Golang btcutil.NewAddressPubKey函數代碼示例

func main() {
	// Print header
	fmt.Printf("%64s %34s %34s\n", "Private", "Public", "Public Compressed")

	// Initialise big numbers with small numbers
	count, one := big.NewInt(0), big.NewInt(1)

	// Create a slice to pad our count to 32 bytes
	padded := make([]byte, 32)

	// Loop forever because we're never going to hit the end anyway
	for {
		// Increment our counter
		count.Add(count, one)

		// Copy count value's bytes to padded slice
		copy(padded[32-len(count.Bytes()):], count.Bytes())

		// Get public key
		_, public := btcec.PrivKeyFromBytes(btcec.S256(), padded)

		// Get compressed and uncompressed addresses
		caddr, _ := btcutil.NewAddressPubKey(public.SerializeCompressed(), &btcnet.MainNetParams)
		uaddr, _ := btcutil.NewAddressPubKey(public.SerializeUncompressed(), &btcnet.MainNetParams)

		// Print keys
		fmt.Printf("%x %34s %34s\n", padded, uaddr.EncodeAddress(), caddr.EncodeAddress())
	}
}

func compute(count *big.Int) (keys [ResultsPerPage]Key, length int) {
	var padded [32]byte

	var i int
	for i = 0; i < ResultsPerPage; i++ {
		// Increment our counter
		count.Add(count, one)

		// Check to make sure we're not out of range
		if count.Cmp(total) > 0 {
			break
		}

		// Copy count value's bytes to padded slice
		copy(padded[32-len(count.Bytes()):], count.Bytes())

		// Get private and public keys
		privKey, public := btcec.PrivKeyFromBytes(btcec.S256(), padded[:])

		// Get compressed and uncompressed addresses for public key
		caddr, _ := btcutil.NewAddressPubKey(public.SerializeCompressed(), &btcnet.MainNetParams)
		uaddr, _ := btcutil.NewAddressPubKey(public.SerializeUncompressed(), &btcnet.MainNetParams)

		// Encode addresses
		wif, _ := btcutil.NewWIF(privKey, &btcnet.MainNetParams, false)
		keys[i].private = wif.String()
		keys[i].number = count.String()
		keys[i].compressed = caddr.EncodeAddress()
		keys[i].uncompressed = uaddr.EncodeAddress()
	}
	return keys, i
}

// keyToAddr maps the passed private to corresponding p2pkh address.
func keyToAddr(key *btcec.PrivateKey, net *chaincfg.Params) (btcutil.Address, error) {
	serializedKey := key.PubKey().SerializeCompressed()
	pubKeyAddr, err := btcutil.NewAddressPubKey(serializedKey, net)
	if err != nil {
		return nil, err
	}
	return pubKeyAddr.AddressPubKeyHash(), nil
}

// newAddressPubKey returns a new btcutil.AddressPubKey from the provided
// serialized public key.  It panics if an error occurs.  This is only used in
// the tests as a helper since the only way it can fail is if there is an error
// in the test source code.
func newAddressPubKey(serializedPubKey []byte) btcutil.Address {
	addr, err := btcutil.NewAddressPubKey(serializedPubKey,
		&chaincfg.MainNetParams)
	if err != nil {
		panic("invalid public key in test source")
	}

	return addr
}

// DepositScript constructs and returns a multi-signature redemption script where
// a certain number (Series.reqSigs) of the public keys belonging to the series
// with the given ID are required to sign the transaction for it to be successful.
func (p *Pool) DepositScript(seriesID uint32, branch Branch, index Index) ([]byte, error) {
	series := p.Series(seriesID)
	if series == nil {
		str := fmt.Sprintf("series #%d does not exist", seriesID)
		return nil, newError(ErrSeriesNotExists, str, nil)
	}

	pubKeys, err := branchOrder(series.publicKeys, branch)
	if err != nil {
		return nil, err
	}

	pks := make([]*btcutil.AddressPubKey, len(pubKeys))
	for i, key := range pubKeys {
		child, err := key.Child(uint32(index))
		// TODO: implement getting the next index until we find a valid one,
		// in case there is a hdkeychain.ErrInvalidChild.
		if err != nil {
			str := fmt.Sprintf("child #%d for this pubkey %d does not exist", index, i)
			return nil, newError(ErrKeyChain, str, err)
		}
		pubkey, err := child.ECPubKey()
		if err != nil {
			str := fmt.Sprintf("child #%d for this pubkey %d does not exist", index, i)
			return nil, newError(ErrKeyChain, str, err)
		}
		pks[i], err = btcutil.NewAddressPubKey(pubkey.SerializeCompressed(),
			p.manager.ChainParams())
		if err != nil {
			str := fmt.Sprintf(
				"child #%d for this pubkey %d could not be converted to an address",
				index, i)
			return nil, newError(ErrKeyChain, str, err)
		}
	}

