Results 11 to 20 of about 688 (173)

A dynamic key management and secure data transfer based on m-tree structure with multi-level security framework for Internet of vehicles

open access: yesConnection Science, 2022
Nowadays, broadband wireless networks and 5G have improvements in the quality and dependability of network services for high-speed mobile vehicles. Within an open communication environment on the Internet of vehicles named IoV, personal details will be ...
Hua Yi Lin, Meng-Yen Hsieh
doaj   +1 more source

An Efficient Double Parameter Elliptic Curve Digital Signature Algorithm for Blockchain

open access: yesIEEE Access, 2021
The classic Elliptic curve digital Signature Algorithm (ECDSA) uses one inversion operation in the process of signature and verification, which greatly reduces the efficiency of digital signatures.
Shuang-Gen Liu, Wan-Qi Chen, Jia-Lu Liu
doaj   +1 more source

Modifications of ECDSA [PDF]

open access: yes, 2003
We describe two variants of ECDSA one of which is secure, in the random oracle model, against existential forgery but suffers from the notion of duplicate signatures. The second variant is also secure against existential forgery but we argue that it is likely to possess only four natural duplicate signatures.
Malone-Lee, John, Smart, Nigel
openaire   +1 more source

Threshold ECDSA with an Offline Recovery Party [PDF]

open access: yesMediterranean Journal of Mathematics, 2021
A $(t,n)-$ threshold signature scheme enables distributed signing among $n$ players such that any subgroup of size $t$ can sign, whereas any group with fewer players cannot. Our goal is to produce signatures that are compatible with an existing centralized signature scheme: the key generation and signature algorithm are replaced by a communication ...
Battagliola M.   +3 more
openaire   +3 more sources

Secure and efficient two-party ECDSA signature scheme

open access: yesTongxin xuebao, 2021
To solve the easy disclosure of signature private key and excessive concentration of signature rights, a secure and efficient two-party ECDSA signature scheme was proposed for the blockchain based network trading systems.By pre-computing one-time pad ...
Jing WANG, Libing WU, Min LUO, Debiao HE
doaj   +2 more sources

Speeding-Up Elliptic Curve Cryptography Algorithms

open access: yesMathematics, 2022
In recent decades there has been an increasing interest in Elliptic curve cryptography (ECC) and, especially, the Elliptic Curve Digital Signature Algorithm (ECDSA) in practice.
Diana MaimuĊ£, Alexandru Cristian Matei
doaj   +1 more source

A Key Recovery Protocol for Multiparty Threshold ECDSA Schemes

open access: yesIEEE Access, 2022
Recently, threshold ECDSA schemes have received much attention from the security community, due to the need of efficient key management in the blockchain system.
Myungsun Kim   +5 more
doaj   +1 more source

A Multi-Party Functional Signatures Scheme for Private Blockchain

open access: yesCryptography, 2023
Digital signature technology is essential for ensuring the authenticity and unforgeability of transactions in a private blockchain framework. In some scenarios, transactions require verification from multiple parties, each of whom needs to authenticate ...
Quan Zhou   +4 more
doaj   +1 more source

Towards Secure and Usable Certificate-Based Authentication System Using a Secondary Device for an Industrial Internet of Things

open access: yesApplied Sciences, 2020
As the number of controllers and devices increases in Industrial Internet of Things (IIoT) applications, it is essential to provide a secure and usable user authentication system for human operators who have to manage tens or hundreds of controllers and ...
Jusop Choi   +3 more
doaj   +1 more source

Cryptographic Considerations for Automation and SCADA Systems Using Trusted Platform Modules

open access: yesSensors, 2019
The increased number of cyber threats against the Supervisory Control and Data Acquisition (SCADA) and automation systems in the Industrial-Internet-of-Things (IIoT) and Industry 4.0 era has raised concerns in respect to the importance of securing ...
Alexandra Tidrea   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy