Results 41 to 50 of about 5,211,169 (196)

A Fast Single-Key Two-Level Universal Hash Function

open access: yesIACR Transactions on Symmetric Cryptology, 2017
Universal hash functions based on univariate polynomials are well known, e.g. Poly1305 and GHASH. Using Horner’s rule to evaluate such hash functionsrequire l − 1 field multiplications for hashing a message consisting of l blocks where each block is one ...
Debrup Chakraborty   +2 more
doaj   +1 more source

Discrete Semantics-Guided Asymmetric Hashing for Large-Scale Multimedia Retrieval

open access: yesApplied Sciences, 2021
Cross-modal hashing technology is a key technology for real-time retrieval of large-scale multimedia data in real-world applications. Although the existing cross-modal hashing methods have achieved impressive accomplishment, there are still some ...
Jun Long   +3 more
doaj   +1 more source

One-way hash function with chaotic dynamic parameters

open access: yesTongxin xuebao, 2008
A novel keyed one-way hash function based on chaotic dynamic parameters was presented which combines the advantage of both chaotic system and conventional one-way hash function.In the proposed approach the fixed parameters of conventional hash function ...
GUO Wei1   +3 more
doaj   +2 more sources

HMNT: Hash Function Based on New Mersenne Number Transform

open access: yesIEEE Access, 2020
In the field of information security, hash functions are considered important as they are used to ensure message integrity and authentication. Despite various available methods to design hash functions, the methods have been proven to time inefficient ...
Ali Maetouq, Salwani Mohd Daud
doaj   +1 more source

Quantum-TII/quantum-search-scaled-hash-preimages: Quantum Search for Scaled Hash Function Preimages - Qibo

open access: yes, 2020
Python code using the Qibo library that follows the paper Quantum Search for Scaled Hash Function ...
Stefano Carrazza, Sergi Ramos
core   +1 more source

EliMAC: Speeding Up LightMAC by around 20%

open access: yesIACR Transactions on Symmetric Cryptology, 2023
Universal hash functions play a prominent role in the design of message authentication codes and the like. Whereas it is known how to build highly efficient sequential universal hash functions, parallel non-algebraic universal hash function designs are ...
Christoph Dobraunig   +2 more
doaj   +1 more source

Cryptographic Hash Functions [PDF]

open access: yes, 2010
Cryptographic hash functions are an important tool of cryptography and play a fundamental role in efficient and secure information processing. A hash function processes an arbitrary finite length input message to a fixed length output referred to as the ...
Knudsen, Lars R.   +4 more
core   +2 more sources

Ranking-Based Deep Hashing Network for Image Retrieval

open access: yesIEEE Access, 2022
In large-scale image retrieval, the deep learning-based hashing methods have significantly progressed. However, most of the existing deep hashing methods still have the problems of low feature learning efficiency and weak ranking relationship ...
Zhisheng Zhang   +5 more
doaj   +1 more source

Hash Functions

open access: yes, 2023
AbstractHash functions are one-way functions that map arbitrary-length input to fixed-length output. Moreover, they have many cryptographic applications, such as integrity checks, password storage, and signatures. Cryptographic hash functions have some additional properties that can be formulated as hard problems: pre-image resistance, second pre-image
Urs Wagner, Thomas Lugrin
openaire   +1 more source

Fully Integrated Passive UHF RFID Tag for Hash-Based Mutual Authentication Protocol

open access: yesThe Scientific World Journal, 2015
Passive radio-frequency identification (RFID) tag has been used in many applications. While the RFID market is expected to grow, concerns about security and privacy of the RFID tag should be overcome for the future use.
Shugo Mikami   +3 more
doaj   +1 more source

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