Results 41 to 50 of about 442,051 (179)

Hash function requirements for Schnorr signatures

Journal of Mathematical Cryptology, 2009
We provide two necessary conditions on hash functions for the Schnorr signature scheme to be secure, assuming compact group representations such as those which occur in elliptic curve groups. We also show, via an argument in the generic group model, that
Neven Gregory, Smart Nigel P., Warinschi Bogdan   +2 more
doaj   +1 more source

QSAFE‐V: Quantum‐Enhanced Lightweight Authentication Protocol Design For Vehicular Tactile Wireless Networks

Advanced Quantum Technologies, Volume 9, Issue 7, July 2026.
A quantum‐secured authentication framework, QSAFE‐V, is introduced for vehicular Tactile Internet environments. By integrating Quantum Identity Tokens, lattice‐based cryptography, and edge‐assisted verification, the framework enables lightweight mutual authentication with strong resistance against replay, impersonation, and quantum‐enabled attacks ...
Shakil Ahmed, Amika Tabassum, Ashfaq Khokhar   +2 more
wiley   +1 more source

Ewald's Conjecture and integer points in algebraic and symplectic toric geometry

Proceedings of the London Mathematical Society, Volume 132, Issue 4, April 2026.
Abstract We solve several open problems concerning integer points of reflexive smooth polytopes, also known as monotone polytopes. While the paper belongs to the realm of discrete geometry, the connection with symplectic and algebraic geometry appears naturally since these polytopes have an important role in both areas.
Luis Crespo, Álvaro Pelayo, Francisco Santos   +2 more
wiley   +1 more source

Pseudoaneurysms as a complication of stereoelectroencephalography: Case series and clinical recommendations

Epilepsia, Volume 67, Issue 3, Page 1193-1205, March 2026.
Abstract Objective Stereoelectroencephalography (sEEG) is commonly employed in the workup for epilepsy surgery in patients with focal drug‐resistant epilepsy (DRE). Intracranial hemorrhage is a known complication, with reported incidence rates ranging from .9% to 19.1%. Rarely, pseudoaneurysms have been reported in literature as a potential cause. This
Youssra El Khou, Rick H. G. J. van Lanen, G. Louis Wagner, Simon Tousseyn, Gwendolyn de Bruyn, Christianne M. C. Hoeberigs, Bart A. J. M. Wagemans, Christiaan van der Leij, Sylvia Klinkenberg, Jeske Nelissen, Pieter L. Kubben, Olaf E. M. G. Schijns, Jim T. A. Dings, Kim Rijkers, on behalf of the ACE Epilepsy Surgery group, Gwendolyn de Bruyn, Albert Colon, Jim Dings, Marc Hendriks, Danny Hilkman, Christianne Hoeberigs, Jochem van der Pol, Lotte de Jong, Kim Rijkers, Sylvia Klinkenberg, Vivianne van Kranen Mastenbroek, Jeske Nelissen, Pieter Kubben, Walter M. Palm, Rob P. W. Rouhl, Olaf Schijns, Simon Tousseyn, Marielle Vlooswijk, Louis Wagner, Dorien Weckhuysen, Ilse van Straaten   +35 more
wiley   +1 more source

Differential-Aided Preimage Attacks On Round-Reduced Keccak

The Computer Journal, 2022
Abstract At FSE 2008, Leurent introduced the preimage attack on MD4 by exploiting differential trails. In this paper, we apply the differential-aided preimage attack to Keccak with the message modification techniques. Instead of directly finding the preimage, we exploit differential characteristics to modify the messages, so that the ...
Congming Wei, Xiaoyang Dong 0001, Willi Meier, Lingyue Qin, Ximing Fu   +4 more
openaire   +1 more source

Dimer models and conformal structures

Communications on Pure and Applied Mathematics, Volume 79, Issue 2, Page 340-446, February 2026.
Abstract Dimer models have been the focus of intense research efforts over the last years. Our paper grew out of an effort to develop new methods to study minimizers or the asymptotic height functions of general dimer models and the geometry of their frozen boundaries.
Kari Astala, Erik Duse, István Prause, Xiao Zhong   +3 more
wiley   +1 more source

Low-weight Pseudo Collision Attack on Shabal and Preimage Attack on Reduced Shabal-512 [PDF]

, 2010
This paper studies two types of attacks on the hash function Shabal. The first attack is a low-weight pseudo collision attack on Shabal. Since a pseudo collision attack is trivial for Shabal, we focus on a low-weight pseudo collision attack.
Taizo Shirai, Takanori Isobe
core   +1 more source

Parallel Algorithm for Approximate State Graph Exploration With Restricted Memory Footprint

Concurrency and Computation: Practice and Experience, Volume 38, Issue 1, January 2026.
ABSTRACT We investigate the performance of algorithms that explore large state graphs of finite state machines without input by following paths. To improve on anchor‐based and candidate‐based explorations and to avoid the performance overhead of full anchor lists and the tuning sensitivity of timeout‐based methods, we propose and analyze exploration ...
Jörg Keller, Sebastian Litzinger
wiley   +1 more source

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

Journal 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, Azman Samsudin, Adnan Abdul-Aziz Gutub, Muhammad Syukri Salleh, Mohd Adib Omar, Shahir Akram Hassan   +5 more
doaj   +1 more source

Decentralized Privacy Preserving Data Sharing Model for Electronic Health Records (EHR) Using Blockchain Technology

IET Blockchain, Volume 6, Issue 1, January/December 2026.
This article talks about blockEHR Healthcare providers can validate raw physiological data with the help of IoMT devices and edge computing role‐based access control (RBAC). ABSTRACT In centralized systems prone to data breaches and single points of failure, issues about security, privacy, scalability, and real‐time sharing of electronic health records
R. Rajakarthik, Sumalatha V, R Rajalingam   +2 more
wiley   +1 more source