Java Code Examples for org.bitcoinj.core.ECKey#sign()
The following examples show how to use
org.bitcoinj.core.ECKey#sign() .
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Example 1
| Source File: DeterministicKeyChainTest.java From bcm-android with GNU General Public License v3.0 | 6 votes |
|
@Test
public void derive() throws Exception {
ECKey key1 = chain.getKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
assertFalse(key1.isPubKeyOnly());
ECKey key2 = chain.getKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
assertFalse(key2.isPubKeyOnly());
final Address address = LegacyAddress.fromBase58(UNITTEST, "n1bQNoEx8uhmCzzA5JPG6sFdtsUQhwiQJV");
assertEquals(address, LegacyAddress.fromKey(UNITTEST, key1));
assertEquals("mnHUcqUVvrfi5kAaXJDQzBb9HsWs78b42R", LegacyAddress.fromKey(UNITTEST, key2).toString());
assertEquals(key1, chain.findKeyFromPubHash(address.getHash()));
assertEquals(key2, chain.findKeyFromPubKey(key2.getPubKey()));
key1.sign(Sha256Hash.ZERO_HASH);
assertFalse(key1.isPubKeyOnly());
ECKey key3 = chain.getKey(KeyChain.KeyPurpose.CHANGE);
assertFalse(key3.isPubKeyOnly());
assertEquals("mqumHgVDqNzuXNrszBmi7A2UpmwaPMx4HQ", LegacyAddress.fromKey(UNITTEST, key3).toString());
key3.sign(Sha256Hash.ZERO_HASH);
assertFalse(key3.isPubKeyOnly());
}
Example 2
| Source File: DeterministicKeyChainTest.java From bcm-android with GNU General Public License v3.0 | 6 votes |
|
@Test
public void deriveAccountOne() throws Exception {
long secs = 1389353062L;
DeterministicKeyChain chain1 = new AccountOneChain(ENTROPY, "", secs);
ECKey key1 = chain1.getKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
ECKey key2 = chain1.getKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
final Address address = LegacyAddress.fromBase58(UNITTEST, "n2nHHRHs7TiZScTuVhZUkzZfTfVgGYwy6X");
assertEquals(address, LegacyAddress.fromKey(UNITTEST, key1));
assertEquals("mnp2j9za5zMuz44vNxrJCXXhZsCdh89QXn", LegacyAddress.fromKey(UNITTEST, key2).toString());
assertEquals(key1, chain1.findKeyFromPubHash(address.getHash()));
assertEquals(key2, chain1.findKeyFromPubKey(key2.getPubKey()));
key1.sign(Sha256Hash.ZERO_HASH);
ECKey key3 = chain1.getKey(KeyChain.KeyPurpose.CHANGE);
assertEquals("mpjRhk13rvV7vmnszcUQVYVQzy4HLTPTQU", LegacyAddress.fromKey(UNITTEST, key3).toString());
key3.sign(Sha256Hash.ZERO_HASH);
}
Example 3
| Source File: TradeWalletService.java From bisq-core with GNU Affero General Public License v3.0 | 6 votes |
|
private void signInput(Transaction transaction, TransactionInput input, int inputIndex) throws SigningException {
checkNotNull(input.getConnectedOutput(), "input.getConnectedOutput() must not be null");
Script scriptPubKey = input.getConnectedOutput().getScriptPubKey();
checkNotNull(wallet);
ECKey sigKey = input.getOutpoint().getConnectedKey(wallet);
checkNotNull(sigKey, "signInput: sigKey must not be null. input.getOutpoint()=" + input.getOutpoint().toString());
if (sigKey.isEncrypted())
checkNotNull(aesKey);
Sha256Hash hash = transaction.hashForSignature(inputIndex, scriptPubKey, Transaction.SigHash.ALL, false);
ECKey.ECDSASignature signature = sigKey.sign(hash, aesKey);
TransactionSignature txSig = new TransactionSignature(signature, Transaction.SigHash.ALL, false);
if (scriptPubKey.isSentToRawPubKey()) {
input.setScriptSig(ScriptBuilder.createInputScript(txSig));
} else if (scriptPubKey.isSentToAddress()) {
input.setScriptSig(ScriptBuilder.createInputScript(txSig, sigKey));
} else {
throw new SigningException("Don't know how to sign for this kind of scriptPubKey: " + scriptPubKey);
}
}
Example 4
| Source File: TradeWalletService.java From bisq with GNU Affero General Public License v3.0 | 6 votes |
|
private void signInput(Transaction transaction, TransactionInput input, int inputIndex) throws SigningException {
checkNotNull(input.getConnectedOutput(), "input.getConnectedOutput() must not be null");
