Results 91 to 100 of about 264 (128)
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Low-Bandwidth Threshold ECDSA via Pseudorandom Correlation Generators
2022 IEEE Symposium on Security and Privacy (SP), 2022Digital 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 ...
Peter Scholl +2 more
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OptiVersa-ECDSA: Fast Threshold-ECDSA With Cheater Identification for Blockchains
IEEE Transactions on Dependable and Secure ComputingYunlv Lv +4 more
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Threshold ECDSA in Three Rounds
2024 IEEE Symposium on Security and Privacy (SP)Jack Doerner +2 more
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Fast Multiparty Threshold ECDSA with Fast Trustless Setup
Proceedings of the 2018 ACM SIGSAC Conference on Computer and Communications Security, 2018A threshold signature scheme enables distributed signing among n players such that any subgroup of size $t+1$ can sign, whereas any group with t or fewer players cannot. While there exist previous threshold schemes for the ECDSA signature scheme, we are the first protocol that supports multiparty signatures for any $t leq n$ with an efficient ...
Rosario Gennaro, Steven Goldfeder
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UC Non-Interactive, Proactive, Threshold ECDSA with Identifiable Aborts
Proceedings of the 2020 ACM SIGSAC Conference on Computer and Communications Security, 2020Building on the Gennaro & Goldfeder and Lindell & Nof protocols (CCS '18), we present two threshold ECDSA protocols, for any number of signatories and any threshold, that improve as follows over the state of the art: -- For both protocols, only the last round requires knowledge of the message, and the other rounds can take place in a preprocessing ...
Ran Canetti +4 more
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Three-Round (Robust) Threshold ECDSA from Threshold CL Encryption
Lecture Notes in Computer ScienceBowen Jiang, Guofeng Tang, Haiyang Xue
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Securing DNSSEC Keys via Threshold ECDSA from Generic MPC
2020Deployment 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
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Efficient weighted threshold ECDSA for securing bitcoin wallet
2017 ISEA Asia Security and Privacy (ISEASP), 2017Bitcoin is a digital currency based on cryptographic algorithms. All the transactions of this currency are recorded and stored in a publically available database called blockchain. Since, these transactions are available to everyone, bitcoins must be stored in a secured wallet. These bitcoin wallets can be opened only by its secret key. And if once the
Kunwar Singh
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Proceedings 2023 Network and Distributed System Security Symposium, 2023
Harry W. H. Wong +3 more
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Harry W. H. Wong +3 more
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Unstoppable Wallets: Chain-assisted Threshold ECDSA and its Applications
Proceedings of the 19th ACM Asia Conference on Computer and Communications SecurityThe security and usability of cryptocurrencies and other blockchain-based applications depend on the secure management of cryptographic keys. However, current approaches for managing these keys often rely on third parties, trusted to be available at a minimum, and even serve as custodians in some solutions, creating single points of failure and ...
Guy Zyskind +2 more
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