	script, err := txscript.MultiSigScript(pks, int(series.reqSigs))
	if err != nil {
		str := fmt.Sprintf("error while making multisig script hash, %d", len(pks))
		return nil, newError(ErrScriptCreation, str, err)
	}

	return script, nil
}

// newBobNode generates a test "ln node" to interact with Alice (us). For the
// funding transaction, bob has a single output totaling 7BTC. For our basic
// test, he'll fund the channel with 5BTC, leaving 2BTC to the change output.
// TODO(roasbeef): proper handling of change etc.
func newBobNode() (*bobNode, error) {
	// First, parse Bob's priv key in order to obtain a key he'll use for the
	// multi-sig funding transaction.
	privKey, pubKey := btcec.PrivKeyFromBytes(btcec.S256(), bobsPrivKey)

	// Next, generate an output redeemable by bob.
	bobAddr, err := btcutil.NewAddressPubKey(privKey.PubKey().SerializeCompressed(),
		ActiveNetParams)
	if err != nil {
		return nil, err
	}
	bobAddrScript, err := txscript.PayToAddrScript(bobAddr.AddressPubKeyHash())
	if err != nil {
		return nil, err
	}
	prevOut := wire.NewOutPoint(&wire.ShaHash{}, ^uint32(0))
	// TODO(roasbeef): When the chain rpc is hooked in, assert bob's output
	// actually exists and it unspent in the chain.
	bobTxIn := wire.NewTxIn(prevOut, nil)

	// Using bobs priv key above, create a change address he can spend.
	bobChangeOutput := wire.NewTxOut(2*1e8, bobAddrScript)

	// Bob's initial revocation hash is just his private key with the first
	// byte changed...
	var revocation [20]byte
	copy(revocation[:], bobsPrivKey)
	revocation[0] = 0xff

	// His ID is just as creative...
	var id [wire.HashSize]byte
	id[0] = 0xff

	return &bobNode{
		id:               id,
		privKey:          privKey,
		channelKey:       pubKey,
		deliveryAddress:  bobAddr,
		revocation:       revocation,
		delay:            5,
		availableOutputs: []*wire.TxIn{bobTxIn},
		changeOutputs:    []*wire.TxOut{bobChangeOutput},
	}, nil
}

// generateKeyPair generates and stores an ECDSA keypair to a file.
func generateKeyPair(filename string) error {
	// Generate keypairs.
	aKeypair, err := ecdsa.GenerateKey(btcec.S256(), crand.Reader)
	if err != nil {
		return err
	}
	pubkeyBtcec := btcec.PublicKey{aKeypair.PublicKey.Curve,
		aKeypair.PublicKey.X,
		aKeypair.PublicKey.Y}
	keypairBtcec := btcec.PrivateKey{aKeypair.PublicKey, aKeypair.D}

	// Create a map to json marshal
	keypairMap := make(map[string]string)
	keypairMap["pubkey"] = hex.EncodeToString(pubkeyBtcec.SerializeCompressed())
	keypairMap["privkey"] = hex.EncodeToString(keypairBtcec.Serialize())

	// Store the address in case anyone wants to use it for BTC
	pkh, err := btcutil.NewAddressPubKey(pubkeyBtcec.SerializeCompressed(),
		&btcnet.MainNetParams)
	if err != nil {
		return err
	}
	keypairMap["address"] = pkh.EncodeAddress()

