lbcwallet/wallet/wallet_test.go
Josh Rickmar 5edd01e8a5 Unmark addresses as requiring private keys next unlock.
The flag marking chained addresses as needing private keys be
generated on the next wallet unlock was not being correctly unset
after creating and encrypting the private key.  After
serializing/deserializing the wallet, on next unlock, recreating
missing private keys would begin too early in the chain and fail due
to trying to encrypt an already encrypted address.

This change correctly unsets the flag and bumps the version so a
special case can be created for ignoring duplicate encryption attempts
when reading an old wallet file.  Tests have also been added to the
chained pubkey test to test for this error case.
2014-02-04 10:37:28 -05:00

755 lines
23 KiB
Go

/*
* Copyright (c) 2013, 2014 Conformal Systems LLC <info@conformal.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package wallet
import (
"bytes"
"crypto/ecdsa"
"crypto/rand"
"encoding/hex"
"github.com/conformal/btcec"
"github.com/conformal/btcutil"
"github.com/conformal/btcwire"
"github.com/davecgh/go-spew/spew"
"math/big"
"os"
"reflect"
"testing"
)
var _ = spew.Dump
func TestBtcAddressSerializer(t *testing.T) {
kdfp := &kdfParameters{
mem: 1024,
nIter: 5,
}
if _, err := rand.Read(kdfp.salt[:]); err != nil {
t.Error(err.Error())
return
}
key := Key([]byte("banana"), kdfp)
privKey := make([]byte, 32)
if _, err := rand.Read(privKey); err != nil {
t.Error(err.Error())
return
}
addr, err := newBtcAddress(privKey, nil, &BlockStamp{}, true)
if err != nil {
t.Error(err.Error())
return
}
err = addr.encrypt(key)
if err != nil {
t.Error(err.Error())
return
}
file, err := os.Create("btcaddress.bin")
if err != nil {
t.Error(err.Error())
return
}
defer file.Close()
if _, err := addr.WriteTo(file); err != nil {
t.Error(err.Error())
return
}
file.Seek(0, 0)
var readAddr btcAddress
_, err = readAddr.ReadFrom(file)
if err != nil {
t.Error(err.Error())
return
}
if _, err = readAddr.unlock(key); err != nil {
t.Error(err.Error())
return
}
if !reflect.DeepEqual(addr, &readAddr) {
t.Error("Original and read btcAddress differ.")
}
}
func TestWalletCreationSerialization(t *testing.T) {
createdAt := &BlockStamp{}
w1, err := NewWallet("banana wallet", "A wallet for testing.",
[]byte("banana"), btcwire.MainNet, createdAt, 100)
if err != nil {
t.Error("Error creating new wallet: " + err.Error())
return
}
file, err := os.Create("newwallet.bin")
if err != nil {
t.Error(err.Error())
return
}
defer file.Close()
if _, err := w1.WriteTo(file); err != nil {
t.Error("Error writing new wallet: " + err.Error())
return
}
file.Seek(0, 0)
w2 := new(Wallet)
_, err = w2.ReadFrom(file)
if err != nil {
t.Error("Error reading newly written wallet: " + err.Error())
return
}
w1.Lock()
w2.Lock()
if err = w1.Unlock([]byte("banana")); err != nil {
t.Error("Decrypting original wallet failed: " + err.Error())
return
}
if err = w2.Unlock([]byte("banana")); err != nil {
t.Error("Decrypting newly read wallet failed: " + err.Error())
return
}
if !reflect.DeepEqual(w1, w2) {
t.Error("Created and read-in wallets do not match.")
