Java Code Examples for org.bitcoinj.script.Script#getProgram()
The following examples show how to use
org.bitcoinj.script.Script#getProgram() .
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Example 1
| Source File: ScriptTools.java From thunder with GNU Affero General Public License v3.0 | 5 votes |
|
public static Script produceScript (byte[] template, byte[]... parameters) {
try {
ScriptBuilder builder = new ScriptBuilder();
int parameter = 0;
for (byte chunk : template) {
int op = chunk;
if (op < 0) {
op = op + 256;
}
if (op == 255) {
builder.data(parameters[parameter]);
parameter++;
} else if (op == 0) {
builder.data(new byte[0]);
} else {
builder.op(op);
}
}
//Bug in bitcoinJ when dealing with OP_0. Gets solved by reserializing.
Script s = builder.build();
return new Script(s.getProgram());
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
Example 2
| Source File: Tools.java From thunder with GNU Affero General Public License v3.0 | 5 votes |
|
public static Script getMultisigInputScript (ECDSASignature client, ECDSASignature server) {
ArrayList<TransactionSignature> signList = new ArrayList<TransactionSignature>();
signList.add(new TransactionSignature(client, SigHash.ALL, false));
signList.add(new TransactionSignature(server, SigHash.ALL, false));
Script inputScript = ScriptBuilder.createMultiSigInputScript(signList);
/*
* Seems there is a bug here,
* https://groups.google.com/forum/#!topic/bitcoinj/A9R8TdUsXms
*/
Script workaround = new Script(inputScript.getProgram());
return workaround;
}
Example 3
| Source File: ScriptTools.java From thundernetwork with GNU Affero General Public License v3.0 | 5 votes |
|
public static Script produceScript (byte[] template, byte[]... parameters) {
try {
ScriptBuilder builder = new ScriptBuilder();
int parameter = 0;
for (byte chunk : template) {
int op = chunk;
if (op < 0) {
op = op + 256;
}
if (op == 255) {
builder.data(parameters[parameter]);
parameter++;
} else if (op == 0) {
builder.data(new byte[0]);
} else {
builder.op(op);
}
}
//Bug in bitcoinJ when dealing with OP_0. Gets solved by reserializing.
Script s = builder.build();
return new Script(s.getProgram());
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
Example 4
| Source File: Tools.java From thundernetwork with GNU Affero General Public License v3.0 | 5 votes |
|
/**
* Gets the multisig input script.
*
* @param client the client
* @param server the server
* @return the multisig input script
*/
public static Script getMultisigInputScript (ECDSASignature client, ECDSASignature server) {
ArrayList<TransactionSignature> signList = new ArrayList<TransactionSignature>();
signList.add(new TransactionSignature(client, SigHash.ALL, false));
signList.add(new TransactionSignature(server, SigHash.ALL, false));
Script inputScript = ScriptBuilder.createMultiSigInputScript(signList);
/*
* Seems there is a bug here,
* https://groups.google.com/forum/#!topic/bitcoinj/A9R8TdUsXms
*/
Script workaround = new Script(inputScript.getProgram());
return workaround;
}
Example 5
| Source File: TradeWalletService.java From bisq-core with GNU Affero General Public License v3.0 | 4 votes |