	b, err := json.Marshal(keypairMap)
	if err != nil {
		return err
	}

	err = ioutil.WriteFile(filename, b, 0644)
	if err != nil {
		return err
	}

	return nil
}

func TestAddresses(t *testing.T) {
	tests := []struct {
		name    string
		addr    string
		encoded string
		valid   bool
		result  btcutil.Address
		f       func() (btcutil.Address, error)
		net     *chaincfg.Params
	}{
		// Positive P2PKH tests.
		{
			name:    "mainnet p2pkh",
			addr:    "1MirQ9bwyQcGVJPwKUgapu5ouK2E2Ey4gX",
			encoded: "1MirQ9bwyQcGVJPwKUgapu5ouK2E2Ey4gX",
			valid:   true,
			result: btcutil.TstAddressPubKeyHash(
				[ripemd160.Size]byte{
					0xe3, 0x4c, 0xce, 0x70, 0xc8, 0x63, 0x73, 0x27, 0x3e, 0xfc,
					0xc5, 0x4c, 0xe7, 0xd2, 0xa4, 0x91, 0xbb, 0x4a, 0x0e, 0x84},
				chaincfg.MainNetParams.PubKeyHashAddrID),
			f: func() (btcutil.Address, error) {
				pkHash := []byte{
					0xe3, 0x4c, 0xce, 0x70, 0xc8, 0x63, 0x73, 0x27, 0x3e, 0xfc,
					0xc5, 0x4c, 0xe7, 0xd2, 0xa4, 0x91, 0xbb, 0x4a, 0x0e, 0x84}
				return btcutil.NewAddressPubKeyHash(pkHash, &chaincfg.MainNetParams)
			},
			net: &chaincfg.MainNetParams,
		},
		{
			name:    "mainnet p2pkh 2",
			addr:    "12MzCDwodF9G1e7jfwLXfR164RNtx4BRVG",
			encoded: "12MzCDwodF9G1e7jfwLXfR164RNtx4BRVG",
			valid:   true,
			result: btcutil.TstAddressPubKeyHash(
				[ripemd160.Size]byte{
					0x0e, 0xf0, 0x30, 0x10, 0x7f, 0xd2, 0x6e, 0x0b, 0x6b, 0xf4,
					0x05, 0x12, 0xbc, 0xa2, 0xce, 0xb1, 0xdd, 0x80, 0xad, 0xaa},
				chaincfg.MainNetParams.PubKeyHashAddrID),
			f: func() (btcutil.Address, error) {
				pkHash := []byte{
					0x0e, 0xf0, 0x30, 0x10, 0x7f, 0xd2, 0x6e, 0x0b, 0x6b, 0xf4,
					0x05, 0x12, 0xbc, 0xa2, 0xce, 0xb1, 0xdd, 0x80, 0xad, 0xaa}
				return btcutil.NewAddressPubKeyHash(pkHash, &chaincfg.MainNetParams)
			},
			net: &chaincfg.MainNetParams,
		},
		{
			name:    "testnet p2pkh",
			addr:    "mrX9vMRYLfVy1BnZbc5gZjuyaqH3ZW2ZHz",
			encoded: "mrX9vMRYLfVy1BnZbc5gZjuyaqH3ZW2ZHz",
			valid:   true,
			result: btcutil.TstAddressPubKeyHash(
				[ripemd160.Size]byte{
					0x78, 0xb3, 0x16, 0xa0, 0x86, 0x47, 0xd5, 0xb7, 0x72, 0x83,
					0xe5, 0x12, 0xd3, 0x60, 0x3f, 0x1f, 0x1c, 0x8d, 0xe6, 0x8f},
				chaincfg.TestNet3Params.PubKeyHashAddrID),
			f: func() (btcutil.Address, error) {
				pkHash := []byte{
					0x78, 0xb3, 0x16, 0xa0, 0x86, 0x47, 0xd5, 0xb7, 0x72, 0x83,
					0xe5, 0x12, 0xd3, 0x60, 0x3f, 0x1f, 0x1c, 0x8d, 0xe6, 0x8f}
				return btcutil.NewAddressPubKeyHash(pkHash, &chaincfg.TestNet3Params)
			},
			net: &chaincfg.TestNet3Params,
		},

		// Negative P2PKH tests.
		{
			name:  "p2pkh wrong hash length",
			addr:  "",
			valid: false,
			f: func() (btcutil.Address, error) {
				pkHash := []byte{
					0x00, 0x0e, 0xf0, 0x30, 0x10, 0x7f, 0xd2, 0x6e, 0x0b, 0x6b,
					0xf4, 0x05, 0x12, 0xbc, 0xa2, 0xce, 0xb1, 0xdd, 0x80, 0xad,
					0xaa}
				return btcutil.NewAddressPubKeyHash(pkHash, &chaincfg.MainNetParams)
			},
		},
		{
			name:  "p2pkh bad checksum",
			addr:  "1MirQ9bwyQcGVJPwKUgapu5ouK2E2Ey4gY",
			valid: false,
		},

		// Positive P2SH tests.
		{
			// Taken from transactions:
			// output: 3c9018e8d5615c306d72397f8f5eef44308c98fb576a88e030c25456b4f3a7ac
			// input:  837dea37ddc8b1e3ce646f1a656e79bbd8cc7f558ac56a169626d649ebe2a3ba.
			name:    "mainnet p2sh",
			addr:    "3QJmV3qfvL9SuYo34YihAf3sRCW3qSinyC",
			encoded: "3QJmV3qfvL9SuYo34YihAf3sRCW3qSinyC",
			valid:   true,
			result: btcutil.TstAddressScriptHash(
				[ripemd160.Size]byte{
					0xf8, 0x15, 0xb0, 0x36, 0xd9, 0xbb, 0xbc, 0xe5, 0xe9, 0xf2,
					0xa0, 0x0a, 0xbd, 0x1b, 0xf3, 0xdc, 0x91, 0xe9, 0x55, 0x10},
				chaincfg.MainNetParams.ScriptHashAddrID),
			f: func() (btcutil.Address, error) {
//.........這裏部分代碼省略.........

