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Distributed Curve25519 signature prototype. Secret is split between N peers, they sign the message, resulting signature is calculated.

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Distributed signature prototype

Keygen phase: an EdDSA private key is split between several peers
Signing phase: a subset of peers signs the message with their secret share
Final signature is reconstructed from peer signature pieces

Used algorithms are described in Threshold Signatures Using Ed25519 and Ed448

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Threshold signature

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Distributed Curve25519 signature prototype. Secret is split between N peers, they sign the message, resulting signature is calculated.

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