|
public Transaction emergencySignAndPublishPayoutTx(String depositTxHex,
Coin buyerPayoutAmount,
Coin sellerPayoutAmount,
Coin arbitratorPayoutAmount,
Coin txFee,
String buyerAddressString,
String sellerAddressString,
String arbitratorAddressString,
@Nullable String buyerPrivateKeyAsHex,
@Nullable String sellerPrivateKeyAsHex,
String arbitratorPrivateKeyAsHex,
String buyerPubKeyAsHex,
String sellerPubKeyAsHex,
String arbitratorPubKeyAsHex,
String P2SHMultiSigOutputScript,
TxBroadcaster.Callback callback)
throws AddressFormatException, TransactionVerificationException, WalletException {
log.info("signAndPublishPayoutTx called");
log.info("depositTxHex " + depositTxHex);
log.info("buyerPayoutAmount " + buyerPayoutAmount.toFriendlyString());
log.info("sellerPayoutAmount " + sellerPayoutAmount.toFriendlyString());
log.info("arbitratorPayoutAmount " + arbitratorPayoutAmount.toFriendlyString());
log.info("buyerAddressString " + buyerAddressString);
log.info("sellerAddressString " + sellerAddressString);
log.info("arbitratorAddressString " + arbitratorAddressString);
log.info("buyerPrivateKeyAsHex (not displayed for security reasons)");
log.info("sellerPrivateKeyAsHex (not displayed for security reasons)");
log.info("arbitratorPrivateKeyAsHex (not displayed for security reasons)");
log.info("buyerPubKeyAsHex " + buyerPubKeyAsHex);
log.info("sellerPubKeyAsHex " + sellerPubKeyAsHex);
log.info("arbitratorPubKeyAsHex " + arbitratorPubKeyAsHex);
log.info("P2SHMultiSigOutputScript " + P2SHMultiSigOutputScript);
checkNotNull((buyerPrivateKeyAsHex != null || sellerPrivateKeyAsHex != null), "either buyerPrivateKeyAsHex or sellerPrivateKeyAsHex must not be null");
byte[] buyerPubKey = ECKey.fromPublicOnly(Utils.HEX.decode(buyerPubKeyAsHex)).getPubKey();
byte[] sellerPubKey = ECKey.fromPublicOnly(Utils.HEX.decode(sellerPubKeyAsHex)).getPubKey();
final byte[] arbitratorPubKey = ECKey.fromPublicOnly(Utils.HEX.decode(arbitratorPubKeyAsHex)).getPubKey();
Script p2SHMultiSigOutputScript = getP2SHMultiSigOutputScript(buyerPubKey, sellerPubKey, arbitratorPubKey);
Coin msOutput = buyerPayoutAmount.add(sellerPayoutAmount).add(arbitratorPayoutAmount).add(txFee);
TransactionOutput p2SHMultiSigOutput = new TransactionOutput(params, null, msOutput, p2SHMultiSigOutputScript.getProgram());
Transaction depositTx = new Transaction(params);
depositTx.addOutput(p2SHMultiSigOutput);
Transaction payoutTx = new Transaction(params);
Sha256Hash spendTxHash = Sha256Hash.wrap(depositTxHex);
payoutTx.addInput(new TransactionInput(params, depositTx, p2SHMultiSigOutputScript.getProgram(), new TransactionOutPoint(params, 0, spendTxHash), msOutput));
if (buyerPayoutAmount.isGreaterThan(Coin.ZERO))
payoutTx.addOutput(buyerPayoutAmount, Address.fromBase58(params, buyerAddressString));
if (sellerPayoutAmount.isGreaterThan(Coin.ZERO))
payoutTx.addOutput(sellerPayoutAmount, Address.fromBase58(params, sellerAddressString));
if (arbitratorPayoutAmount.isGreaterThan(Coin.ZERO))
payoutTx.addOutput(arbitratorPayoutAmount, Address.fromBase58(params, arbitratorAddressString));
// take care of sorting!
