mirror of
https://github.com/muun/recovery.git
synced 2025-02-23 11:32:33 -05:00
104 lines
2.7 KiB
Go
104 lines
2.7 KiB
Go
package libwallet
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import (
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"errors"
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"fmt"
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"github.com/btcsuite/btcutil"
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"github.com/muun/libwallet/addresses"
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"github.com/btcsuite/btcd/chaincfg"
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"github.com/btcsuite/btcd/wire"
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)
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func CreateAddressV3(userKey, muunKey *HDPublicKey) (MuunAddress, error) {
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return addresses.CreateAddressV3(&userKey.key, &muunKey.key, userKey.Path, userKey.Network.network)
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}
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type coinV3 struct {
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Network *chaincfg.Params
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OutPoint wire.OutPoint
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KeyPath string
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Amount btcutil.Amount
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MuunSignature []byte
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}
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func (c *coinV3) SignInput(index int, tx *wire.MsgTx, userKey *HDPrivateKey, muunKey *HDPublicKey) error {
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userKey, err := userKey.DeriveTo(c.KeyPath)
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if err != nil {
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return fmt.Errorf("failed to derive user key: %w", err)
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}
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muunKey, err = muunKey.DeriveTo(c.KeyPath)
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if err != nil {
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return fmt.Errorf("failed to derive muun key: %w", err)
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}
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if len(c.MuunSignature) == 0 {
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return errors.New("muun signature must be present")
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}
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witnessScript, err := createWitnessScriptV3(userKey.PublicKey(), muunKey)
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if err != nil {
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return err
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}
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sig, err := c.signature(index, tx, userKey.PublicKey(), muunKey, userKey)
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if err != nil {
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return err
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}
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zeroByteArray := []byte{}
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txInput := tx.TxIn[index]
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txInput.Witness = wire.TxWitness{zeroByteArray, sig, c.MuunSignature, witnessScript}
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return nil
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}
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func (c *coinV3) FullySignInput(index int, tx *wire.MsgTx, userKey, muunKey *HDPrivateKey) error {
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derivedUserKey, err := userKey.DeriveTo(c.KeyPath)
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if err != nil {
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return fmt.Errorf("failed to derive user key: %w", err)
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}
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derivedMuunKey, err := muunKey.DeriveTo(c.KeyPath)
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if err != nil {
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return fmt.Errorf("failed to derive muun key: %w", err)
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}
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muunSignature, err := c.signature(index, tx, derivedUserKey.PublicKey(), derivedMuunKey.PublicKey(), derivedMuunKey)
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if err != nil {
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return err
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}
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c.MuunSignature = muunSignature
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return c.SignInput(index, tx, userKey, muunKey.PublicKey())
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}
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func createRedeemScriptV3(userKey, muunKey *HDPublicKey) ([]byte, error) {
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return addresses.CreateRedeemScriptV3(&userKey.key, &muunKey.key, userKey.Network.network)
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}
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func createWitnessScriptV3(userKey, muunKey *HDPublicKey) ([]byte, error) {
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return addresses.CreateWitnessScriptV3(&userKey.key, &muunKey.key, userKey.Network.network)
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}
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func (c *coinV3) signature(index int, tx *wire.MsgTx, userKey *HDPublicKey, muunKey *HDPublicKey,
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signingKey *HDPrivateKey) ([]byte, error) {
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witnessScript, err := createWitnessScriptV3(userKey, muunKey)
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if err != nil {
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return nil, err
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}
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redeemScript, err := createRedeemScriptV3(userKey, muunKey)
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if err != nil {
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return nil, fmt.Errorf("failed to build reedem script for signing: %w", err)
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}
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return signNonNativeSegwitInput(
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index, tx, signingKey, redeemScript, witnessScript, c.Amount)
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}
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