func TestOpenChannelEncodeDecode(t *testing.T) {
	teardown, manager := createTestManager(t)
	defer teardown()

	privKey, pubKey := btcec.PrivKeyFromBytes(btcec.S256(), key[:])
	addr, err := btcutil.NewAddressPubKey(pubKey.SerializeCompressed(), ActiveNetParams)
	if err != nil {
		t.Fatalf("unable to create delivery address")
	}

	script, err := txscript.MultiSigScript([]*btcutil.AddressPubKey{addr, addr}, 2)
	if err != nil {
		t.Fatalf("unable to create redeemScript")
	}

	state := OpenChannel{
		TheirLNID:              id,
		ChanID:                 id,
		MinFeePerKb:            btcutil.Amount(5000),
		OurCommitKey:           privKey,
		TheirCommitKey:         pubKey,
		Capacity:               btcutil.Amount(10000),
		OurBalance:             btcutil.Amount(3000),
		TheirBalance:           btcutil.Amount(7000),
		TheirCommitTx:          testTx,
		OurCommitTx:            testTx,
		FundingTx:              testTx,
		MultiSigKey:            privKey,
		FundingRedeemScript:    script,
		TheirCurrentRevocation: rev,
		OurDeliveryAddress:     addr,
		TheirDeliveryAddress:   addr,
		CsvDelay:               5,
		NumUpdates:             1,
		TotalSatoshisSent:      1,
		TotalSatoshisReceived:  2,
		CreationTime:           time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC),
	}

	var b bytes.Buffer
	if err := state.Encode(&b, manager); err != nil {
		t.Fatalf("unable to encode channel state: %v", err)
	}

	reader := bytes.NewReader(b.Bytes())
	newState := &OpenChannel{}
	if err := newState.Decode(reader, manager); err != nil {
		t.Fatalf("unable to decode channel state: %v", err)
	}

	// The decoded channel state should be identical to what we stored
	// above.
	if !bytes.Equal(state.TheirLNID[:], newState.TheirLNID[:]) {
		t.Fatalf("their id doesn't match")
	}
	if !bytes.Equal(state.ChanID[:], newState.ChanID[:]) {
		t.Fatalf("chan id's don't match")
	}
	if state.MinFeePerKb != newState.MinFeePerKb {
		t.Fatalf("fee/kb doens't match")
	}

	if !bytes.Equal(state.OurCommitKey.Serialize(),
		newState.OurCommitKey.Serialize()) {
		t.Fatalf("our commit key dont't match")
	}
	if !bytes.Equal(state.TheirCommitKey.SerializeCompressed(),
		newState.TheirCommitKey.SerializeCompressed()) {
		t.Fatalf("their commit key dont't match")
	}

	if state.Capacity != newState.Capacity {
		t.Fatalf("capacity doesn't match")
	}
	if state.OurBalance != newState.OurBalance {
		t.Fatalf("our balance doesn't match")
	}
	if state.TheirBalance != newState.TheirBalance {
		t.Fatalf("their balance doesn't match")
	}

	var b1, b2 bytes.Buffer
	if err := state.TheirCommitTx.Serialize(&b1); err != nil {
		t.Fatalf("unable to serialize transaction")
	}
	if err := newState.TheirCommitTx.Serialize(&b2); err != nil {
		t.Fatalf("unable to serialize transaction")
	}
	if !bytes.Equal(b1.Bytes(), b2.Bytes()) {
		t.Fatalf("theirCommitTx doesn't match")
	}

	b1.Reset()
	b2.Reset()

	if err := state.OurCommitTx.Serialize(&b1); err != nil {
		t.Fatalf("unable to serialize transaction")
	}
	if err := newState.OurCommitTx.Serialize(&b2); err != nil {
		t.Fatalf("unable to serialize transaction")
//.........這裏部分代碼省略.........

