Results 41 to 50 of about 91,922 (250)
Hash-chain-based authentication for IoT
ADCAIJ: Advances in Distributed Computing and Artificial Intelligence Journal, 2016 The number of everyday interconnected devices continues to increase and constitute the Internet of Things (IoT). Things are small computers equipped with sensors and wireless communications capabilities that are driven by energy constraints, since they use batteries and may be required to operate over long periods of time. The majority of these devices
Ricardo Costa, António Pinto
openaire +4 more sources
Sensors, 2021 As the development of IoT technologies has progressed rapidly recently, most IoT data are focused on monitoring and control to process IoT data, but the cost of collecting and linking various IoT data increases, requiring the ability to proactively ...
Sung-Ho Sim, Yoon-Su Jeong
doaj +1 more source
Exact enumeration of Hamiltonian circuits, walks, and chains in two and three dimensions [PDF]
, 2007 We present an algorithm for enumerating exactly the number of Hamiltonian chains on regular lattices in low dimensions. By definition, these are sets of k disjoint paths whose union visits each lattice vertex exactly once.
Bousquet-Mélou M +7 more
core +4 more sources
A blockchain index structure based on subchain query
Journal of Cloud Computing: Advances, Systems and Applications, 2021 Blockchain technology has the characteristics of decentralization and tamper resistance, which can store data safely and reduce the cost of trust effectively.
Xiaogang Xing +4 more
doaj +1 more source
When Are Learned Models Better Than Hash Functions? [PDF]
arXiv, 2021 In this work, we aim to study when learned models are better hash functions, particular for hash-maps. We use lightweight piece-wise linear models to replace the hash functions as they have small inference times and are sufficiently general to capture complex distributions.
arxiv
Regional Science Policy &Practice, EarlyView., 2022 Abstract The agri‐food supply chain has been a popular research topic in recent years. The combination of a demand for products of high quality and safety standards and the increasing number of stakeholders in supply chain networks has required the agri‐food business to transform from vertically integrated to vertically operated supply chain networks ...
Thanh_Tuan Chu, Thi Thu Tra Pham
wiley +1 more source
Covert Channels in One-Time Passwords Based on Hash Chains [PDF]
Proceedings of the European Interdisciplinary Cybersecurity Conference, 2020 We present a covert channel between two network devices where one authenticates itself with Lamport's one-time passwords based on a cryptographic hash function. Our channel enables plausible deniability. We also present countermeasures to detect the presence of such a covert channel, which are non-trivial because hash values are randomly looking binary
Keller, Jörg, Wendzel, Steffen
openaire +3 more sources
Blockchain-Based Agri-Food Supply Chain: A Complete Solution
IEEE Access, 2020 Supply chains are evolving into automated and highly complex networks and are becoming an important source of potential benefits in the modern world. At the same time, consumers are now more interested in food product quality.
Affaf Shahid +5 more
doaj +1 more source
Novel self-renewal hash chain scheme based on (t,n) threshold and division tree
Tongxin xuebao, 2013 The introduction of renewal hash chain overcame resource-constrained defect in traditional hash chains,but the existing renewable schemes had still held unsatisfactory performance especially on security and complexity.The definitions of repetition ...
Hai-ping HUANG +4 more
doaj +2 more sources
Information, 2018 High resolution remote sensing (HRRS) images are widely used in many sensitive fields, and their security should be protected thoroughly. Integrity authentication is one of their major security problems, while the traditional techniques cannot fully meet
Kaimeng Ding +4 more
doaj +1 more source