spew.Dump(w1, w2)
return
}
}
func TestChaining(t *testing.T) {
tests := []struct {
name string
cc []byte
origPrivateKey []byte
nextPrivateKeyUncompressed []byte
nextPrivateKeyCompressed []byte
nextPublicKeyUncompressed []byte
nextPublicKeyCompressed []byte
}{
{
name: "chaintest 1",
cc: []byte("3318959fff419ab8b556facb3c429a86"),
origPrivateKey: []byte("5ffc975976eaaa1f7b179f384ebbc053"),
nextPrivateKeyUncompressed: []byte{
0xd3, 0xfe, 0x2e, 0x96, 0x44, 0x12, 0x2d, 0xaa,
0x80, 0x8e, 0x36, 0x17, 0xb5, 0x9f, 0x8c, 0xd2,
0x72, 0x8c, 0xaf, 0xf1, 0xdb, 0xd6, 0x4a, 0x92,
0xd7, 0xc7, 0xee, 0x2b, 0x56, 0x34, 0xe2, 0x87,
},
nextPrivateKeyCompressed: []byte{
0x08, 0x56, 0x7a, 0x1b, 0x89, 0x56, 0x2e, 0xfa,
0xb4, 0x02, 0x59, 0x69, 0x10, 0xc3, 0x60, 0x1f,
0x34, 0xf0, 0x55, 0x02, 0x8a, 0xbf, 0x37, 0xf5,
0x22, 0x80, 0x9f, 0xd2, 0xe5, 0x42, 0x5b, 0x2d,
},
nextPublicKeyUncompressed: []byte{
0x04, 0xdd, 0x70, 0x31, 0xa5, 0xf9, 0x06, 0x70,
0xd3, 0x9a, 0x24, 0x5b, 0xd5, 0x73, 0xdd, 0xb6,
0x15, 0x81, 0x0b, 0x78, 0x19, 0xbc, 0xc8, 0x26,
0xc9, 0x16, 0x86, 0x73, 0xae, 0xe4, 0xc0, 0xed,
0x39, 0x81, 0xb4, 0x86, 0x2d, 0x19, 0x8c, 0x67,
0x9c, 0x93, 0x99, 0xf6, 0xd2, 0x3f, 0xd1, 0x53,
0x9e, 0xed, 0xbd, 0x07, 0xd6, 0x4f, 0xa9, 0x81,
0x61, 0x85, 0x46, 0x84, 0xb1, 0xa0, 0xed, 0xbc,
0xa7,
},
nextPublicKeyCompressed: []byte{
0x02, 0x2c, 0x48, 0x73, 0x37, 0x35, 0x74, 0x7f,
0x05, 0x58, 0xc1, 0x4e, 0x0d, 0x18, 0xc2, 0xbf,
0xcc, 0x83, 0xa2, 0x4d, 0x64, 0xab, 0xba, 0xea,
0xeb, 0x4c, 0xcd, 0x4c, 0x0c, 0x21, 0xc4, 0x30,
0x0f,
},
},
}
for _, test := range tests {
// Create both uncompressed and compressed public keys for original
// private key.
origPubUncompressed := pubkeyFromPrivkey(test.origPrivateKey, false)
origPubCompressed := pubkeyFromPrivkey(test.origPrivateKey, true)
// Create next chained private keys, chained from both the uncompressed
// and compressed pubkeys.
nextPrivUncompressed, err := ChainedPrivKey(test.origPrivateKey,
origPubUncompressed, test.cc)
if err != nil {
t.Errorf("%s: Uncompressed ChainedPrivKey failed: %v", test.name, err)
return
}
nextPrivCompressed, err := ChainedPrivKey(test.origPrivateKey,
origPubCompressed, test.cc)
if err != nil {
t.Errorf("%s: Compressed ChainedPrivKey failed: %v", test.name, err)
return
}
// Verify that the new private keys match the expected values
// in the test case.
if !bytes.Equal(nextPrivUncompressed, test.nextPrivateKeyUncompressed) {
t.Errorf("%s: Next private key (from uncompressed pubkey) does not match expected.\nGot: %s\nExpected: %s",
test.name, spew.Sdump(nextPrivUncompressed), spew.Sdump(test.nextPrivateKeyUncompressed))
return
}
if !bytes.Equal(nextPrivCompressed, test.nextPrivateKeyCompressed) {
t.Errorf("%s: Next private key (from compressed pubkey) does not match expected.\nGot: %s\nExpected: %s",
test.name, spew.Sdump(nextPrivCompressed), spew.Sdump(test.nextPrivateKeyCompressed))
return
}
// Create the next pubkeys generated from the next private keys.
nextPubUncompressedFromPriv := pubkeyFromPrivkey(nextPrivUncompressed, false)
nextPubCompressedFromPriv := pubkeyFromPrivkey(nextPrivCompressed, true)
// Create the next pubkeys by chaining directly off the original
// pubkeys (without using the original's private key).
nextPubUncompressedFromPub, err := ChainedPubKey(origPubUncompressed, test.cc)
if err != nil {
t.Errorf("%s: Uncompressed ChainedPubKey failed: %v", test.name, err)
return
}
nextPubCompressedFromPub, err := ChainedPubKey(origPubCompressed, test.cc)
if err != nil {
t.Errorf("%s: Compressed ChainedPubKey failed: %v", test.name, err)
return
}
// Public keys (used to generate the bitcoin address) MUST match.