// ExtractPkScriptAddrs returns the type of script, addresses and required
// signatures associated with the passed PkScript.  Note that it only works for
// 'standard' transaction script types.  Any data such as public keys which are
// invalid are omitted from the results.
func ExtractPkScriptAddrs(pkScript []byte, chainParams *chaincfg.Params) (ScriptClass, []btcutil.Address, int, error) {
	var addrs []btcutil.Address
	var requiredSigs int

	// No valid addresses or required signatures if the script doesn't
	// parse.
	pops, err := parseScript(pkScript)
	if err != nil {
		return NonStandardTy, nil, 0, err
	}

	scriptClass := typeOfScript(pops)
	switch scriptClass {
	case PubKeyHashTy:
		// A pay-to-pubkey-hash script is of the form:
		//  OP_DUP OP_HASH160 <hash> OP_EQUALVERIFY OP_CHECKSIG
		// Therefore the pubkey hash is the 3rd item on the stack.
		// Skip the pubkey hash if it's invalid for some reason.
		requiredSigs = 1
		addr, err := btcutil.NewAddressPubKeyHash(pops[2].data,
			chainParams)
		if err == nil {
			addrs = append(addrs, addr)
		}

	case PubKeyTy:
		// A pay-to-pubkey script is of the form:
		//  <pubkey> OP_CHECKSIG
		// Therefore the pubkey is the first item on the stack.
		// Skip the pubkey if it's invalid for some reason.
		requiredSigs = 1
		addr, err := btcutil.NewAddressPubKey(pops[0].data, chainParams)
		if err == nil {
			addrs = append(addrs, addr)
		}

	case ScriptHashTy:
		// A pay-to-script-hash script is of the form:
		//  OP_HASH160 <scripthash> OP_EQUAL
		// Therefore the script hash is the 2nd item on the stack.
		// Skip the script hash if it's invalid for some reason.
		requiredSigs = 1
		addr, err := btcutil.NewAddressScriptHashFromHash(pops[1].data,
			chainParams)
		if err == nil {
			addrs = append(addrs, addr)
		}

	case MultiSigTy:
		// A multi-signature script is of the form:
		//  <numsigs> <pubkey> <pubkey> <pubkey>... <numpubkeys> OP_CHECKMULTISIG
		// Therefore the number of required signatures is the 1st item
		// on the stack and the number of public keys is the 2nd to last
		// item on the stack.
		requiredSigs = asSmallInt(pops[0].opcode)
		numPubKeys := asSmallInt(pops[len(pops)-2].opcode)

		// Extract the public keys while skipping any that are invalid.
		addrs = make([]btcutil.Address, 0, numPubKeys)
		for i := 0; i < numPubKeys; i++ {
			addr, err := btcutil.NewAddressPubKey(pops[i+1].data,
				chainParams)
			if err == nil {
				addrs = append(addrs, addr)
			}
		}

	case NullDataTy:
		// Null data transactions have no addresses or required
		// signatures.

	case NonStandardTy:
		// Don't attempt to extract addresses or required signatures for
		// nonstandard transactions.
	}

	return scriptClass, addrs, requiredSigs, nil
}

// TestMultiSigScript ensures the MultiSigScript function returns the expected
// scripts and errors.
func TestMultiSigScript(t *testing.T) {
	t.Parallel()

	//  mainnet p2pk 13CG6SJ3yHUXo4Cr2RY4THLLJrNFuG3gUg
	p2pkCompressedMain, err := btcutil.NewAddressPubKey(decodeHex("02192d7"+
		"4d0cb94344c9569c2e77901573d8d7903c3ebec3a957724895dca52c6b4"),
		&chaincfg.MainNetParams)
	if err != nil {
		t.Errorf("Unable to create pubkey address (compressed): %v",
			err)
		return
	}
	p2pkCompressed2Main, err := btcutil.NewAddressPubKey(decodeHex("03b0bd"+
		"634234abbb1ba1e986e884185c61cf43e001f9137f23c2c409273eb16e65"),
		&chaincfg.MainNetParams)
	if err != nil {
		t.Errorf("Unable to create pubkey address (compressed 2): %v",
			err)
		return
	}

	p2pkUncompressedMain, err := btcutil.NewAddressPubKey(decodeHex("0411d"+
		"b93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5c"+
		"b2e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b41"+
		"2a3"), &chaincfg.MainNetParams)
	if err != nil {
		t.Errorf("Unable to create pubkey address (uncompressed): %v",
			err)
		return
	}

