Results 21 to 30 of about 10,638,853 (320)

Supervised Matrix Factorization Hashing With Quantitative Loss for Image-Text Search

open access: yesIEEE Access, 2020
Image-text hashing approaches have been widely applied in large-scale similarity search applications due to their efficiency in both search speed and storage efficiency.
Huan Zhao   +3 more
doaj   +1 more source

Multimixer-128: Universal Keyed Hashing Based on Integer Multiplication

open access: yesIACR Transactions on Symmetric Cryptology, 2023
In this paper we introduce a new keyed hash function based on 32-bit integer multiplication that we call Multimixer-128. In our approach, we follow the key-then-hash parallel paradigm. So, we first add a variable length input message to a secret key and
Koustabh Ghosh   +2 more
doaj   +1 more source

A new hash function and its use in read mapping on genome [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2020
Mapping reads onto genomes is an indispensable step in sequencing data analysis. A widely used method to speed up mapping is to index a genome by a hash table, in which genomic positions of $k$-mers are stored in the table.
Farzaneh Salari   +2 more
doaj   +1 more source

From Graphs to Keyed Quantum Hash Functions [PDF]

open access: yes, 2016
We present two new constructions of quantum hash functions: the first based on expander graphs and the second based on extractor functions and estimate the amount of randomness that is needed to construct them.
Ziatdinov, Mansur
core   +2 more sources

Analysis of the amplitude form of the quantum hash function

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2023
In this article, the properties of quantum hash functions are further explored. Previous findings show that so-called small-bias sets (special subsets of the set of elements of a cyclic group) generate a “phase” quantum hash function. Here, it was proved
M. F. Ablayev   +2 more
doaj   +1 more source

Theoretical and Experimental Analysis of Cryptographic Hash Functions

open access: yesJournal of Telecommunications and Information Technology, 2019
The paper presents a theoretical introduction to the cryptographic hash function theory and a statistical experimental analysis of selected hash functions.
Jacek Tchórzewsk   +1 more
doaj   +1 more source

Integrity verification for digital Holy Quran verses using cryptographic hash function and compression

open access: yesJournal of King Saud University: Computer and Information Sciences, 2020
Data Integrity is one of the primary concepts in information security. The main task of the cryptographic hash function is to assure the integrity of the transmitted data.
Mishal Almazrooie   +5 more
doaj   +1 more source

Non-Relaxation Deep Hashing Method for Fast Image Retrieval

open access: yesIEEE Access, 2023
Deep hashing methods utilize an end-to-end framework to mutually learn feature representations and hash codes, thereby achieving a better retrieval performance.
Xiaofei Li
doaj   +1 more source

Evolving hash functions by means of genetic programming [PDF]

open access: yes, 2006
Proceedings of the 8th annual conference on Genetic and evolutionary computation. Seattle, Washington, USA, July 08-12, 2006The design of hash functions by means of evolutionary computation is a relatively new and unexplored problem. In this work, we use
Estébanez Tascón, César   +3 more
core   +5 more sources

Design and Analysis of New Version of Cryptographic Hash Function Based on Improved Chaotic Maps With Induced DNA Sequences

open access: yesIEEE Access, 2023
One of the first and most used hashing algorithms in blockchains is SHA-256 so the main aim of this paper is how to increase the security level of the blockchain based on the increasing hashing algorithm security.
Salwa M. Serag Eldin   +7 more
doaj   +1 more source

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