if !bytes.Equal(nextPubUncompressedFromPriv, nextPubUncompressedFromPub) {
t.Errorf("%s: Uncompressed public keys do not match.", test.name)
}
if !bytes.Equal(nextPubCompressedFromPriv, nextPubCompressedFromPub) {
t.Errorf("%s: Compressed public keys do not match.", test.name)
}
// Verify that all generated public keys match the expected
// values in the test case.
if !bytes.Equal(nextPubUncompressedFromPub, test.nextPublicKeyUncompressed) {
t.Errorf("%s: Next uncompressed public keys do not match expected value.\nGot: %s\nExpected: %s",
test.name, spew.Sdump(nextPubUncompressedFromPub), spew.Sdump(test.nextPublicKeyUncompressed))
return
}
if !bytes.Equal(nextPubCompressedFromPub, test.nextPublicKeyCompressed) {
t.Errorf("%s: Next compressed public keys do not match expected value.\nGot: %s\nExpected: %s",
test.name, spew.Sdump(nextPubCompressedFromPub), spew.Sdump(test.nextPublicKeyCompressed))
return
}
// Sign data with the next private keys and verify signature with
// the next pubkeys.
pubkeyUncompressed, err := btcec.ParsePubKey(nextPubUncompressedFromPub, btcec.S256())
if err != nil {
t.Errorf("%s: Unable to parse next uncompressed pubkey: %v", test.name, err)
return
}
pubkeyCompressed, err := btcec.ParsePubKey(nextPubCompressedFromPub, btcec.S256())
if err != nil {
t.Errorf("%s: Unable to parse next compressed pubkey: %v", test.name, err)
return
}
privkeyUncompressed := &ecdsa.PrivateKey{
PublicKey: *pubkeyUncompressed,
D: new(big.Int).SetBytes(nextPrivUncompressed),
}
privkeyCompressed := &ecdsa.PrivateKey{
PublicKey: *pubkeyCompressed,
D: new(big.Int).SetBytes(nextPrivCompressed),
}
data := "String to sign."
r, s, err := ecdsa.Sign(rand.Reader, privkeyUncompressed, []byte(data))
if err != nil {
t.Errorf("%s: Unable to sign data with next private key (chained from uncompressed pubkey): %v",
test.name, err)
return
}
ok := ecdsa.Verify(&privkeyUncompressed.PublicKey, []byte(data), r, s)
if !ok {
t.Errorf("%s: ecdsa verification failed for next keypair (chained from uncompressed pubkey).",
test.name)
return
}
r, s, err = ecdsa.Sign(rand.Reader, privkeyCompressed, []byte(data))
if err != nil {
t.Errorf("%s: Unable to sign data with next private key (chained from compressed pubkey): %v",
test.name, err)
return
}
ok = ecdsa.Verify(&privkeyCompressed.PublicKey, []byte(data), r, s)
if !ok {
t.Errorf("%s: ecdsa verification failed for next keypair (chained from compressed pubkey).",
test.name)
return
}
}
}
func TestWalletPubkeyChaining(t *testing.T) {
// Set a reasonable keypool size that isn't too big nor too small for testing.
const keypoolSize = 5
w, err := NewWallet("banana wallet", "A wallet for testing.",
[]byte("banana"), btcwire.MainNet, &BlockStamp{}, keypoolSize)
if err != nil {
t.Error("Error creating new wallet: " + err.Error())
return
}
if !w.IsLocked() {
t.Error("New wallet is not locked.")
}
// Wallet should have a total of 6 addresses, one for the root, plus 5 in
// the keypool with their private keys set. Ask for as many new addresses
// as needed to deplete the pool.
for i := 0; i < keypoolSize; i++ {
_, err := w.NextChainedAddress(&BlockStamp{}, keypoolSize)
if err != nil {
t.Errorf("Error getting next address from keypool: %v", err)
return
}
}
// Get next chained address after depleting the keypool. This will extend
// the chain based on the last pubkey, not privkey.
addrWithoutPrivkey, err := w.NextChainedAddress(&BlockStamp{}, keypoolSize)
if err != nil {
t.Errorf("Failed to extend address chain from pubkey: %v", err)
return
}
// Lookup address info. This should succeed even without the private
// key available.
info, err := w.AddressInfo(addrWithoutPrivkey)
if err != nil {
t.Errorf("Failed to get info about address without private key: %v", err)
return
}
// sanity checks
if !info.Compressed {
t.Errorf("Pubkey should be compressed.")
return
}
if info.Imported {
t.Errorf("Should not be marked as imported.")
return
}
// Try to lookup it's private key. This should fail.
