Results 191 to 200 of about 621,928 (343)

A Formula That Generates Hash Collisions

open access: yes, 2018
We present an explicit formula that produces hash collisions for the Merkle-Damg{\aa}rd construction. The formula works for arbitrary choice of message block and irrespective of the standardized constants used in hash functions, although some padding ...
Brockmann, Andrew
core  

Assessment of Practical Satellite Quantum Key Distribution Architectures for Current and Near‐Future Missions

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Quantum key distribution (QKD) allows the generation of cryptographic keys beyond the computational hardness paradigm and is befitting for secure data transmission requiring long‐term security. The communication distance of fiber‐based QKD, however, is limited to a few hundred kilometers due to the exponential scaling of signal attenuation ...
Davide Orsucci   +7 more
wiley   +1 more source

A perceptual hash function to store and retrieve large scale DNA sequences

open access: yes, 2014
This paper proposes a novel approach for storing and retrieving massive DNA sequences.. The method is based on a perceptual hash function, commonly used to determine the similarity between digital images, that we adapted for DNA sequences.
Bailly, Xavier   +3 more
core  

Leveraging Blockchain and Smart Contracts to Combat Greenwashing in Sustainable Development

open access: yesSustainable Development, EarlyView.
ABSTRACT Blockchain technology, when combined with smart contracts, enables buyers to distinguish between greenwashed and genuinely eco‐friendly products. The presence of counterfeit items can severely impact supply chains by diminishing brand value, eroding consumer confidence, and undermining market trust.
Ragnhild Silkoset, Arne Nygaard
wiley   +1 more source

Understanding the Association Between Bitcoin Mining and Environmental Sustainability in Light of the Sustainable Development Goals Through the DARDL and KRLS Methods

open access: yesSustainable Development, EarlyView.
ABSTRACT Assuring environmental sustainability is essential for the continuity of the ecosystem. Every sector of the economy has some degree of impact on environmental sustainability. The United Nations (UN)’ Sustainable Development Goals (SDGs) have placed these objectives within a broader global framework, offering a global plan aimed at ensuring ...
Ali Çelik, Metehan Özırmak
wiley   +1 more source

Incremental hash functions

open access: yes, 2014
Özet Fonksiyonları daha çok veri bütünlüğünde ve elektronik imza gibi kimlik doğrulamada kullanılan kriptolojinin en önemli araçlardan biridir. Bu fonksiyonlar, herhangi bir uzunluktaki girdiyi belli özelliklerle sıkıştırarak sabit bir uzunluktaki çıktıya götürler.
openaire   +3 more sources

IP address lookup using a dynamic hash function [PDF]

open access: green, 2006
Xiaojun Nie   +4 more
openalex   +1 more source

Sainsc: A Computational Tool for Segmentation‐Free Analysis of In Situ Capture Data

open access: yesSmall Methods, EarlyView.
Spatially resolved transcriptomics methods can now profile the entire transcriptome, at full organism scale with nanometre resolution. Analysis frameworks that can efficiently and intuitively process the massive data generated by these methods are lacking.
Niklas Müller‐Bötticher   +3 more
wiley   +1 more source

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