	tests := []struct {
		keys      []*btcutil.AddressPubKey
		nrequired int
		expected  string
		err       error
	}{
		{
			[]*btcutil.AddressPubKey{
				p2pkCompressedMain,
				p2pkCompressed2Main,
			},
			1,
			"1 DATA_33 0x02192d74d0cb94344c9569c2e77901573d8d7903c" +
				"3ebec3a957724895dca52c6b4 DATA_33 0x03b0bd634" +
				"234abbb1ba1e986e884185c61cf43e001f9137f23c2c4" +
				"09273eb16e65 2 CHECKMULTISIG",
			nil,
		},
		{
			[]*btcutil.AddressPubKey{
				p2pkCompressedMain,
				p2pkCompressed2Main,
			},
			2,
			"2 DATA_33 0x02192d74d0cb94344c9569c2e77901573d8d7903c" +
				"3ebec3a957724895dca52c6b4 DATA_33 0x03b0bd634" +
				"234abbb1ba1e986e884185c61cf43e001f9137f23c2c4" +
				"09273eb16e65 2 CHECKMULTISIG",
			nil,
		},
		{
			[]*btcutil.AddressPubKey{
				p2pkCompressedMain,
				p2pkCompressed2Main,
			},
			3,
			"",
			txscript.ErrBadNumRequired,
		},
		{
			[]*btcutil.AddressPubKey{
				p2pkUncompressedMain,
			},
			1,
			"1 DATA_65 0x0411db93e1dcdb8a016b49840f8c53bc1eb68a382" +
				"e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf97444" +
				"64f82e160bfa9b8b64f9d4c03f999b8643f656b412a3 " +
				"1 CHECKMULTISIG",
			nil,
		},
		{
			[]*btcutil.AddressPubKey{
				p2pkUncompressedMain,
			},
			2,
			"",
			txscript.ErrBadNumRequired,
		},
	}

	t.Logf("Running %d tests", len(tests))
	for i, test := range tests {
		script, err := txscript.MultiSigScript(test.keys,
			test.nrequired)
		if err != test.err {
			t.Errorf("MultiSigScript #%d unexpected error - "+
				"got %v, want %v", i, err, test.err)
//.........這裏部分代碼省略.........

// TestPayToAddrScript ensures the PayToAddrScript function generates the
// correct scripts for the various types of addresses.
func TestPayToAddrScript(t *testing.T) {
	t.Parallel()

	// 1MirQ9bwyQcGVJPwKUgapu5ouK2E2Ey4gX
	p2pkhMain, err := btcutil.NewAddressPubKeyHash(decodeHex("e34cce70c863"+
		"73273efcc54ce7d2a491bb4a0e84"), &chaincfg.MainNetParams)
	if err != nil {
		t.Errorf("Unable to create public key hash address: %v", err)
		return
	}

	// Taken from transaction:
	// b0539a45de13b3e0403909b8bd1a555b8cbe45fd4e3f3fda76f3a5f52835c29d
	p2shMain, _ := btcutil.NewAddressScriptHashFromHash(decodeHex("e8c300"+
		"c87986efa84c37c0519929019ef86eb5b4"), &chaincfg.MainNetParams)
	if err != nil {
		t.Errorf("Unable to create script hash address: %v", err)
		return
	}

	//  mainnet p2pk 13CG6SJ3yHUXo4Cr2RY4THLLJrNFuG3gUg
	p2pkCompressedMain, err := btcutil.NewAddressPubKey(decodeHex("02192d74"+
		"d0cb94344c9569c2e77901573d8d7903c3ebec3a957724895dca52c6b4"),
		&chaincfg.MainNetParams)
	if err != nil {
		t.Errorf("Unable to create pubkey address (compressed): %v",
			err)
		return
	}
	p2pkCompressed2Main, err := btcutil.NewAddressPubKey(decodeHex("03b0bd"+
		"634234abbb1ba1e986e884185c61cf43e001f9137f23c2c409273eb16e65"),
		&chaincfg.MainNetParams)
	if err != nil {
		t.Errorf("Unable to create pubkey address (compressed 2): %v",
			err)
		return
	}

	p2pkUncompressedMain, err := btcutil.NewAddressPubKey(decodeHex("0411db"+
		"93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5cb2"+
		"e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b412a3"),
		&chaincfg.MainNetParams)
	if err != nil {
		t.Errorf("Unable to create pubkey address (uncompressed): %v",
			err)
		return
	}

	tests := []struct {
		in       btcutil.Address
		expected string
		err      error
	}{
		// pay-to-pubkey-hash address on mainnet
		{
			p2pkhMain,
			"DUP HASH160 DATA_20 0xe34cce70c86373273efcc54ce7d2a4" +
				"91bb4a0e8488 CHECKSIG",
			nil,
		},
		// pay-to-script-hash address on mainnet
		{
			p2shMain,
			"HASH160 DATA_20 0xe8c300c87986efa84c37c0519929019ef8" +
				"6eb5b4 EQUAL",
			nil,
		},
		// pay-to-pubkey address on mainnet. compressed key.
		{
			p2pkCompressedMain,
			"DATA_33 0x02192d74d0cb94344c9569c2e77901573d8d7903c3" +
				"ebec3a957724895dca52c6b4 CHECKSIG",
			nil,
		},
		// pay-to-pubkey address on mainnet. compressed key (other way).
		{
			p2pkCompressed2Main,
			"DATA_33 0x03b0bd634234abbb1ba1e986e884185c61cf43e001" +
				"f9137f23c2c409273eb16e65 CHECKSIG",
			nil,
		},
		// pay-to-pubkey address on mainnet. uncompressed key.
		{
			p2pkUncompressedMain,
			"DATA_65 0x0411db93e1dcdb8a016b49840f8c53bc1eb68a382e" +
				"97b1482ecad7b148a6909a5cb2e0eaddfb84ccf97444" +
				"64f82e160bfa9b8b64f9d4c03f999b8643f656b412a3 " +
				"CHECKSIG",
			nil,
		},