Script redeemScript = getMultiSigRedeemScript(buyerPubKey, sellerPubKey, arbitratorPubKey);
Sha256Hash sigHash = payoutTx.hashForSignature(0, redeemScript, Transaction.SigHash.ALL, false);
ECKey.ECDSASignature tradersSignature;
if (buyerPrivateKeyAsHex != null && !buyerPrivateKeyAsHex.isEmpty()) {
final ECKey buyerPrivateKey = ECKey.fromPrivate(Utils.HEX.decode(buyerPrivateKeyAsHex));
checkNotNull(buyerPrivateKey, "buyerPrivateKey must not be null");
tradersSignature = buyerPrivateKey.sign(sigHash, aesKey).toCanonicalised();
} else {
checkNotNull(sellerPrivateKeyAsHex, "sellerPrivateKeyAsHex must not be null");
final ECKey sellerPrivateKey = ECKey.fromPrivate(Utils.HEX.decode(sellerPrivateKeyAsHex));
checkNotNull(sellerPrivateKey, "sellerPrivateKey must not be null");
tradersSignature = sellerPrivateKey.sign(sigHash, aesKey).toCanonicalised();
}
final ECKey key = ECKey.fromPrivate(Utils.HEX.decode(arbitratorPrivateKeyAsHex));
checkNotNull(key, "key must not be null");
ECKey.ECDSASignature arbitratorSignature = key.sign(sigHash, aesKey).toCanonicalised();
TransactionSignature tradersTxSig = new TransactionSignature(tradersSignature, Transaction.SigHash.ALL, false);
TransactionSignature arbitratorTxSig = new TransactionSignature(arbitratorSignature, Transaction.SigHash.ALL, false);
// Take care of order of signatures. See comment below at getMultiSigRedeemScript (sort order needed here: arbitrator, seller, buyer)
Script inputScript = ScriptBuilder.createP2SHMultiSigInputScript(ImmutableList.of(arbitratorTxSig, tradersTxSig), redeemScript);
TransactionInput input = payoutTx.getInput(0);
input.setScriptSig(inputScript);
WalletService.printTx("payoutTx", payoutTx);
WalletService.verifyTransaction(payoutTx);
WalletService.checkWalletConsistency(wallet);
broadcastTx(payoutTx, callback, 20);
return payoutTx;
}
Example 6
| Source File: TradeWalletService.java From bisq with GNU Affero General Public License v3.0 | 4 votes |
|
public void emergencySignAndPublishPayoutTxFrom2of2MultiSig(String depositTxHex,
Coin buyerPayoutAmount,
Coin sellerPayoutAmount,
Coin txFee,
String buyerAddressString,
String sellerAddressString,
String buyerPrivateKeyAsHex,
String sellerPrivateKeyAsHex,
String buyerPubKeyAsHex,
String sellerPubKeyAsHex,
TxBroadcaster.Callback callback)
throws AddressFormatException, TransactionVerificationException, WalletException {
byte[] buyerPubKey = ECKey.fromPublicOnly(Utils.HEX.decode(buyerPubKeyAsHex)).getPubKey();
byte[] sellerPubKey = ECKey.fromPublicOnly(Utils.HEX.decode(sellerPubKeyAsHex)).getPubKey();
Script p2SHMultiSigOutputScript = get2of2MultiSigOutputScript(buyerPubKey, sellerPubKey);
Coin msOutput = buyerPayoutAmount.add(sellerPayoutAmount).add(txFee);
TransactionOutput p2SHMultiSigOutput = new TransactionOutput(params, null, msOutput, p2SHMultiSigOutputScript.getProgram());
Transaction depositTx = new Transaction(params);
depositTx.addOutput(p2SHMultiSigOutput);
Transaction payoutTx = new Transaction(params);
Sha256Hash spendTxHash = Sha256Hash.wrap(depositTxHex);
payoutTx.addInput(new TransactionInput(params, depositTx, p2SHMultiSigOutputScript.getProgram(), new TransactionOutPoint(params, 0, spendTxHash), msOutput));
if (buyerPayoutAmount.isPositive()) {
payoutTx.addOutput(buyerPayoutAmount, Address.fromBase58(params, buyerAddressString));
}
if (sellerPayoutAmount.isPositive()) {
payoutTx.addOutput(sellerPayoutAmount, Address.fromBase58(params, sellerAddressString));
}
// take care of sorting!