_, err = w.AddressKey(addrWithoutPrivkey)
if err == nil {
t.Errorf("Incorrectly returned nil error for looking up private key for address without one saved.")
return
}
// Deserialize w and serialize into a new wallet. The rest of the checks
// in this test test against both a fresh, as well as an "opened and closed"
// wallet with the missing private key.
serializedWallet := new(bytes.Buffer)
_, err = w.WriteTo(serializedWallet)
if err != nil {
t.Errorf("Error writing wallet with missing private key: %v", err)
return
}
w2 := new(Wallet)
_, err = w2.ReadFrom(serializedWallet)
if err != nil {
t.Errorf("Error reading wallet with missing private key: %v", err)
return
}
// Unlock wallet. This should trigger creating the private key for
// the address.
if err = w.Unlock([]byte("banana")); err != nil {
t.Errorf("Can't unlock original wallet: %v", err)
return
}
if err = w2.Unlock([]byte("banana")); err != nil {
t.Errorf("Can't unlock re-read wallet: %v", err)
return
}
// Same address, better variable name.
addrWithPrivKey := addrWithoutPrivkey
// Try a private key lookup again. The private key should now be available.
key1, err := w.AddressKey(addrWithPrivKey)
if err != nil {
t.Errorf("Private key for original wallet was not created! %v", err)
return
}
key2, err := w2.AddressKey(addrWithPrivKey)
if err != nil {
t.Errorf("Private key for re-read wallet was not created! %v", err)
return
}
// Keys returned by both wallets must match.
if !reflect.DeepEqual(key1, key2) {
t.Errorf("Private keys for address originally created without one mismtach between original and re-read wallet.")
return
}
// Sign some data with the private key, then verify signature with the pubkey.
hash := []byte("hash to sign")
r, s, err := ecdsa.Sign(rand.Reader, key1, hash)
if err != nil {
t.Errorf("Unable to sign hash with the created private key: %v", err)
return
}
pubKeyStr, _ := hex.DecodeString(info.Pubkey)
pubKey, err := btcec.ParsePubKey(pubKeyStr, btcec.S256())
ok := ecdsa.Verify(pubKey, hash, r, s)
if !ok {
t.Errorf("ECDSA verification failed; address's pubkey mismatches the privkey.")
return
}
// Test that normal keypool extension and address creation continues to
// work. With the wallet still unlocked, create a new address. This
// will cause the keypool to refill and return the first address from the
// keypool.
nextAddr, err := w.NextChainedAddress(&BlockStamp{}, keypoolSize)
if err != nil {
t.Errorf("Unable to create next address or refill keypool after finding the privkey: %v", err)
return
}
nextInfo, err := w.AddressInfo(nextAddr)
if err != nil {
t.Errorf("Couldn't get info about the next address in the chain: %v", err)
return
}
nextKey, err := w.AddressKey(nextAddr)
if err != nil {
t.Errorf("Couldn't get private key for the next address in the chain: %v", err)
return
}
// Do an ECDSA signature check here as well, this time for the next
// address after the one made without the private key.
r, s, err = ecdsa.Sign(rand.Reader, nextKey, hash)
if err != nil {
t.Errorf("Unable to sign hash with the created private key: %v", err)
return
}
pubKeyStr, _ = hex.DecodeString(nextInfo.Pubkey)
pubKey, err = btcec.ParsePubKey(pubKeyStr, btcec.S256())
ok = ecdsa.Verify(pubKey, hash, r, s)
if !ok {
t.Errorf("ECDSA verification failed; next address's keypair does not match.")
return
}
// Check that the serialized wallet correctly unmarked the 'needs private
// keys later' flag.
buf := new(bytes.Buffer)
w2.WriteTo(buf)
w2.ReadFrom(buf)
err = w2.Unlock([]byte("banana"))
if err != nil {
t.Errorf("Unlock after serialize/deserialize failed: %v", err)
return
}
}
func TestWatchingWalletExport(t *testing.T) {
const keypoolSize = 10
createdAt := &BlockStamp{}
w, err := NewWallet("banana wallet", "A wallet for testing.",
[]byte("banana"), btcwire.MainNet, createdAt, keypoolSize)
if err != nil {
t.Error("Error creating new wallet: " + err.Error())
return
}
// Maintain a set of the active addresses in the wallet.
activeAddrs := make(map[btcutil.AddressPubKeyHash]struct{})
// Add root address.
activeAddrs[*w.LastChainedAddress()] = struct{}{}
// Get as many new active addresses as necessary to deplete the keypool.
