# Threshold signatures

Published articles for Threshold signatures.

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## Securing private keys with a high-performance, threshold signature-based protocol

DevFeed: [Securing private keys with a high-performance, threshold signature-based protocol](<https://devfeed.tech/articles/securing-private-keys-with-a-high-performance-threshold-signature-based-protocol-31860.md>)

Original publisher: [Read original article](<https://www.metachris.dev/2021/07/securing-private-keys-with-a-high-performance-threshold-signature-based-protocol/>)

Author: Chris Hager

Published: 2021-07-21T00:00:00Z

Content type: article

Language: en

Sources: [Chris Hager](<https://devfeed.tech/sources/chris-hager.md>)

Topics: [Security](<https://devfeed.tech/topics/security.md>), [ECDSA](<https://devfeed.tech/topics/ecdsa.md>), [Bitcoin](<https://devfeed.tech/topics/bitcoin.md>), [Ethereum](<https://devfeed.tech/topics/ethereum.md>), [API keys](<https://devfeed.tech/topics/api-keys.md>), [client](<https://devfeed.tech/topics/client.md>), [servers](<https://devfeed.tech/topics/servers.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [bitcoin](<https://devfeed.tech/tags/bitcoin.md>), [blockchain](<https://devfeed.tech/tags/blockchain.md>), [client](<https://devfeed.tech/tags/client.md>), [cryptography](<https://devfeed.tech/tags/cryptography.md>), [ecdsa](<https://devfeed.tech/tags/ecdsa.md>), [ethereum](<https://devfeed.tech/tags/ethereum.md>), [mpc](<https://devfeed.tech/tags/mpc.md>), [security](<https://devfeed.tech/tags/security.md>), [server](<https://devfeed.tech/tags/server.md>), [threshold-signatures](<https://devfeed.tech/tags/threshold-signatures.md>)

### AI overview

The article explains a threshold-signature protocol for securing private keys through collaborative signing. It describes splitting a key into secret shares, requiring multiple parties to cooperate, and using client/server controls for limits, revocation, and rotation. The approach applies to blockchains using ECDSA and EdDSA, including Bitcoin and Ethereum.

### Source excerpt

This post is about the paper "Improving security for users of decentralized exchanges through multiparty computation", by Robert Annessi and Ethan Fast. The paper introduces an effective algorithm for secure, collaborative signature generation using threshold signatures, and an API-key based client/server protocol that allows user-specific limits and restrictions as well as key revocations and rotations. The method supports all blockchains that use ECDSA and EdDSA signatures, which includes Bitcoin, Ethereum and the majority of popular cryptocurrencies.