Java Code Examples for com.btchip.utils.BufferUtils#writeBuffer()
The following examples show how to use
com.btchip.utils.BufferUtils#writeBuffer() .
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Example 1
| Source File: BitcoinTransaction.java From WalletCordova with GNU Lesser General Public License v2.1 | 6 votes |
|
public byte[] serialize(boolean skipOutputLockTime) throws BTChipException {
ByteArrayOutputStream output = new ByteArrayOutputStream();
BufferUtils.writeBuffer(output, version);
VarintUtils.write(output, inputs.size());
for (BitcoinInput input : inputs) {
input.serialize(output);
}
if (!skipOutputLockTime) {
VarintUtils.write(output, outputs.size());
for (BitcoinOutput outputItem : outputs) {
outputItem.serialize(output);
}
BufferUtils.writeBuffer(output, lockTime);
}
return output.toByteArray();
}
Example 2
| Source File: BTChipDongle.java From WalletCordova with GNU Lesser General Public License v2.1 | 6 votes |
|
public void startUntrustedTransaction(boolean newTransaction, long inputIndex, BTChipInput usedInputList[], byte[] redeemScript, boolean segwit) throws BTChipException {
// Start building a fake transaction with the passed inputs
ByteArrayOutputStream data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, BitcoinTransaction.DEFAULT_VERSION);
VarintUtils.write(data, usedInputList.length);
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_HASH_INPUT_START, (byte)0x00, (newTransaction ? (segwit ? (byte)0x02 : (byte)0x00) : (byte)0x80), data.toByteArray(), OK);
// Loop for each input
long currentIndex = 0;
for (BTChipInput input : usedInputList) {
byte[] script = (currentIndex == inputIndex ? redeemScript : new byte[0]);
data = new ByteArrayOutputStream();
data.write(segwit ? 0x02 : (input.isTrusted() ? (byte)0x01 : (byte)0x00));
if (input.isTrusted()) {
// untrusted inputs have constant length
data.write(input.getValue().length);
}
BufferUtils.writeBuffer(data, input.getValue());
VarintUtils.write(data, script.length);
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_HASH_INPUT_START, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, script);
BufferUtils.writeBuffer(data, input.getSequence());
exchangeApduSplit(BTCHIP_CLA, BTCHIP_INS_HASH_INPUT_START, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
currentIndex++;
}
}
Example 3
| Source File: BTChipDongle.java From WalletCordova with GNU Lesser General Public License v2.1 | 5 votes |
|
public BTChipOutput finalizeInput(String outputAddress, String amount, String fees, String changePath) throws BTChipException {
BTChipOutput result;
ByteArrayOutputStream data = new ByteArrayOutputStream();
byte path[] = BIP32Utils.splitPath(changePath);
data.write(outputAddress.length());
BufferUtils.writeBuffer(data, outputAddress.getBytes());
BufferUtils.writeUint64BE(data, CoinFormatUtils.toSatoshi(amount));
BufferUtils.writeUint64BE(data, CoinFormatUtils.toSatoshi(fees));
BufferUtils.writeBuffer(data, path);
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_HASH_INPUT_FINALIZE, (byte)0x02, (byte)0x00, data.toByteArray(), OK);
result = convertResponseToOutput(response);
return result;
}
Example 4
| Source File: BTChipDongle.java From green_android with GNU General Public License v3.0 | 5 votes |
|
public BTChipOutput finalizeInput(String outputAddress, String amount, String fees, final List<Integer> changePath) throws BTChipException {
BTChipOutput result;
ByteArrayOutputStream data = new ByteArrayOutputStream();
byte path[] = pathToByteArray(changePath);
data.write(outputAddress.length());
BufferUtils.writeBuffer(data, outputAddress.getBytes());
BufferUtils.writeUint64BE(data, CoinFormatUtils.toSatoshi(amount));
BufferUtils.writeUint64BE(data, CoinFormatUtils.toSatoshi(fees));
BufferUtils.writeBuffer(data, path);
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_HASH_INPUT_FINALIZE, (byte)0x02, (byte)0x00, data.toByteArray(), OK);
result = convertResponseToOutput(response);
return result;
}
Example 5