Script scriptPubKey = input.getConnectedOutput().getScriptPubKey();
checkNotNull(wallet);
ECKey sigKey = input.getOutpoint().getConnectedKey(wallet);
checkNotNull(sigKey, "signInput: sigKey must not be null. input.getOutpoint()=" +
input.getOutpoint().toString());
if (sigKey.isEncrypted()) {
checkNotNull(aesKey);
}
Sha256Hash hash = transaction.hashForSignature(inputIndex, scriptPubKey, Transaction.SigHash.ALL, false);
ECKey.ECDSASignature signature = sigKey.sign(hash, aesKey);
TransactionSignature txSig = new TransactionSignature(signature, Transaction.SigHash.ALL, false);
if (scriptPubKey.isSentToRawPubKey()) {
input.setScriptSig(ScriptBuilder.createInputScript(txSig));
} else if (scriptPubKey.isSentToAddress()) {
input.setScriptSig(ScriptBuilder.createInputScript(txSig, sigKey));
} else {
throw new SigningException("Don't know how to sign for this kind of scriptPubKey: " + scriptPubKey);
}
}
Example 5
| Source File: WalletTest.java From bcm-android with GNU General Public License v3.0 | 5 votes |
|
@Test(expected = ECKey.MissingPrivateKeyException.class)
public void watchingWalletWithCreationTime() throws Exception {
DeterministicKey watchKey = wallet.getWatchingKey();
String serialized = watchKey.serializePubB58(UNITTEST);
Wallet watchingWallet = Wallet.fromWatchingKeyB58(UNITTEST, serialized, 1415282801);
DeterministicKey key2 = watchingWallet.freshReceiveKey();
assertEquals(myKey, key2);
ECKey key = wallet.freshKey(KeyChain.KeyPurpose.CHANGE);
key2 = watchingWallet.freshKey(KeyChain.KeyPurpose.CHANGE);
assertEquals(key, key2);
key.sign(Sha256Hash.ZERO_HASH);
key2.sign(Sha256Hash.ZERO_HASH);
}
Example 6
| Source File: Crypto.java From java-sdk with Apache License 2.0 | 5 votes |
|
public static byte[] sign(byte[] msg, ECKey k) throws NoSuchAlgorithmException {
MessageDigest digest = MessageDigest.getInstance("SHA-256");
byte[] msgHash = digest.digest(msg);
ECKey.ECDSASignature signature = k.sign(Sha256Hash.wrap(msgHash));
byte[] result = new byte[64];
System.arraycopy(Utils.bigIntegerToBytes(signature.r, 32), 0, result, 0, 32);
System.arraycopy(Utils.bigIntegerToBytes(signature.s, 32), 0, result, 32, 32);
return result;
}
Example 7
| Source File: TransactionUtil.java From chain33-sdk-java with BSD 2-Clause "Simplified" License | 5 votes |
|
private static Signature btcCoinSign(byte[] data, byte[] privateKey) {
byte[] sha256 = TransactionUtil.Sha256(data);
Sha256Hash sha256Hash = Sha256Hash.wrap(sha256);
ECKey ecKey = ECKey.fromPrivate(privateKey);
ECKey.ECDSASignature ecdsas = ecKey.sign(sha256Hash);
byte[] signByte = ecdsas.encodeToDER();
Signature signature = new Signature();
signature.setPubkey(ecKey.getPubKey());
signature.setSignature(signByte);
signature.setTy(SignType.SECP256K1.getType());
return signature;
}
Example 8
| Source File: EthereumSign.java From token-core-android with Apache License 2.0 | 5 votes |
|
public static SignatureData signAsRecoverable(byte[] value, ECKey ecKey) {
ECKey.ECDSASignature sig = ecKey.sign(Sha256Hash.wrap(value));
// Now we have to work backwards to figure out the recId needed to recover the signature.
int recId = -1;
for (int i = 0; i < 4; i++) {
ECKey recoverKey = ECKey.recoverFromSignature(i, sig, Sha256Hash.wrap(value), false);
if (recoverKey != null && recoverKey.getPubKeyPoint().equals(ecKey.getPubKeyPoint())) {
recId = i;
break;
}
}
if (recId == -1) {
throw new RuntimeException(
"Could not construct a recoverable key. This should never happen.");
}
int headerByte = recId + 27;
// 1 header + 32 bytes for R + 32 bytes for S
byte v = (byte) headerByte;
byte[] r = NumericUtil.bigIntegerToBytesWithZeroPadded(sig.r, 32);
byte[] s = NumericUtil.bigIntegerToBytesWithZeroPadded(sig.s, 32);
return new SignatureData(v, r, s);
}
Example 9
| Source File: Secp256k1Context.java From sawtooth-sdk-java with Apache License 2.0 | 5 votes |
|
/**
* Generate a bitcoin-style compact signature.
