Results 41 to 50 of about 2,695,884 (227)

Quantum collision finding for homomorphic hash functions [PDF]

arXiv, 2021
Hash functions are a basic cryptographic primitive. Certain hash functions try to prove security against collision and preimage attacks by reductions to known hard problems. These hash functions usually have some additional properties that allow for that reduction.
arxiv  

Cryptanalysis of a Cayley Hash Function Based on Affine Maps in one Variable over a Finite Field [PDF]

arXiv, 2023
Cayley hash functions are cryptographic hashes constructed from Cayley graphs of groups. The hash function proposed by Shpilrain and Sosnovski (2016), based on linear functions over a finite field, was proven insecure. This paper shows that the proposal by Ghaffari and Mostaghim (2018) that uses the Shpilrain and Sosnovski's hash in its construction is
arxiv  

Computational and Energy Costs of Cryptographic Algorithms on Handheld Devices

Future Internet, 2011
Networks are evolving toward a ubiquitous model in which heterogeneous devices are interconnected. Cryptographic algorithms are required for developing security solutions that protect network activity. However, the computational and energy limitations of
Helena Rifà-Pous, Jordi Herrera-Joancomartí   +1 more
doaj   +1 more source

In-Memory Computation Based Mapping of Keccak-f Hash Function

Frontiers in Nanotechnology, 2022
Cryptographic hash functions play a central role in data security for applications such as message authentication, data verification, and detecting malicious or illegal modification of data.
Sandeep Kaur Kingra, Vivek Parmar, Manan Suri   +2 more
doaj   +1 more source

A Survey: Cryptographic Hash Functions for Digital Stamping

Journal of Southwest Jiaotong University, 2019
The current study aims to examine a general overview of the application of hash functions in cryptography and study the relationships between cryptographic hash functions and uses of the digital signature.
I. Salem, Adil M. Salman, Maad M. Mijwil
semanticscholar   +1 more source

Development of a New Post-Quantum Digital Signature Algorithm: Syrga-1

Computers
The distinguishing feature of hash-based algorithms is their high confidence in security. When designing electronic signature schemes, proofs of security reduction to certain properties of cryptographic hash functions are used.
Kunbolat Algazy, Kairat Sakan, Ardabek Khompysh, Dilmukhanbet Dyusenbayev   +3 more
doaj   +1 more source

PROPOSING A NEW METHOD FOR ENCRYPTING SATELLITE IMAGES BASED ON HASH FUNCTION AND CHAOS PARAMETERS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Due to the importance of providing security in satellite imagery and their transmission, in this paper, a new method for encrypting satellite images based on Hash key-based symmetric cryptographic algorithm is proposed which is developed by combining the
M. Sedighi, S. K. Mahmoudi, A. S. Amini
doaj   +1 more source

Analysis of the new standard hash function [PDF]

International Conference on Computer Aided Systems Theory, 142-149, 2013, 2022
On 2$^{nd}$ October 2012 the NIST (National Institute of Standards and Technology) in the United States of America announced the new hashing algorithm which will be adopted as standard from now on. Among a total of 73 candidates, the winner was Keccak, designed by a group of cryptographers from Belgium and Italy.
arxiv  

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

International 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, Philipp Kleinpaß, Jaspar Meister, Innocenzo De Marco, Stefanie Häusler, Thomas Strang, Nino Walenta, Florian Moll   +7 more
wiley   +1 more source

Leveraging Blockchain and Smart Contracts to Combat Greenwashing in Sustainable Development

Sustainable 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