psbt: add new fields for MuSig2 - #2198

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guggero wants to merge 9 commits into

btcsuite:masterfrom

guggero:bip-musig2-psbt

Commits on Aug 12, 2026

btcec: export ComputeSigningNonce
guggero
committed
f8c9c09
btcec: export ScalarSize
guggero
committed
7c66ef2
psbt: bump version of btcec/v2 dependency
guggero
committed
d023af2

Commits on Aug 14, 2026

psbt: add new structs for MuSig2 fields
guggero
committed
168eb47
psbt: add new MuSig2 fields to inputs and outputs
guggero
committed
edb308f
psbt: add PrevOutFetcher helper func
guggero
committed
08f0a9f
psbt: support finalizing MuSig2 partial signatures
guggero
committed
0b5b208
psbt: support adding partial MuSig2 signatures
guggero
committed
e1ae8d8
psbt: add unit tests and test vectors
guggero
committed
0541026