| Source File: BTChipDongle.java From green_android with GNU General Public License v3.0 | 5 votes |
|
public byte[] untrustedHashSign(final List<Integer> privateKeyPath, String pin, long lockTime, byte sigHashType) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
byte path[] = pathToByteArray(privateKeyPath);
BufferUtils.writeBuffer(data, path);
data.write(pin.length());
BufferUtils.writeBuffer(data, pin.getBytes());
BufferUtils.writeUint32BE(data, lockTime);
data.write(sigHashType);
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_HASH_SIGN, (byte)0x00, (byte)0x00, data.toByteArray(), OK);
response[0] = (byte)0x30;
return response;
}
Example 6
| Source File: BTChipDongle.java From green_android with GNU General Public License v3.0 | 5 votes |
|
public byte[] untrustedLiquidHashSign(final List<Integer> privateKeyPath, long lockTime, byte sigHashType) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
byte path[] = pathToByteArray(privateKeyPath);
BufferUtils.writeBuffer(data, path);
//data.write(pin.length());
data.write((byte)0x00);
//BufferUtils.writeBuffer(data, pin.getBytes());
BufferUtils.writeUint32BE(data, lockTime);
data.write(sigHashType);
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_HASH_SIGN, (byte)0x00, (byte)0x00, data.toByteArray(), OK);
response[0] = (byte)0x30;
return response;
}
Example 7
| Source File: BTChipDongle.java From green_android with GNU General Public License v3.0 | 5 votes |
|
public boolean signMessagePrepare(final List<Integer> path, byte[] message) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, pathToByteArray(path));
if (this.shouldUseNewSigningApi()) {
// length has two bytes in Ledger 1.0.2+
data.write((byte)0);
}
data.write((byte)message.length);
BufferUtils.writeBuffer(data, message);
final byte p2 = (byte) (this.shouldUseNewSigningApi() ? 0x01 : 0x00);
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_SIGN_MESSAGE, (byte)0x00, p2, data.toByteArray(), OK);
return (response[0] == (byte)0x01);
}
Example 8
| Source File: BTChipDongle.java From GreenBits with GNU General Public License v3.0 | 5 votes |
|
public BTChipSignature signMessageSign(byte[] pin) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
if (pin == null) {
data.write((byte)0);
}
else {
data.write((byte)pin.length);
BufferUtils.writeBuffer(data, pin);
}
final byte p2 = (byte) (this.shouldUseNewSigningApi() ? 0x01 : 0x00);
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_SIGN_MESSAGE, (byte)0x80, p2, data.toByteArray(), OK);
int yParity = (response[0] & 0x0F);
response[0] = (byte)0x30;
return new BTChipSignature(response, yParity);
}
Example 9
| Source File: BTChipDongle.java From GreenBits with GNU General Public License v3.0 | 5 votes |
|
public boolean signMessagePrepare(String path, byte[] message) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, BIP32Utils.splitPath(path));
if (this.shouldUseNewSigningApi()) {
// length has two bytes in Ledger 1.0.2+
data.write((byte)0);
}
data.write((byte)message.length);
BufferUtils.writeBuffer(data, message);
final byte p2 = (byte) (this.shouldUseNewSigningApi() ? 0x01 : 0x00);
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_SIGN_MESSAGE, (byte)0x00, p2, data.toByteArray(), OK);
return (response[0] == (byte)0x01);
}
Example 10
| Source File: BTChipDongle.java From WalletCordova with GNU Lesser General Public License v2.1 | 5 votes |
|
public byte[] untrustedHashSign(String privateKeyPath, String pin, long lockTime, byte sigHashType) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
byte path[] = BIP32Utils.splitPath(privateKeyPath);
BufferUtils.writeBuffer(data, path);
data.write(pin.length());
BufferUtils.writeBuffer(data, pin.getBytes());
BufferUtils.writeUint32BE(data, lockTime);
data.write(sigHashType);
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_HASH_SIGN, (byte)0x00, (byte)0x00, data.toByteArray(), OK);
response[0] = (byte)0x30;
return response;
}
Example 11
| Source File: BTChipDongle.java From GreenBits with GNU General Public License v3.0 | 5 votes |
