Publication result detail

Threshold Signature for Privacy-preserving Blockchain

RICCI, S.; DZURENDA, P.; CASANOVA-MARQUÉS, R.; ČÍKA, P.

Original Title

Threshold Signature for Privacy-preserving Blockchain

English Title

Threshold Signature for Privacy-preserving Blockchain

Type

Paper in proceedings (conference paper)

Original Abstract

Threshold signatures received renewed interest in recent years due to their practical applicability to Blockchain technology. In this article, we propose a novel (n, t)-threshold signature scheme suitable for increasing security and privacy in Blockchain technology. Our scheme allows splitting a Blockchain wallet into multiple devices so that a threshold of them is needed for signing. This increases the security of the transactions, e.g., more devices need to be compromised to recover the key and permits, and the privacy, e.g., the signing is made anonymously on behalf of the group of users sharing the Blockchain wallet. Our experimental results show that the signing algorithm requires less than 10 ms in the cases of 10 devices involved.

English abstract

Threshold signatures received renewed interest in recent years due to their practical applicability to Blockchain technology. In this article, we propose a novel (n, t)-threshold signature scheme suitable for increasing security and privacy in Blockchain technology. Our scheme allows splitting a Blockchain wallet into multiple devices so that a threshold of them is needed for signing. This increases the security of the transactions, e.g., more devices need to be compromised to recover the key and permits, and the privacy, e.g., the signing is made anonymously on behalf of the group of users sharing the Blockchain wallet. Our experimental results show that the signing algorithm requires less than 10 ms in the cases of 10 devices involved.

Keywords

Multi-signature;Blockchain;Secret Sharing;Paillier Cryptosystem;Schnorr Protocol

Key words in English

Multi-signature;Blockchain;Secret Sharing;Paillier Cryptosystem;Schnorr Protocol

Authors

RICCI, S.; DZURENDA, P.; CASANOVA-MARQUÉS, R.; ČÍKA, P.

RIV year

2023

Released

27.08.2022

Publisher

Springer

Location

Münster, Germany

ISBN

978-3-031-16167-4

Book

Business Process Management: Blockchain, Robotic Process Automation, and Central and Eastern Europe Forum, Lecture Notes in Business Information Processing

ISBN

1865-1348

Periodical

Lecture Notes in Business Information Processing

State

unknown

Pages from

100

Pages to

115

Pages count

16

URL

https://link.springer.com/chapter/10.1007/978-3-031-16168-1_7

BibTex

@inproceedings{BUT178490,
  author="Sara {Ricci} and Petr {Dzurenda} and Raúl {Casanova-Marqués} and Petr {Číka}",
  title="Threshold Signature for Privacy-preserving Blockchain",
  booktitle="Business Process Management: Blockchain, Robotic Process Automation, and Central and Eastern Europe Forum, Lecture Notes in Business Information Processing",
  year="2022",
  journal="Lecture Notes in Business Information Processing",
  number="7",
  pages="100--115",
  publisher="Springer",
  address="Münster, Germany",
  doi="10.1007/978-3-031-16168-1\{_}7",
  isbn="978-3-031-16167-4",
  issn="1865-1348",
  url="https://link.springer.com/chapter/10.1007/978-3-031-16168-1_7"
}