*
* @param privateKey ECKey private key
* @param data the raw message bytes
* @return the raw signature bytes
*/
private static byte[] generateCompactSig(final ECKey privateKey, final byte[] data) {
Sha256Hash hash = Sha256Hash.of(data);
ECKey.ECDSASignature sig = privateKey.sign(hash);
byte[] csig = new byte[NUM_SIGNATURE_BYTES];
System.arraycopy(Utils.bigIntegerToBytes(sig.r, HALF_NUM_SIGNATURE_BYTES), 0,
csig, 0, HALF_NUM_SIGNATURE_BYTES);
System.arraycopy(Utils.bigIntegerToBytes(sig.s, HALF_NUM_SIGNATURE_BYTES), 0,
csig, HALF_NUM_SIGNATURE_BYTES, HALF_NUM_SIGNATURE_BYTES);
return csig;
}
Example 10
| Source File: WalletTest.java From green_android with GNU General Public License v3.0 | 5 votes |
|
@Test(expected = ECKey.MissingPrivateKeyException.class)
public void watchingWalletWithCreationTime() throws Exception {
DeterministicKey watchKey = wallet.getWatchingKey();
String serialized = watchKey.serializePubB58(PARAMS);
Wallet watchingWallet = Wallet.fromWatchingKeyB58(PARAMS, serialized, 1415282801);
DeterministicKey key2 = watchingWallet.freshReceiveKey();
assertEquals(myKey, key2);
ECKey key = wallet.freshKey(KeyChain.KeyPurpose.CHANGE);
key2 = watchingWallet.freshKey(KeyChain.KeyPurpose.CHANGE);
assertEquals(key, key2);
key.sign(Sha256Hash.ZERO_HASH);
key2.sign(Sha256Hash.ZERO_HASH);
}
Example 11
| Source File: Crypto.java From java-sdk with Apache License 2.0 | 5 votes |
|
public static byte[] sign(byte[] msg, ECKey k) throws NoSuchAlgorithmException {
MessageDigest digest = MessageDigest.getInstance("SHA-256");
byte[] msgHash = digest.digest(msg);
ECKey.ECDSASignature signature = k.sign(Sha256Hash.wrap(msgHash));
byte[] result = new byte[64];
System.arraycopy(Utils.bigIntegerToBytes(signature.r, 32), 0, result, 0, 32);
System.arraycopy(Utils.bigIntegerToBytes(signature.s, 32), 0, result, 32, 32);
return result;
}
Example 12
| Source File: WalletTest.java From GreenBits with GNU General Public License v3.0 | 5 votes |
|
@Test(expected = ECKey.MissingPrivateKeyException.class)
public void watchingWalletWithCreationTime() throws Exception {
DeterministicKey watchKey = wallet.getWatchingKey();
String serialized = watchKey.serializePubB58(PARAMS);
Wallet watchingWallet = Wallet.fromWatchingKeyB58(PARAMS, serialized, 1415282801);
DeterministicKey key2 = watchingWallet.freshReceiveKey();
assertEquals(myKey, key2);
ECKey key = wallet.freshKey(KeyChain.KeyPurpose.CHANGE);
key2 = watchingWallet.freshKey(KeyChain.KeyPurpose.CHANGE);
assertEquals(key, key2);
key.sign(Sha256Hash.ZERO_HASH);
key2.sign(Sha256Hash.ZERO_HASH);
}
Example 13
| Source File: SegWitWalletTest.java From token-core-android with Apache License 2.0 | 4 votes |
|
@Test
public void transactionSignTest() {
String address = "1Fyxts6r24DpEieygQiNnWxUdb18ANa5p7";
byte[] hash160 = Address.fromBase58(MainNetParams.get(), address).getHash160();
System.out.println("Public Key: " + NumericUtil.bytesToHex(hash160));
String privateKey = "eb696a065ef48a2192da5b28b694f87544b30fae8327c4510137a922f32c6dcf";
ECKey ecKey = ECKey.fromPrivate(NumericUtil.hexToBytes(privateKey), true);