		// Supported address types with nil pointers.
		{(*btcutil.AddressPubKeyHash)(nil), "", txscript.ErrUnsupportedAddress},
		{(*btcutil.AddressScriptHash)(nil), "", txscript.ErrUnsupportedAddress},
		{(*btcutil.AddressPubKey)(nil), "", txscript.ErrUnsupportedAddress},

		// Unsupported address type.
		{&bogusAddress{}, "", txscript.ErrUnsupportedAddress},
//.........這裏部分代碼省略.........

// newBobNode generates a test "ln node" to interact with Alice (us). For the
// funding transaction, bob has a single output totaling 7BTC. For our basic
// test, he'll fund the channel with 5BTC, leaving 2BTC to the change output.
// TODO(roasbeef): proper handling of change etc.
func newBobNode(miner *rpctest.Harness) (*bobNode, error) {
	// First, parse Bob's priv key in order to obtain a key he'll use for the
	// multi-sig funding transaction.
	privKey, pubKey := btcec.PrivKeyFromBytes(btcec.S256(), bobsPrivKey)

	// Next, generate an output redeemable by bob.
	bobAddrPk, err := btcutil.NewAddressPubKey(privKey.PubKey().SerializeCompressed(),
		miner.ActiveNet)
	if err != nil {
		return nil, err
	}
	bobAddr := bobAddrPk.AddressPubKeyHash()
	bobAddrScript, err := txscript.PayToAddrScript(bobAddr)
	if err != nil {
		return nil, err
	}

	// Give bobNode one 7 BTC output for use in creating channels.
	outputMap := map[string]btcutil.Amount{
		bobAddr.String(): btcutil.Amount(7e8),
	}
	mainTxid, err := miner.CoinbaseSpend(outputMap)
	if err != nil {
		return nil, err
	}

	// Mine a block in order to include the above output in a block. During
	// the reservation workflow, we currently test to ensure that the funding
	// output we're given actually exists.
	if _, err := miner.Node.Generate(1); err != nil {
		return nil, err
	}

	// Grab the transaction in order to locate the output index to Bob.
	tx, err := miner.Node.GetRawTransaction(mainTxid)
	if err != nil {
		return nil, err
	}
	found, index := findScriptOutputIndex(tx.MsgTx(), bobAddrScript)
	if !found {
		return nil, fmt.Errorf("output to bob never created")
	}

	prevOut := wire.NewOutPoint(mainTxid, index)
	// TODO(roasbeef): When the chain rpc is hooked in, assert bob's output
	// actually exists and it unspent in the chain.
	bobTxIn := wire.NewTxIn(prevOut, nil)

	// Using bobs priv key above, create a change output he can spend.
	bobChangeOutput := wire.NewTxOut(2*1e8, bobAddrScript)

	// Bob's initial revocation hash is just his private key with the first
	// byte changed...
	var revocation [20]byte
	copy(revocation[:], bobsPrivKey)
	revocation[0] = 0xff

	// His ID is just as creative...
	var id [wire.HashSize]byte
	id[0] = 0xff

	return &bobNode{
		id:               id,
		privKey:          privKey,
		channelKey:       pubKey,
		deliveryAddress:  bobAddr,
		revocation:       revocation,
		delay:            5,
		availableOutputs: []*wire.TxIn{bobTxIn},
		changeOutputs:    []*wire.TxOut{bobChangeOutput},
	}, nil
}

func loadTestCredits(w *LightningWallet, numOutputs, btcPerOutput int) error {
	// Import the priv key (converting to WIF) above that controls all our
	// available outputs.
	privKey, _ := btcec.PrivKeyFromBytes(btcec.S256(), testWalletPrivKey)
	if err := w.Unlock(privPass, time.Duration(0)); err != nil {
		return err
	}
	bs := &waddrmgr.BlockStamp{Hash: *genBlockHash(1), Height: 1}
	wif, err := btcutil.NewWIF(privKey, ActiveNetParams, true)
	if err != nil {
		return err
	}
	if _, err := w.ImportPrivateKey(wif, bs, false); err != nil {
		return nil
	}
	if err := w.Manager.SetSyncedTo(&waddrmgr.BlockStamp{int32(1), *genBlockHash(1)}); err != nil {
		return err
	}

	blk := wtxmgr.BlockMeta{wtxmgr.Block{Hash: *genBlockHash(2), Height: 2}, time.Now()}

