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128 lines
3.9 KiB
Go
128 lines
3.9 KiB
Go
package test
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import (
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"bytes"
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"context"
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"encoding/hex"
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"fmt"
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"github.com/btcsuite/btcd/btcec/v2"
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"github.com/btcsuite/btcd/btcec/v2/schnorr"
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"github.com/btcsuite/btcd/wire"
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"github.com/lightninglabs/lndclient"
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"github.com/lightningnetwork/lnd/input"
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"github.com/lightningnetwork/lnd/keychain"
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)
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type mockSigner struct {
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lnd *LndMockServices
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}
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func (s *mockSigner) SignOutputRaw(ctx context.Context, tx *wire.MsgTx,
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signDescriptors []*lndclient.SignDescriptor,
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_ []*wire.TxOut) ([][]byte, error) {
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s.lnd.SignOutputRawChannel <- SignOutputRawRequest{
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Tx: tx,
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SignDescriptors: signDescriptors,
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}
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rawSigs := [][]byte{{1, 2, 3}}
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return rawSigs, nil
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}
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func (s *mockSigner) ComputeInputScript(ctx context.Context, tx *wire.MsgTx,
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signDescriptors []*lndclient.SignDescriptor,
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prevOutputs []*wire.TxOut) ([]*input.Script, error) {
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return nil, fmt.Errorf("unimplemented")
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}
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func (s *mockSigner) SignMessage(ctx context.Context, msg []byte,
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locator keychain.KeyLocator, opts ...lndclient.SignMessageOption) (
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[]byte, error) {
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return s.lnd.Signature, nil
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}
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func (s *mockSigner) VerifyMessage(ctx context.Context, msg, sig []byte,
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pubkey [33]byte, opts ...lndclient.VerifyMessageOption) (bool, error) {
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// Make the mock somewhat functional by asserting that the message and
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// signature is what we expect from the mock parameters.
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mockAssertion := bytes.Equal(msg, []byte(s.lnd.SignatureMsg)) &&
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bytes.Equal(sig, s.lnd.Signature)
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return mockAssertion, nil
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}
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func (s *mockSigner) DeriveSharedKey(context.Context, *btcec.PublicKey,
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*keychain.KeyLocator) ([32]byte, error) {
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return [32]byte{4, 5, 6}, nil
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}
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// MuSig2CreateSession creates a new MuSig2 signing session using the local
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// key identified by the key locator. The complete list of all public keys of
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// all signing parties must be provided, including the public key of the local
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// signing key. If nonces of other parties are already known, they can be
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// submitted as well to reduce the number of method calls necessary later on.
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func (s *mockSigner) MuSig2CreateSession(context.Context, input.MuSig2Version,
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*keychain.KeyLocator, [][]byte, ...lndclient.MuSig2SessionOpts) (
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*input.MuSig2SessionInfo, error) {
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const testPubKey = "F9308A019258C31049344F85F89D5229B531C845836F99B08601F113BCE036F9"
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pubKeyBytes, err := hex.DecodeString(testPubKey)
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if err != nil {
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return nil, err
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}
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combinedKey, err := schnorr.ParsePubKey(pubKeyBytes)
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if err != nil {
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return nil, err
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}
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return &input.MuSig2SessionInfo{
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CombinedKey: combinedKey,
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HaveAllNonces: true,
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}, nil
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}
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// MuSig2RegisterNonces registers one or more public nonces of other signing
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// participants for a session identified by its ID. This method returns true
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// once we have all nonces for all other signing participants.
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func (s *mockSigner) MuSig2RegisterNonces(context.Context, [32]byte,
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[][66]byte) (bool, error) {
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return true, nil
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}
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// MuSig2Sign creates a partial signature using the local signing key
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// that was specified when the session was created. This can only be
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// called when all public nonces of all participants are known and have
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// been registered with the session. If this node isn't responsible for
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// combining all the partial signatures, then the cleanup parameter
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// should be set, indicating that the session can be removed from memory
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// once the signature was produced.
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func (s *mockSigner) MuSig2Sign(context.Context, [32]byte, [32]byte,
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bool) ([]byte, error) {
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return nil, nil
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}
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// MuSig2CombineSig combines the given partial signature(s) with the
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// local one, if it already exists. Once a partial signature of all
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// participants is registered, the final signature will be combined and
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// returned.
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func (s *mockSigner) MuSig2CombineSig(context.Context, [32]byte,
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[][]byte) (bool, []byte, error) {
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return true, nil, nil
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}
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// MuSig2Cleanup removes a session from memory to free up resources.
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func (s *mockSigner) MuSig2Cleanup(context.Context, [32]byte) error {
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return nil
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}
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