// This is done as we will want to test that new addresses created by
// the watching wallet do not pull from previous public keys in the
// original keypool.
for i := 0; i < keypoolSize; i++ {
apkh, err := w.NextChainedAddress(createdAt, keypoolSize)
if err != nil {
t.Errorf("unable to get next address: %v", err)
return
}
activeAddrs[*apkh] = struct{}{}
}
// Create watching wallet from w.
ww, err := w.ExportWatchingWallet()
if err != nil {
t.Errorf("Could not create watching wallet: %v", err)
return
}
// Verify correctness of wallet flags.
if ww.flags.useEncryption {
t.Errorf("Watching wallet marked as using encryption (but nothing to encrypt).")
return
}
if !ww.flags.watchingOnly {
t.Errorf("Wallet should be watching-only but is not marked so.")
return
}
// Verify that all flags are set as expected.
if ww.keyGenerator.flags.encrypted {
t.Errorf("Watching root address should not be encrypted (nothing to encrypt)")
return
}
if ww.keyGenerator.flags.hasPrivKey {
t.Errorf("Watching root address marked as having a private key.")
return
}
if !ww.keyGenerator.flags.hasPubKey {
t.Errorf("Watching root address marked as missing a public key.")
return
}
if ww.keyGenerator.flags.createPrivKeyNextUnlock {
t.Errorf("Watching root address marked as needing a private key to be generated later.")
return
}
for apkh, addr := range ww.addrMap {
if addr.flags.encrypted {
t.Errorf("Chained address should not be encrypted (nothing to encrypt)")
return
}
if ww.keyGenerator.flags.hasPrivKey {
t.Errorf("Chained address marked as having a private key.")
return
}
if !ww.keyGenerator.flags.hasPubKey {
t.Errorf("Chained address marked as missing a public key.")
return
}
if ww.keyGenerator.flags.createPrivKeyNextUnlock {
t.Errorf("Chained address marked as needing a private key to be generated later.")
return
}
if _, ok := activeAddrs[apkh]; !ok {
t.Errorf("Address from watching wallet not found in original wallet.")
return
}
delete(activeAddrs, apkh)
}
if len(activeAddrs) != 0 {
t.Errorf("%v address(es) were not exported to watching wallet.", len(activeAddrs))
return
}
// Check that the new addresses created by each wallet match. The
// original wallet is unlocked so the keypool is refilled and chained
// addresses use the previous' privkey, not pubkey.
if err := w.Unlock([]byte("banana")); err != nil {
t.Errorf("Unlocking original wallet failed: %v", err)
}
for i := 0; i < keypoolSize; i++ {
addr, err := w.NextChainedAddress(createdAt, keypoolSize)
if err != nil {
t.Errorf("Cannot get next chained address for original wallet: %v", err)
return
}
waddr, err := ww.NextChainedAddress(createdAt, keypoolSize)
if err != nil {
t.Errorf("Cannot get next chained address for watching wallet: %v", err)
return
}
if addr.String() != waddr.String() {
t.Errorf("Next addresses for each wallet do not match eachother.")
return
}
}
// Test that ExtendActiveAddresses for the watching wallet match
// manually requested addresses of the original wallet.
newAddrs := make([]btcutil.Address, 0, keypoolSize)
for i := 0; i < keypoolSize; i++ {
addr, err := w.NextChainedAddress(createdAt, keypoolSize)
if err != nil {
t.Errorf("Cannot get next chained address for original wallet: %v", err)
return
}
newAddrs = append(newAddrs, addr)
}
newWWAddrs, err := ww.ExtendActiveAddresses(keypoolSize, keypoolSize)
if err != nil {
t.Errorf("Cannot extend active addresses for watching wallet: %v", err)
return
}
for i := range newAddrs {
if newAddrs[i].EncodeAddress() != newWWAddrs[i].EncodeAddress() {
t.Errorf("Extended active addresses do not match manually requested addresses.")
return
}
}
// Test ExtendActiveAddresses for the original wallet after manually
// requesting addresses for the watching wallet.
