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A Quantum Blind Multi-Signature Method for the Industrial Blockchain [PDF]

open access: yesEntropy, 2021
Traditional anti-quantum methods and multi-signature technologies to secure the blockchain against quantum attacks will quickly reduce the efficiency and scalability of the industrial blockchain, where the computational resources will experience a ...
Zhengying Cai   +4 more
doaj   +2 more sources

PSDAAP: Provably Secure Data Authenticated Aggregation Protocols Using Identity-Based Multi-Signature in Marine WSNs [PDF]

open access: yesSensors, 2017
Data authenticated aggregation is always a significant issue for wireless sensor networks (WSNs). The marine sensors are deployed far away from the security monitoring.
Lifei Wei   +5 more
doaj   +2 more sources

Quantum Security of a Compact Multi-Signature

open access: yesCryptography
With the rapid advances in quantum computing, quantum security is now an indispensable property for any cryptographic system. In this paper, we study how to prove the security of a complex cryptographic system in the quantum random oracle model. We first
Shaoquan Jiang
doaj   +4 more sources

Blockchain-based Secure Data Sharing Mechanism Design in the Vehicular Networks [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2022
A secure data sharing mechanism based on blockchain was proposed aiming at the security and privacy issues of vehicle sharing information in the Internet of Vehicles.
LI Yongqiang, LIU Zhaowei
doaj   +1 more source

Robust Subgroup ID-based Multi-signature Scheme [PDF]

open access: yesJisuanji kexue, 2022
The existing multi-signature scheme applied in the consensus mechanism scenario defaults that the signers are honest entities,so the security and validity of the signature could not be guaranteed when malicious nodes existed.In order to improve the ...
TIAN Chen, WANG Zhi-wei
doaj   +1 more source

Before Ethereum. The Origin and Evolution of Blockchain Oracles

open access: yesIEEE Access, 2023
Before the advent of alternative blockchains such as Ethereum, the future of decentralization was all in the hands of Bitcoin. Together with Nakamoto itself, early developers were trying to leverage Bitcoin’s potential to decentralize ...
Giulio Caldarelli
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

Two-Round Multi-Signatures from Okamoto Signatures

open access: yesMathematics, 2023
Multi-signatures (MS) are a special type of public-key signature (PKS) in which multiple signers participate cooperatively to generate a signature for a single message. Recently, applications that use an MS scheme to strengthen the security of blockchain
Kwangsu Lee, Hyoseung Kim
doaj   +1 more source

On the Security of Two-Round Multi-Signatures [PDF]

open access: yes2019 IEEE Symposium on Security and Privacy (SP), 2019
A multi-signature scheme allows a group of signers to collaboratively sign a message, creating a single signature that convinces a verifier that every individual signer approved the message. The increased interest in technologies to decentralize trust has triggered the proposal of highly efficient two-round Schnorr-based multi-signature schemes ...
Manu Drijvers   +6 more
openaire   +1 more source

Blockchain-based High-threshold Signature Protocol Integrating DKG and BLS [PDF]

open access: yesJisuanji kexue, 2021
Threshold signatures are fundamental tools for multi-party information security protocols.It is widely used in fields such as identity authentication,anti-counterfeiting and tamper-resistance.We introduce a new decentralized threshold signature protocol ...
LIU Feng, WANG Yi-fan, YANG Jie, ZHOU Ai-min, QI Jia-yin
doaj   +1 more source

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