Results 31 to 40 of about 499 (157)

Tag Second-preimage Attack against π-cipher

open access: yes, 2014
The π-cipher is one of the candidates of the CAESAR competition. One of the advertised features of the π-cipher is tag second-preimage resistance: it should be hard to generate a message with a given tag, even for the legitimate key holder (insider ...
Leurent, Gaëtan
core   +1 more source

Enhancing Medical Images Security and Efficiency With Adaptive Compressed Sensing and SHA‐3 in Telemedicine

open access: yesInternational Journal of Biomedical Imaging, Volume 2025, Issue 1, 2025.
Security issues of telemedicine‐based secure transmission of medical images find a very thin line drawn between diagnostic acceptability and cybersecurity. Partial but imperfect solutions emerge. JPEG2000 and HEVC concentrate only on compression, failing to provide any security consideration.
Ashraf Al Sharah   +7 more
wiley   +1 more source

Preimage Attack on Parallel FFT-Hashing [PDF]

open access: yes, 2007
Parallel FFT-Hashing was designed by C. P. Schnorr and S. Vaudenay in 1993. The function is a simple and light weight hash algorithm with 128-bit digest.
Donghoon Chang
core  

ArtProtect: Blockchain and NFC‐based anti‐counterfeit system for physical art

open access: yesIET Blockchain, Volume 4, Issue 4, Page 423-442, December 2024.
An anti‐counterfeiting system for physical art based on Ethereum blockchain and near‐field communication technology is proposed and implemented. The system leverages the use of Ethereum smart contracts and inter‐planetary file system to store artworks’ certificate of authenticity, and display them in a mobile app called ArtProtect.
Cindy Handoko Tantowibowo   +1 more
wiley   +1 more source

Systematic review: Comparing zk‐SNARK, zk‐STARK, and bulletproof protocols for privacy‐preserving authentication

open access: yesSECURITY AND PRIVACY, Volume 7, Issue 5, September/October 2024.
Abstract This systematic literature review examines the implementation and analysis of zk‐SNARK, zk‐STARK, and bulletproof non‐interactive zero‐knowledge proof (NIZKP) protocols in privacy‐preserving applications across diverse sectors. Examining 41 research works obtained through the systematic search queries and filtering criteria published from 2015
Bjorn Oude Roelink   +2 more
wiley   +1 more source

Preimage and pseudo-collision attacks on 29-step SM3 hash function with padding [PDF]

open access: yes, 2014
The security of SM3 hash function was revaluated by using the meet-in-the-middle attack. The preimage and pseudo-collision attack on 29-step SM3 hash function (from the 1-st step) with padding was presented.
Gao-li WANG, Yan-zhao SHEN
core   +1 more source

Improved Preimage Attacks on 4-Round Keccak-224/256

open access: yes, 2021
This paper provides an improved preimage attack method on standard 4-round Keccak-224/256. The method is based on the work pioneered by Li and Sun, who design a linear structure of 2-round Keccak-224/256 with 194 degrees of freedom left.
He, Le, Lin, Xiaoen, Yu, Hongbo
core   +1 more source

Badly approximable grids and k$k$‐divergent lattices

open access: yesMathematika, Volume 70, Issue 3, July 2024.
Abstract Let A∈Matm×n(R)$A\in \operatorname{Mat}_{m\times n}(\mathbb {R})$ be a matrix. In this paper, we investigate the set BadA⊂Tm$\operatorname{Bad}_A\subset \mathbb {T}^m$ of badly approximable targets for A$A$, where Tm$\mathbb {T}^m$ is the m$m$‐torus. It is well known that BadA$\operatorname{Bad}_A$ is a winning set for Schmidt's game and hence
Nikolay Moshchevitin   +2 more
wiley   +1 more source

Multi‐hop anonymous payment channel network based on onion routing

open access: yesIET Blockchain, Volume 4, Issue 2, Page 197-208, June 2024.
To solve the payment channel network path privacy problem, we analyse the multi‐hop anonymous and privacy‐preserving payment channel network scheme and propose a multi‐hop anonymous payment channel network based on onion routing based on it. The scheme removes the routing assumptions of the original scheme, designs an onion routing‐based payment ...
Caimei Wang, Yudong Ren, Zhize Wu
wiley   +1 more source

Picard sheaves, local Brauer groups, and topological modular forms

open access: yesJournal of Topology, Volume 17, Issue 2, June 2024.
Abstract We develop tools to analyze and compare the Brauer groups of spectra such as periodic complex and real K$K$‐theory and topological modular forms, as well as the derived moduli stack of elliptic curves. In particular, we prove that the Brauer group of TMF$\mathrm{TMF}$ is isomorphic to the Brauer group of the derived moduli stack of elliptic ...
Benjamin Antieau   +2 more
wiley   +1 more source

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