EVERYTHING about Schnorr Signatures
summary
Schnorr replaces ECDSA to enable MuSig key aggregation (many keys become one on‑chain), interactive signature aggregation for coinjoin fee sharing (Wasabi‑style mixes could pay a tiny fraction — order of 1/100–1/150 per participant), and Taproot/Graftroot commit+key-path to hide huge script sets behind a single key. Implementation work lives in secp256k1 and secp256k1-zkp (Liquid uses 11-of-15 threshold tests), batch verification gives ~2x speedups at block scale, and interactivity + nonce state reuse create hardware‑wallet and protocol challenges.
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chapters (11)
- 0:00Start
- 0:46Why Am I in Bitcoin
- 8:16Multi Signatures
- 9:35Key Aggregation
- 9:59Threshold Signatures
- 16:48Zero Knowledge Proof
- 18:45Shared Public Key
- 20:17Verifiable Secret Sharing
- 28:04Batch Verification
- 31:35Signature Aggregation
- 38:36Scribbler Scripts