newWWAddrs = make([]btcutil.Address, 0, keypoolSize)
for i := 0; i < keypoolSize; i++ {
addr, err := ww.NextChainedAddress(createdAt, keypoolSize)
if err != nil {
t.Errorf("Cannot get next chained address for watching wallet: %v", err)
return
}
newWWAddrs = append(newWWAddrs, addr)
}
newAddrs, err = w.ExtendActiveAddresses(keypoolSize, keypoolSize)
if err != nil {
t.Errorf("Cannot extend active addresses for original wallet: %v", err)
return
}
for i := range newAddrs {
if newAddrs[i].EncodeAddress() != newWWAddrs[i].EncodeAddress() {
t.Errorf("Extended active addresses do not match manually requested addresses.")
return
}
}
// Test (de)serialization of watching wallet.
buf := new(bytes.Buffer)
_, err = ww.WriteTo(buf)
if err != nil {
t.Errorf("Cannot write watching wallet: %v", err)
return
}
ww2 := new(Wallet)
_, err = ww2.ReadFrom(buf)
if err != nil {
t.Errorf("Cannot read watching wallet: %v", err)
return
}
// Check that (de)serialized watching wallet matches the exported wallet.
if !reflect.DeepEqual(ww, ww2) {
t.Error("Exported and read-in watching wallets do not match.")
return
}
// Verify that nonsensical functions fail with correct error.
if err := ww.Lock(); err != ErrWalletIsWatchingOnly {
t.Errorf("Nonsensical func Lock returned no or incorrect error: %v", err)
return
}
if err := ww.Unlock([]byte("banana")); err != ErrWalletIsWatchingOnly {
t.Errorf("Nonsensical func Unlock returned no or incorrect error: %v", err)
return
}
if _, err := ww.AddressKey(w.keyGenerator.address(ww.net)); err != ErrWalletIsWatchingOnly {
t.Errorf("Nonsensical func AddressKey returned no or incorrect error: %v", err)
return
}
if _, err := ww.ExportWatchingWallet(); err != ErrWalletIsWatchingOnly {
t.Errorf("Nonsensical func ExportWatchingWallet returned no or incorrect error: %v", err)
return
}
if _, err := ww.ImportPrivateKey(make([]byte, 32), true, createdAt); err != ErrWalletIsWatchingOnly {
t.Errorf("Nonsensical func ImportPrivateKey returned no or incorrect error: %v", err)
return
}
}
func TestChangePassphrase(t *testing.T) {
const keypoolSize = 10
createdAt := &BlockStamp{}
w, err := NewWallet("banana wallet", "A wallet for testing.",
[]byte("banana"), btcwire.MainNet, createdAt, keypoolSize)
if err != nil {
t.Error("Error creating new wallet: " + err.Error())
return
}
// Changing the passphrase with a locked wallet must fail with ErrWalletLocked.
if err := w.ChangePassphrase([]byte("potato")); err != ErrWalletLocked {
t.Errorf("Changing passphrase on a locked wallet did not fail correctly: %v", err)
return
}
// Unlock wallet so the passphrase can be changed.
if err := w.Unlock([]byte("banana")); err != nil {
t.Errorf("Cannot unlock: %v", err)
return
}
// Get root address and its private key. This is compared to the private
// key post passphrase change.
rootAddr := w.LastChainedAddress()
rootPrivKey, err := w.AddressKey(rootAddr)
if err != nil {
t.Errorf("Cannot get root address' private key: %v", err)
return
}
// Change passphrase.
if err := w.ChangePassphrase([]byte("potato")); err != nil {
t.Errorf("Changing passhprase failed: %v", err)
return
}
// Wallet should still be unlocked.
if w.IsLocked() {
t.Errorf("Wallet should be unlocked after passphrase change.")
return
}
// Lock it.
if err := w.Lock(); err != nil {
t.Errorf("Cannot lock wallet after passphrase change: %v", err)
return
}
// Unlock with old passphrase. This must fail with ErrWrongPassphrase.
if err := w.Unlock([]byte("banana")); err != ErrWrongPassphrase {
t.Errorf("Unlocking with old passphrases did not fail correctly: %v", err)
return
}
// Unlock with new passphrase. This must succeed.
if err := w.Unlock([]byte("potato")); err != nil {
t.Errorf("Unlocking with new passphrase failed: %v", err)
return
}
// Get root address' private key again.
rootPrivKey2, err := w.AddressKey(rootAddr)
if err != nil {
t.Errorf("Cannot get root address' private key after passphrase change: %v", err)
return
}
// Private keys must match.
if !reflect.DeepEqual(rootPrivKey, rootPrivKey2) {
t.Errorf("Private keys before and after unlock differ.")
return
}
}