weight, and obese individuals lose weight. ABSTRACT Free‐ranging animals often ingest markedly different diets than their counterparts under human care, whether companion animals, production animals, or zoo ...
Marcus Clauss   +4 more
wiley   +1 more source

Application for Demonstration of Hash Algorithms SHA-1 and SHA-2

open access: yes, 2012
In this thesis, the theory related to the hash algorithms SHA-1 and SHA-2 is presented, along with a description of possible implementation of an application that demonstrates how these algorithms work.
Siska, Josef
core   +1 more source

ECG‐TransCovNet: A hybrid transformer model for accurate arrhythmia detection using Electrocardiogram signals

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
Abstract Abnormalities in the heart's rhythm, known as arrhythmias, pose a significant threat to global health, often leading to severe cardiac conditions and sudden cardiac deaths. Therefore, early and accurate detection of arrhythmias is crucial for timely intervention and potentially life‐saving treatment.
Hasnain Ali Shah   +4 more
wiley   +1 more source

Some thoughts on Collision Attacks in the Hash Functions MD5, SHA-0 and SHA-1 ⋆

open access: yes, 2008
. The design principle of Merkle-Damg˚ard construction is collision resistance of the compression function implies collision resistance of the hash function. Recently multi-block collisions have been found on the hash functions MD5, SHA-0 and SHA-1 using
Praveen Gauravaram   +2 more
core  

A secured cloud‐medical data sharing with A‐BRSA and Salp ‐Ant Lion Optimisation Algorithm

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
Abstract Sharing medical data among healthcare providers, researchers, and patients is crucial for efficient healthcare services. Cloud‐assisted smart healthcare (s‐healthcare) systems have made it easier to store EHRs effectively. However, the traditional encryption algorithms used to secure this data can be vulnerable to attacks if the encryption key
Adel Binbusayyis   +7 more
wiley   +1 more source

دِرَاسَةٌ حَولَ زِيَادَةِ استِيقَانِ الرَّسَائِلِ النَّصِّيَّةِ المُرْسَلَةِ باستِخْدَامِ خَوَارِزْمِيَّاتِ التَّوقِيعِ الرَّقْمِيِّ

open access: yesمجلة جامعة دمشق للعلوم الأساسية
قمنا في هذا البحثِ باقتراح نموذجًا لزيادةِ استيقانِ الرَّسائلِ المُرسلةِ عبرَ الشَّبكةِ. هذا النموذج يمر بمرحلتين على الشكل الآتي: المرحلــة الأولــى: تطويرُ خوارزميَّـــــةِ الـ MD5 التي  تُعتبرُ الخوارزميّــَةَ الأساسيَّـــــةَ والشاملــــةَ التي ...
ماجد محمد الخيرو
doaj  

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