Low-Bandwidth Threshold ECDSA via Pseudorandom Correlation Generators

Damiano Abram, Ariel Nof, Claudio Orlandi, Peter Scholl, Omer Shlomovits

Publikation: Bidrag til bog/antologi/rapport/proceedingKonferencebidrag i proceedingsForskning

1 Citationer (Scopus)

Abstract

Digital signature schemes are a fundamental component of secure distributed systems, and the theft of a signing-key might have huge real-world repercussions e.g., in applications such as cryptocurrencies. Threshold signature schemes mitigate this problem by distributing shares of the secret key on several servers and requiring that enough of them interact to be able to compute a signature. In this paper, we provide a novel threshold protocol for ECDSA, arguably the most relevant signature scheme in practice. Our protocol is the first one where the communication complexity of the preprocessing phase is only logarithmic in the number of ECDSA signatures to be produced later, and it achieves therefore a so-called silent preprocessing. Our protocol achieves active security against any number of arbitrarily corrupted parties.

OriginalsprogEngelsk
Titel2022 IEEE Symposium on Security and Privacy (SP)
Antal sider19
ForlagIEEE
Publikationsdato2022
Sider2554-2572
ISBN (Trykt)978-1-6654-1317-6
ISBN (Elektronisk)978-1-6654-1316-9
DOI
StatusUdgivet - 2022
Begivenhed43rd IEEE Symposium on Security and Privacy, SP 2022 - San Francisco, USA
Varighed: 23 maj 202226 maj 2022

Konference

Konference43rd IEEE Symposium on Security and Privacy, SP 2022
Land/OmrådeUSA
BySan Francisco
Periode23/05/202226/05/2022

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