Ask/Knowledge Atlas/Schnorr signatures
Cryptography · Maintained 2026

Schnorr signatures

BIP340 defines Bitcoin's Schnorr signature scheme for Taproot key-path spending, using secp256k1 with a linear signature construction that also supports advanced key-aggregation protocols.

Context

Why it matters

BIP340 defines Bitcoin's Schnorr signature scheme for Taproot key-path spending, using secp256k1 with a linear signature construction that also supports advanced key-aggregation protocols.

Canonical knowledge

What California Bitcoin maintains

  • BIP340 defines Bitcoin's Schnorr signature scheme for Taproot key-path spending, using secp256k1 with a linear signature construction that also supports advanced key-aggregation protocols.

Primary and technical sources

Evidence before assertion
BIP340: Schnorr Signatures for secp256k1

Bitcoin BIPs

Tier 1 · primaryBIP 341: Taproot

Bitcoin developers

Tier 1 · primary

Related concepts

Continue through the knowledge graph
Digital signaturesTaprootMuSig2
Machine accessAgent-ready
https://californiabitcoin.org/api/agent/v1/topic/schnorr-signatureshttps://californiabitcoin.org/api/agent/v1/search?q=Schnorr%20signatureshttps://californiabitcoin.org/api/agent/v1/coveragehttps://californiabitcoin.org/api/agent/v1/sources