@Test public void deriveCoin() throws Exception { DeterministicHierarchy hierarchy = new DeterministicHierarchy(masterKey); DeterministicKey rootKey = hierarchy.get(BitcoinMain.get().getBip44Path(0), false, true); chain = new SimpleHDKeyChain(rootKey); ECKey key1 = chain.getKey(SimpleHDKeyChain.KeyPurpose.RECEIVE_FUNDS); ECKey key2 = chain.getKey(SimpleHDKeyChain.KeyPurpose.RECEIVE_FUNDS); final Address address = new Address(BitcoinMain.get(), "1Fp7CA7ZVqZNFVNQ9TpeqWUas7K28K9zig"); assertEquals(address, key1.toAddress(BitcoinMain.get())); assertEquals( "1AKqkQM4VqyVis6hscj8695WHPCCzgHNY3", key2.toAddress(BitcoinMain.get()).toString()); assertEquals(key1, chain.findKeyFromPubHash(address.getHash160())); assertEquals(key2, chain.findKeyFromPubKey(key2.getPubKey())); key1.sign(Sha256Hash.ZERO_HASH); ECKey key3 = chain.getKey(SimpleHDKeyChain.KeyPurpose.CHANGE); assertEquals( "18YvGiRqXKxrzB72ckfrRSizWeHgwRP94V", key3.toAddress(BitcoinMain.get()).toString()); key3.sign(Sha256Hash.ZERO_HASH); ECKey key4 = chain.getKey(SimpleHDKeyChain.KeyPurpose.CHANGE); assertEquals( "1861TX2MbyPEUrxDQVWgV4Tp9991bK1zpy", key4.toAddress(BitcoinMain.get()).toString()); key4.sign(Sha256Hash.ZERO_HASH); }
public void encryption(SimpleHDKeyChain unencChain) throws UnreadableWalletException { DeterministicKey key1 = unencChain.getKey(KeyChain.KeyPurpose.RECEIVE_FUNDS); SimpleHDKeyChain encChain = unencChain.toEncrypted("open secret"); DeterministicKey encKey1 = encChain.findKeyFromPubKey(key1.getPubKey()); checkEncryptedKeyChain(encChain, key1); // Round-trip to ensure de/serialization works and that we can store two chains and they both // deserialize. List<Protos.Key> serialized = encChain.toProtobuf(); System.out.println(protoToString(serialized)); encChain = SimpleHDKeyChain.fromProtobuf(serialized, encChain.getKeyCrypter()); checkEncryptedKeyChain(encChain, unencChain.findKeyFromPubKey(key1.getPubKey())); DeterministicKey encKey2 = encChain.getKey(KeyChain.KeyPurpose.RECEIVE_FUNDS); // Decrypt and check the keys match. SimpleHDKeyChain decChain = encChain.toDecrypted("open secret"); DeterministicKey decKey1 = decChain.findKeyFromPubHash(encKey1.getPubKeyHash()); DeterministicKey decKey2 = decChain.findKeyFromPubHash(encKey2.getPubKeyHash()); assertEquals(decKey1.getPubKeyPoint(), encKey1.getPubKeyPoint()); assertEquals(decKey2.getPubKeyPoint(), encKey2.getPubKeyPoint()); assertFalse(decKey1.isEncrypted()); assertFalse(decKey2.isEncrypted()); assertNotEquals(encKey1.getParent(), decKey1.getParent()); // parts of a different hierarchy // Check we can once again derive keys from the decrypted chain. decChain.getKey(KeyChain.KeyPurpose.RECEIVE_FUNDS).sign(Sha256Hash.ZERO_HASH); decChain.getKey(KeyChain.KeyPurpose.CHANGE).sign(Sha256Hash.ZERO_HASH); }
public void serializeUnencrypted(SimpleHDKeyChain keyChain, String expectedSerialization) throws UnreadableWalletException { keyChain.setLookaheadSize(10); keyChain.maybeLookAhead(); DeterministicKey key1 = keyChain.getKey(KeyChain.KeyPurpose.RECEIVE_FUNDS); DeterministicKey key2 = keyChain.getKey(KeyChain.KeyPurpose.RECEIVE_FUNDS); DeterministicKey key3 = keyChain.getKey(KeyChain.KeyPurpose.CHANGE); List<Protos.Key> keys = keyChain.toProtobuf(); // 1 master key, 1 account key, 2 internal keys, 3 derived, 20 lookahead and 5 lookahead // threshold. int numItems = 1 // master key/account key + 2 // ext/int parent keys + (keyChain.getLookaheadSize() + keyChain.getLookaheadThreshold()) * 2 // lookahead zone on each chain ; assertEquals(numItems, keys.size()); // Get another key that will be lost during round-tripping, to ensure we can derive it again. DeterministicKey key4 = keyChain.getKey(KeyChain.KeyPurpose.CHANGE); String sb = protoToString(keys); assertEquals(expectedSerialization, sb); // Round trip the data back and forth to check it is preserved. int oldLookaheadSize = keyChain.getLookaheadSize(); keyChain = SimpleHDKeyChain.fromProtobuf(keys, null); assertEquals(expectedSerialization, protoToString(keyChain.toProtobuf())); assertEquals(key1, keyChain.findKeyFromPubHash(key1.getPubKeyHash())); assertEquals(key2, keyChain.findKeyFromPubHash(key2.getPubKeyHash())); assertEquals(key3, keyChain.findKeyFromPubHash(key3.getPubKeyHash())); assertEquals(key4, keyChain.getKey(KeyChain.KeyPurpose.CHANGE)); key1.sign(Sha256Hash.ZERO_HASH); key2.sign(Sha256Hash.ZERO_HASH); key3.sign(Sha256Hash.ZERO_HASH); key4.sign(Sha256Hash.ZERO_HASH); assertEquals(oldLookaheadSize, keyChain.getLookaheadSize()); }
@Test public void derive() throws Exception { ECKey key1 = chain.getKey(SimpleHDKeyChain.KeyPurpose.RECEIVE_FUNDS); ECKey key2 = chain.getKey(SimpleHDKeyChain.KeyPurpose.RECEIVE_FUNDS); final Address address = new Address(UnitTestParams.get(), "n1bQNoEx8uhmCzzA5JPG6sFdtsUQhwiQJV"); assertEquals(address, key1.toAddress(UnitTestParams.get())); assertEquals( "mnHUcqUVvrfi5kAaXJDQzBb9HsWs78b42R", key2.toAddress(UnitTestParams.get()).toString()); assertEquals(key1, chain.findKeyFromPubHash(address.getHash160())); assertEquals(key2, chain.findKeyFromPubKey(key2.getPubKey())); key1.sign(Sha256Hash.ZERO_HASH); ECKey key3 = chain.getKey(SimpleHDKeyChain.KeyPurpose.CHANGE); assertEquals( "mqumHgVDqNzuXNrszBmi7A2UpmwaPMx4HQ", key3.toAddress(UnitTestParams.get()).toString()); key3.sign(Sha256Hash.ZERO_HASH); }