Results 21 to 30 of about 2,827 (196)

Novel Hash-time-lock-contract Based Cross-chain Token Swap Mechanism of Blockchain [PDF]

open access: yesJisuanji kexue, 2022
Blockchain is one of the technical hotspots in recent years,and the research theories related to it are being enriched.However,it is still facing the key problem of small throughput and low processing efficiency before it can be implemented into the ...
LIU Feng, ZHANG Jia-hao, ZHOU Jun-jie, LI Mu, KONG De-li, YANG Jie, QI Jia-yin, ZHOU Ai-min
doaj   +1 more source

Renewable Multi-secret Sharing of Self-selecting Sub-secret [PDF]

open access: yesJisuanji gongcheng, 2016
The existing public verifiable multi-secret sharing schemes without trusted centers can not make sub-secrets self-selected and periodical renewable simultaneously.In order to solve the problem,a public verifiable and renewable multi-secret sharing scheme
GU Ting,DU Weizhang
doaj   +1 more source

MARAS: Mutual Authentication and Role-Based Authorization Scheme for Lightweight Internet of Things Applications

open access: yesSensors, 2023
The Internet of things (IoT) accommodates lightweight sensor/actuator devices with limited resources; hence, more efficient methods for known challenges are sought after. Message queue telemetry transport (MQTT) is a publish/subscribe-based protocol that
Özlem Şeker   +2 more
doaj   +1 more source

Atomic Crosschain Transactions for Ethereum Private Sidechains

open access: yesBlockchain: Research and Applications, 2022
The Atomic Crosschain Transaction for Ethereum Private Sidechains protocol allows composable programming across permissioned Ethereum blockchains. It allows for inter-contract and inter-blockchain function calls that are both synchronous and atomic: if ...
Peter Robinson   +2 more
doaj   +1 more source

Differential Analysis of a Cryptographic Hashing Algorithm HBC-256

open access: yesApplied Sciences, 2022
The article observes the new hashing algorithm HBC-256. The HBC-256 algorithm is based on the block cipher of the compression function CF (Compression Function) and produces a 256-bits hash value.
Kunbolat Algazy   +4 more
doaj   +1 more source

Novel self-renewal hash chain scheme based on (t,n) threshold and division tree

open access: yesTongxin 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

Fast parallel construction of variable-length Markov chains

open access: yesBMC Bioinformatics, 2021
Background Alignment-free methods are a popular approach for comparing biological sequences, including complete genomes. The methods range from probability distributions of sequence composition to first and higher-order Markov chains, where a k-th order ...
Joel Gustafsson   +3 more
doaj   +1 more source

Energy-Efficient Hash Chain Traversal

open access: yesIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2011
A hash chain H for a one-way hash function h(·) is a sequence of hash values , where vn is a secret value, vi is generated by vi=h(vi+1) for i=n-1,n-2,...,0 an0d v0 is a public value. A hash chain traversal algorithm T computes and outputs the hash chain H, returning vi in time period (called round) i for 1≤i≤n.
Yum, DH, Seo, JW, Lee, PJ
openaire   +2 more sources

Selective Location Blinding Using Hash Chains [PDF]

open access: yes, 2011
Location-based applications require a user's movements and positions to provide customized services. However, location is a sensitive piece of information that should not be revealed unless strictly necessary. In this paper we propose a procedure that allows a user to control the precision in which his location information is exposed to a service ...
Gabriele Lenzini   +2 more
openaire   +2 more sources

Machine Learning for Green Solvents: Assessment, Selection and Substitution

open access: yesAdvanced Science, EarlyView.
Environmental regulations have intensified demand for green solvents, but discovery is limited by Solvent Selection Guides (SSGs) that quantify solvent sustainability. Training a machine learning model on GlaxoSmithKline SSG, a database of sustainability metrics for 10,189 solvents, GreenSolventDB is developed. Integrated with Hansen solubility metrics,
Rohan Datta   +4 more
wiley   +1 more source

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