Script redeemScript = get2of2MultiSigRedeemScript(buyerPubKey, sellerPubKey);
Sha256Hash sigHash = payoutTx.hashForSignature(0, redeemScript, Transaction.SigHash.ALL, false);
ECKey buyerPrivateKey = ECKey.fromPrivate(Utils.HEX.decode(buyerPrivateKeyAsHex));
checkNotNull(buyerPrivateKey, "key must not be null");
ECKey.ECDSASignature buyerECDSASignature = buyerPrivateKey.sign(sigHash, aesKey).toCanonicalised();
ECKey sellerPrivateKey = ECKey.fromPrivate(Utils.HEX.decode(sellerPrivateKeyAsHex));
checkNotNull(sellerPrivateKey, "key must not be null");
ECKey.ECDSASignature sellerECDSASignature = sellerPrivateKey.sign(sigHash, aesKey).toCanonicalised();
TransactionSignature buyerTxSig = new TransactionSignature(buyerECDSASignature, Transaction.SigHash.ALL, false);
TransactionSignature sellerTxSig = new TransactionSignature(sellerECDSASignature, Transaction.SigHash.ALL, false);
Script inputScript = ScriptBuilder.createP2SHMultiSigInputScript(ImmutableList.of(sellerTxSig, buyerTxSig), redeemScript);
TransactionInput input = payoutTx.getInput(0);
input.setScriptSig(inputScript);
WalletService.printTx("payoutTx", payoutTx);
WalletService.verifyTransaction(payoutTx);
WalletService.checkWalletConsistency(wallet);
broadcastTx(payoutTx, callback, 20);
}
Example 7
| Source File: Transaction.java From green_android with GNU General Public License v3.0 | 2 votes |
|
/**
* <p>Calculates a signature hash, that is, a hash of a simplified form of the transaction. How exactly the transaction
* is simplified is specified by the type and anyoneCanPay parameters.</p>
*
* <p>This is a low level API and when using the regular {@link Wallet} class you don't have to call this yourself.
* When working with more complex transaction types and contracts, it can be necessary. When signing a Witness output
* the scriptCode should be the script encoded into the scriptSig field, for normal transactions, it's the
* scriptPubKey of the output you're signing for. (See BIP143: https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki)</p>
*
* @param inputIndex input the signature is being calculated for. Tx signatures are always relative to an input.
* @param scriptCode the script that should be in the given input during signing.
* @param prevValue the value of the coin being spent
* @param type Should be SigHash.ALL
* @param anyoneCanPay should be false.
*/
public synchronized Sha256Hash hashForSignatureWitness(int inputIndex, Script scriptCode, Coin prevValue,
SigHash type, boolean anyoneCanPay) {
byte[] connectedScript = scriptCode.getProgram();
return hashForSignatureWitness(inputIndex, connectedScript, prevValue, type, anyoneCanPay);
}
Example 8
| Source File: Transaction.java From GreenBits with GNU General Public License v3.0 | 2 votes |
|
/**
* <p>Calculates a signature hash, that is, a hash of a simplified form of the transaction. How exactly the transaction
* is simplified is specified by the type and anyoneCanPay parameters.</p>
*
* <p>This is a low level API and when using the regular {@link Wallet} class you don't have to call this yourself.
* When working with more complex transaction types and contracts, it can be necessary. When signing a Witness output
* the scriptCode should be the script encoded into the scriptSig field, for normal transactions, it's the
* scriptPubKey of the output you're signing for. (See BIP143: https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki)</p>
*
* @param inputIndex input the signature is being calculated for. Tx signatures are always relative to an input.
* @param scriptCode the script that should be in the given input during signing.
* @param prevValue the value of the coin being spent
* @param type Should be SigHash.ALL
* @param anyoneCanPay should be false.
*/
public synchronized Sha256Hash hashForSignatureWitness(int inputIndex, Script scriptCode, Coin prevValue,
SigHash type, boolean anyoneCanPay) {
byte[] connectedScript = scriptCode.getProgram();
return hashForSignatureWitness(inputIndex, connectedScript, prevValue, type, anyoneCanPay);
}
