51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
package addresses
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import (
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"fmt"
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"github.com/btcsuite/btcd/chaincfg"
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"github.com/btcsuite/btcutil/hdkeychain"
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"github.com/muun/libwallet/btcsuitew/btcutilw"
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"github.com/muun/libwallet/musig"
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)
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// CreateAddressV5 returns a P2TR WalletAddress using Musig with the signing and cosigning keys.
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func CreateAddressV5(userKey, muunKey *hdkeychain.ExtendedKey, path string, network *chaincfg.Params) (*WalletAddress, error) {
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witnessProgram, err := CreateWitnessScriptV5(userKey, muunKey)
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if err != nil {
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return nil, fmt.Errorf("failed to generate witness script v5: %w", err)
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}
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address, err := btcutilw.NewAddressTaprootKey(witnessProgram, network)
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if err != nil {
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return nil, err
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}
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return &WalletAddress{
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address: address.EncodeAddress(),
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version: V5,
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derivationPath: path,
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}, nil
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}
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func CreateWitnessScriptV5(userKey, muunKey *hdkeychain.ExtendedKey) ([]byte, error) {
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userPublicKey, err := userKey.ECPubKey()
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if err != nil {
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return nil, err
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}
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muunPublicKey, err := muunKey.ECPubKey()
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if err != nil {
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return nil, err
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}
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combined, err := musig.CombinePubKeysWithTweak(userPublicKey, muunPublicKey, nil)
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if err != nil {
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return nil, err
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}
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xOnlyCombined := combined.SerializeCompressed()[1:]
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return xOnlyCombined, nil
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}
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