@Test
public void deterministicUpgradeUnencrypted() throws Exception {
// Check that a group that contains only random keys has its HD chain created using the private
// key bytes of
// the oldest random key, so upgrading the same wallet twice gives the same outcome.
group = new KeyChainGroup(params);
group.setLookaheadSize(LOOKAHEAD_SIZE); // Don't want slow tests.
ECKey key1 = new ECKey();
Utils.rollMockClock(86400);
ECKey key2 = new ECKey();
group.importKeys(key2, key1);
List<Protos.Key> protobufs = group.serializeToProtobuf();
group.upgradeToDeterministic(0, null);
assertFalse(group.isDeterministicUpgradeRequired());
DeterministicKey dkey1 = group.freshKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
DeterministicSeed seed1 = group.getActiveKeyChain().getSeed();
assertNotNull(seed1);
group = KeyChainGroup.fromProtobufUnencrypted(params, protobufs);
group.upgradeToDeterministic(0, null); // Should give same result as last time.
DeterministicKey dkey2 = group.freshKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
DeterministicSeed seed2 = group.getActiveKeyChain().getSeed();
assertEquals(seed1, seed2);
assertEquals(dkey1, dkey2);
// Check we used the right (oldest) key despite backwards import order.
byte[] truncatedBytes = Arrays.copyOfRange(key1.getSecretBytes(), 0, 16);
assertArrayEquals(seed1.getEntropyBytes(), truncatedBytes);
}
@Test
public void constructFromSeed() throws Exception {
ECKey key1 = group.freshKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
final DeterministicSeed seed = checkNotNull(group.getActiveKeyChain().getSeed());
KeyChainGroup group2 = new KeyChainGroup(params, seed);
group2.setLookaheadSize(5);
ECKey key2 = group2.freshKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
assertEquals(key1, key2);
}
private KeyChainGroup createMarriedKeyChainGroup() {
byte[] entropy =
Sha256Hash.create("don't use a seed like this in real life".getBytes()).getBytes();
DeterministicSeed seed =
new DeterministicSeed(entropy, "", MnemonicCode.BIP39_STANDARDISATION_TIME_SECS);
KeyChainGroup group = new KeyChainGroup(params, seed, ImmutableList.of(watchingAccountKey));
group.setLookaheadSize(LOOKAHEAD_SIZE);
group.getActiveKeyChain();
return group;
}
@Before
public void setup() {
BriefLogFormatter.init();
Utils.setMockClock();
group = new KeyChainGroup(params);
group.setLookaheadSize(LOOKAHEAD_SIZE); // Don't want slow tests.
group.getActiveKeyChain(); // Force create a chain.
watchingAccountKey = DeterministicKey.deserializeB58(null, XPUB);
}
@Test
public void encryptionWhilstEmpty() throws Exception {
group = new KeyChainGroup(params);
group.setLookaheadSize(5);
KeyCrypterScrypt scrypt = new KeyCrypterScrypt(2);
final KeyParameter aesKey = scrypt.deriveKey("password");
group.encrypt(scrypt, aesKey);
assertTrue(group.freshKey(KeyChain.KeyPurpose.RECEIVE_FUNDS).isEncrypted());
final ECKey key = group.currentKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
group.decrypt(aesKey);
assertFalse(checkNotNull(group.findKeyFromPubKey(key.getPubKey())).isEncrypted());
}
@Test
public void serializeWatching() throws Exception {
group = new KeyChainGroup(params, watchingAccountKey);
group.setLookaheadSize(LOOKAHEAD_SIZE);
group.freshKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
group.freshKey(KeyChain.KeyPurpose.CHANGE);
group.getBloomFilterElementCount(); // Force lookahead.
List<Protos.Key> protoKeys1 = group.serializeToProtobuf();
assertEquals(
3 + (group.getLookaheadSize() + group.getLookaheadThreshold() + 1) * 2, protoKeys1.size());
group = KeyChainGroup.fromProtobufUnencrypted(params, protoKeys1);
assertEquals(
3 + (group.getLookaheadSize() + group.getLookaheadThreshold() + 1) * 2,
group.serializeToProtobuf().size());
}
@Test
public void deterministicUpgradeRotating() throws Exception {
group = new KeyChainGroup(params);
group.setLookaheadSize(LOOKAHEAD_SIZE); // Don't want slow tests.
long now = Utils.currentTimeSeconds();
ECKey key1 = new ECKey();
Utils.rollMockClock(86400);
ECKey key2 = new ECKey();
Utils.rollMockClock(86400);
ECKey key3 = new ECKey();
group.importKeys(key2, key1, key3);
group.upgradeToDeterministic(now + 10, null);
DeterministicSeed seed = group.getActiveKeyChain().getSeed();
assertNotNull(seed);
// Check we used the right key: oldest non rotating.
byte[] truncatedBytes = Arrays.copyOfRange(key2.getSecretBytes(), 0, 16);
assertArrayEquals(seed.getEntropyBytes(), truncatedBytes);
}