assertEquals("public key", "03ad1d8e89212f0b92c74d23bb710c00662ad1470198ac48c43f7d6f93a2a26873", ecKey.getPublicKeyAsHex());
byte[] pubKeyHash = ecKey.getPubKeyHash();
String redeemScript = String.format("0x0014%s", NumericUtil.bytesToHex(pubKeyHash));
assertEquals("redeem script", "0x001479091972186c449eb1ded22b78e40d009bdf0089", redeemScript);
byte[] redeemScriptBytes = Utils.sha256hash160(NumericUtil.hexToBytes(redeemScript));
byte[] scriptCode = NumericUtil.hexToBytes(String.format("0x1976a914%s88ac", NumericUtil.bytesToHex(pubKeyHash)));
String scriptPub = Integer.toHexString(169) + Integer.toHexString(redeemScriptBytes.length) + NumericUtil.bytesToHex(redeemScriptBytes) + Integer.toHexString(135);
assertEquals("scriptPubKey", "a9144733f37cf4db86fbc2efed2500b4f4e49f31202387", scriptPub);
byte[] hashPrevouts = Sha256Hash.hashTwice(NumericUtil.hexToBytes("db6b1b20aa0fd7b23880be2ecbd4a98130974cf4748fb66092ac4d3ceb1a547701000000"));
assertEquals("hash Prevouts", "b0287b4a252ac05af83d2dcef00ba313af78a3e9c329afa216eb3aa2a7b4613a", NumericUtil.bytesToHex(hashPrevouts));
byte[] hashSequence = Sha256Hash.hashTwice(NumericUtil.hexToBytes("feffffff"));
assertEquals("hashSequence", "18606b350cd8bf565266bc352f0caddcf01e8fa789dd8a15386327cf8cabe198", NumericUtil.bytesToHex(hashSequence));
byte[] hashOutputs = Sha256Hash.hashTwice(NumericUtil.hexToBytes("b8b4eb0b000000001976a914a457b684d7f0d539a46a45bbc043f35b59d0d96388ac0008af2f000000001976a914fd270b1ee6abcaea97fea7ad0402e8bd8ad6d77c88ac"));
assertEquals("hashOutputs", "de984f44532e2173ca0d64314fcefe6d30da6f8cf27bafa706da61df8a226c83", NumericUtil.bytesToHex(hashOutputs));
UnsafeByteArrayOutputStream stream = new UnsafeByteArrayOutputStream();
try {
Utils.uint32ToByteStreamLE(1L, stream);
stream.write(hashPrevouts);
stream.write(hashSequence);
stream.write(NumericUtil.hexToBytes("db6b1b20aa0fd7b23880be2ecbd4a98130974cf4748fb66092ac4d3ceb1a547701000000"));
stream.write(scriptCode);
stream.write(NumericUtil.hexToBytes("00ca9a3b00000000"));
stream.write(NumericUtil.hexToBytes("feffffff"));
stream.write(hashOutputs);
Utils.uint32ToByteStreamLE(1170, stream);
Utils.uint32ToByteStreamLE(1, stream);
String hashPreimage = NumericUtil.bytesToHex(stream.toByteArray());
String expectedHashPreimage = "01000000b0287b4a252ac05af83d2dcef00ba313af78a3e9c329afa216eb3aa2a7b4613a18606b350cd8bf565266bc352f0caddcf01e8fa789dd8a15386327cf8cabe198db6b1b20aa0fd7b23880be2ecbd4a98130974cf4748fb66092ac4d3ceb1a5477010000001976a91479091972186c449eb1ded22b78e40d009bdf008988ac00ca9a3b00000000feffffffde984f44532e2173ca0d64314fcefe6d30da6f8cf27bafa706da61df8a226c839204000001000000";
assertEquals(hashPreimage, expectedHashPreimage);
byte[] sigHash = Sha256Hash.hashTwice(stream.toByteArray());
assertEquals("64f3b0f4dd2bb3aa1ce8566d220cc74dda9df97d8490cc81d89d735c92e59fb6", NumericUtil.bytesToHex(sigHash));
ECKey.ECDSASignature signature = ecKey.sign(Sha256Hash.wrap(sigHash));
byte hashType = 0x01;
System.out.println(NumericUtil.bytesToHex(ByteUtil.concat(signature.encodeToDER(), new byte[]{hashType})));
} catch (IOException e) {
e.printStackTrace();
}
}