	// Create a simple P2PKH pubkey script spendable by Alice. For simplicity
	// all of Alice's spendable funds will reside in this output.
	satosihPerOutput := int64(btcPerOutput * 1e8)
	walletAddr, err := btcutil.NewAddressPubKey(privKey.PubKey().SerializeCompressed(),
		ActiveNetParams)
	if err != nil {
		return err
	}
	walletScriptCredit, err := txscript.PayToAddrScript(walletAddr.AddressPubKeyHash())
	if err != nil {
		return err
	}

	// Create numOutputs outputs spendable by our wallet each holding btcPerOutput
	// in satoshis.
	tx := wire.NewMsgTx()
	prevOut := wire.NewOutPoint(genBlockHash(999), 1)
	txIn := wire.NewTxIn(prevOut, []byte{txscript.OP_0, txscript.OP_0})
	tx.AddTxIn(txIn)
	for i := 0; i < numOutputs; i++ {
		tx.AddTxOut(wire.NewTxOut(satosihPerOutput, walletScriptCredit))
	}
	txCredit, err := wtxmgr.NewTxRecordFromMsgTx(tx, time.Now())
	if err != nil {
		return err
	}

	if err := addTestTx(w, txCredit, &blk); err != nil {
		return err
	}
	if err := w.Manager.SetSyncedTo(&waddrmgr.BlockStamp{int32(2), *genBlockHash(2)}); err != nil {
		return err
	}

	// Make the wallet think it's been synced to block 10. This way the
	// outputs we added above will have sufficient confirmations
	// (hard coded to 6 atm).
	for i := 3; i < 10; i++ {
		sha := *genBlockHash(i)
		if err := w.Manager.SetSyncedTo(&waddrmgr.BlockStamp{int32(i), sha}); err != nil {
			return err
		}
	}

	return nil
}

func TestSignTxOutput(t *testing.T) {
	t.Parallel()

	// make key
	// make script based on key.
	// sign with magic pixie dust.
	hashTypes := []SigHashType{
		SigHashOld, // no longer used but should act like all
		SigHashAll,
		SigHashNone,
		SigHashSingle,
		SigHashAll | SigHashAnyOneCanPay,
		SigHashNone | SigHashAnyOneCanPay,
		SigHashSingle | SigHashAnyOneCanPay,
	}
	tx := &wire.MsgTx{
		Version: 1,
		TxIn: []*wire.TxIn{
			{
				PreviousOutPoint: wire.OutPoint{
					Hash:  chainhash.Hash{},
					Index: 0,
				},
				Sequence: 4294967295,
			},
			{
				PreviousOutPoint: wire.OutPoint{
					Hash:  chainhash.Hash{},
					Index: 1,
				},
				Sequence: 4294967295,
			},
			{
				PreviousOutPoint: wire.OutPoint{
					Hash:  chainhash.Hash{},
					Index: 2,
				},
				Sequence: 4294967295,
			},
		},
		TxOut: []*wire.TxOut{
			{
				Value: 1,
			},
			{
				Value: 2,
			},
			{
				Value: 3,
			},
		},
		LockTime: 0,
	}

	// Pay to Pubkey Hash (uncompressed)
	for _, hashType := range hashTypes {
		for i := range tx.TxIn {
			msg := fmt.Sprintf("%d:%d", hashType, i)
			key, err := btcec.NewPrivateKey(btcec.S256())
			if err != nil {
				t.Errorf("failed to make privKey for %s: %v",
					msg, err)
				break
			}

			pk := (*btcec.PublicKey)(&key.PublicKey).
				SerializeUncompressed()
			address, err := btcutil.NewAddressPubKeyHash(
				btcutil.Hash160(pk), &chaincfg.TestNet3Params)
			if err != nil {
				t.Errorf("failed to make address for %s: %v",
					msg, err)
				break
			}

			pkScript, err := PayToAddrScript(address)
			if err != nil {
				t.Errorf("failed to make pkscript "+
					"for %s: %v", msg, err)
			}

			if err := signAndCheck(msg, tx, i, pkScript, hashType,
				mkGetKey(map[string]addressToKey{
					address.EncodeAddress(): {key, false},
				}), mkGetScript(nil), nil); err != nil {
				t.Error(err)
				break
			}
		}
	}

	// Pay to Pubkey Hash (uncompressed) (merging with correct)
	for _, hashType := range hashTypes {
		for i := range tx.TxIn {
			msg := fmt.Sprintf("%d:%d", hashType, i)
			key, err := btcec.NewPrivateKey(btcec.S256())
			if err != nil {
				t.Errorf("failed to make privKey for %s: %v",
					msg, err)
				break
//.........這裏部分代碼省略.........