Results 51 to 60 of about 45,527 (206)

Spatiotemporal chaotic one-way Hash function construction based on coupled tent maps

open access: yesTongxin xuebao, 2007
A novel coupled tent maps-based spatiotemporal chaotic cryptographic Hash function was proposed.Compared with the discrete tent map,the coupled discrete tent spatiotemporal chaotic maps have longer computer-realization-period,nearly uniform distribution ...
LIU Jian-dong, FU Xiu-li
doaj   +2 more sources

SMASH – A Cryptographic Hash Function [PDF]

open access: yes, 2005
This paper presents a new hash function design, which is different from the popular designs of the MD4-family. Seen in the light of recent attacks on MD4, MD5, SHA-0, SHA-1, and on RIPEMD, there is a need to consider other hash function design strategies. The paper presents also a concrete hash function design named SMASH.
openaire   +1 more source

Blockchain technology disruptions: Exploring accounting and auditing academics and practitioners' perception

open access: yesAccounting &Finance, EarlyView.
Abstract This study explores the practical impact of blockchain technology (BCT), which contrasts strongly with literature that has predominantly hypothesised BCT's potential to disrupt accounting practice. We interviewed 44 practitioners and academics with knowledge of BCT across 13 countries and industries.
Musbaudeen Titilope Oladejo   +3 more
wiley   +1 more source

Miners' Reward Elasticity and Stability of Competing Proof‐of‐Work Cryptocurrencies

open access: yesInternational Economic Review, EarlyView.
ABSTRACT Proof‐of‐Work cryptocurrencies employ miners to sustain the system through algorithmic reward adjustments. We develop a stochastic model of the multicurrency mining and identify conditions for stable transaction speeds. Bitcoin's algorithm requires hash supply elasticity <$<$1 for stability, while ASERT remains stable for any elasticity and ...
Kohei Kawaguchi   +2 more
wiley   +1 more source

A Novel Improvement With an Effective Expansion to Enhance the MD5 Hash Function for Verification of a Secure E-Document

open access: yesIEEE Access, 2020
MD5 is a one-way cryptographic function used in various fields for maintaining data integrity. The application of a Hash function can provide much protection and privacy and subsequently reduce data usage.
Ammar Mohammed Ali, Alaa Kadhim Farhan
doaj   +1 more source

Blockchain for the Arts and Humanities

open access: yesFuture Humanities, Volume 4, Issue 1, May 2026.
ABSTRACT As born‐digital cultural materials proliferate, the arts and humanities require infrastructures that guarantee provenance, authenticity, and equitable access. This paper delivers a comprehensive, critical survey of blockchain's potential and limits across the sector.
James O'Sullivan
wiley   +1 more source

A Secure and Robust Image Hashing Scheme Using Gaussian Pyramids

open access: yesEntropy, 2019
Image hash is an alternative to cryptographic hash functions for checking integrity of digital images. Compared to cryptographic hash functions, an image hash or a Perceptual Hash Function (PHF) is resilient to content preserving distortions and ...
Iram Bashir   +4 more
doaj   +1 more source

Analysis of cryptographic hash functions [PDF]

open access: yes, 2019
This thesis concentrates on analysis of cryptographic hash functions, one of the most important primitives used in the modern cryptography. We start with an introduction of the cryptographic hash functions, and a survey on the development of the cryptanalysis tools. To enrich the cryptanalysts' toolbox, we developed several interesting techniques under
openaire   +3 more sources

Towards Enhancing Healthcare Data Privacy: Integrating BioClinicalBERT With Polyalphabetic Cipher for Entity Recognition and Anonymization

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
This study presents a dual‐layered anonymization model combining BioClinicalBERT and polyalphabetic cipher to accurately identify and protect sensitive healthcare data. It achieves strong F1 scores while maintaining data utility, enabling privacy‐preserving clinical research compliant with GDPR and HIPAA regulations.
Deblina Mazumder Setu   +3 more
wiley   +1 more source

Password protection in IT systems [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2018
The aim of the article is to systematise the methods of securing static passwords stored in IT systems. Pros and cons of those methods are presented and conclusions as a recommendation for IT system designers are proposed.
Przemysław Rodwald, Bartosz Biernacik
doaj   +1 more source

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