Results 11 to 20 of about 786,121 (136)
Threshold ECDSA with an Offline Recovery Party [PDF]
Mediterranean 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
core +6 more sources
Securing DNSSEC Keys via Threshold ECDSA from Generic MPC [PDF]
, 2020 Deployment of DNSSEC, although increasing, still suffers from many practical issues that results in a false sense of security. While many domains outsource zone management, they also have to outsource DNSSEC key management to the DNS operator, making the operator an attractive target for attackers.
Anders P. K. Dalskov +4 more
core +6 more sources
Bandwidth-Efficient Zero-Knowledge Proofs For Threshold ECDSA
The Computer Journal, 2023 Abstract In most threshold Elliptic Curve Digital Signature Algorithm (ECDSA) signatures using additively homomorphic encryption, the zero-knowledge (ZK) proofs related to the ciphertext or the message space are the bottleneck in terms of bandwidth as well as computation time.
Handong Cui +4 more
openaire +3 more sources
Threshold ECDSA for Decentralized Asset Custody. [PDF]
IACR Cryptol. ePrint Arch., 2020 The surge of interest in decentralization-enabling technologies sparked by the recent success of Bitcoin and other blockchains has led to several new challenges in cryptography and protocol design.
Adam Gagol +3 more
core +3 more sources
Bandwidth-Efficient Robust Threshold ECDSA in Three Rounds [PDF]
IEEE Transactions on Information Forensics and SecurityThreshold ECDSA schemes distribute the capability of issuing signatures to multiple parties. They have been used in practical MPC wallets holding cryptocurrencies.
Yingjie Lyu +6 more
core +4 more sources
Batch Range Proof: How to Make Threshold ECDSA More Efficient [PDF]
Proceedings of the 2024 on ACM SIGSAC Conference on Computer and Communications SecurityWith the demand of cryptocurrencies, threshold ECDSA recently regained popularity. So far, several methods have been proposed to construct threshold ECDSA, including the usage of OT and homomorphic encryptions (HE).
Guofeng Tang +4 more
core +4 more sources
Strength in Numbers: Threshold ECDSA to Protect Keys in the Cloud. [PDF]
IACR Cryptol. ePrint Arch., 2015 Side-channel attacks utilize information leakage in the implementation of an otherwise secure cryptographic algorithm to extract secret information. For example, adversaries can extract the secret key used in a cryptographic algorithm by observing cache ...
Marc Green 0001, Thomas Eisenbarth 0001
core +3 more sources
Threshold ECDSA in Two Rounds [PDF]
Proceedings of the 2025 ACM SIGSAC Conference on Computer and Communications SecurityWe propose the first two-round multi-party signing protocol for the Elliptic Curve Digital Signature Algorithm (ECDSA) in the threshold-optimal setting, reducing the number of rounds by one compared to the state of the art (Doerner et al., S&P \u2724 ...
Yingjie Lyu +3 more
openaire +3 more sources
A Survey of ECDSA Threshold Signing. [PDF]
IACR Cryptol. ePrint Arch., 2020 Threshold signing research progressed a lot in the last three years, especially for ECDSA, which is less MPC-friendly than Schnorr-based signatures such as EdDSA.
Jean-Philippe Aumasson +2 more
core +3 more sources
Hardware-Friendly Robust Threshold ECDSA in an Asymmetric Model.
IACR Cryptol. ePrint Arch.We propose Asymmetric Robust Threshold ECDSA (ART-ECDSA), a robust and hardware-friendly threshold ECDSA protocol designed for asymmetric settings where one participant is a resource-constrained hardware device.
Hankyung Ko +3 more
openaire +2 more sources