|
public BTChipInput getTrustedInput(BitcoinTransaction transaction, long index, long sequence) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
// Header
BufferUtils.writeUint32BE(data, index);
BufferUtils.writeBuffer(data, transaction.getVersion());
VarintUtils.write(data, transaction.getInputs().size());
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x00, (byte)0x00, data.toByteArray(), OK);
// Each input
for (BitcoinTransaction.BitcoinInput input : transaction.getInputs()) {
data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, input.getPrevOut());
VarintUtils.write(data, input.getScript().length);
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, input.getScript());
exchangeApduSplit2(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), input.getSequence(), OK);
}
// Number of outputs
data = new ByteArrayOutputStream();
VarintUtils.write(data, transaction.getOutputs().size());
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
// Each output
for (BitcoinTransaction.BitcoinOutput output : transaction.getOutputs()) {
data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, output.getAmount());
VarintUtils.write(data, output.getScript().length);
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, output.getScript());
exchangeApduSplit(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
}
// Locktime
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, transaction.getLockTime(), OK);
ByteArrayOutputStream sequenceBuf = new ByteArrayOutputStream();
BufferUtils.writeUint32LE(sequenceBuf, sequence);
return new BTChipInput(response, sequenceBuf.toByteArray(), true, false);
}
Example 12
| Source File: BTChipDongle.java From WalletCordova with GNU Lesser General Public License v2.1 | 5 votes |
|
public BTChipSignature signMessageSign(byte[] pin) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
if (pin == null) {
data.write((byte)0);
}
else {
data.write((byte)pin.length);
BufferUtils.writeBuffer(data, pin);
}
final byte p2 = (byte) (this.shouldUseNewSigningApi() ? 0x01 : 0x00);
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_SIGN_MESSAGE, (byte)0x80, p2, data.toByteArray(), OK);
int yParity = (response[0] & 0x0F);
response[0] = (byte)0x30;
return new BTChipSignature(response, yParity);
}
Example 13
| Source File: BTChipDongle.java From WalletCordova with GNU Lesser General Public License v2.1 | 5 votes |
|
public BTChipInput getTrustedInput(BitcoinTransaction transaction, long index, long sequence) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
// Header
BufferUtils.writeUint32BE(data, index);
BufferUtils.writeBuffer(data, transaction.getVersion());
VarintUtils.write(data, transaction.getInputs().size());
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x00, (byte)0x00, data.toByteArray(), OK);
// Each input
for (BitcoinTransaction.BitcoinInput input : transaction.getInputs()) {
data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, input.getPrevOut());
VarintUtils.write(data, input.getScript().length);
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, input.getScript());
exchangeApduSplit2(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), input.getSequence(), OK);
}
// Number of outputs
data = new ByteArrayOutputStream();
VarintUtils.write(data, transaction.getOutputs().size());
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
// Each output
for (BitcoinTransaction.BitcoinOutput output : transaction.getOutputs()) {
data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, output.getAmount());
VarintUtils.write(data, output.getScript().length);
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, output.getScript());
exchangeApduSplit(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, data.toByteArray(), OK);
}
// Locktime
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_GET_TRUSTED_INPUT, (byte)0x80, (byte)0x00, transaction.getLockTime(), OK);
ByteArrayOutputStream sequenceBuf = new ByteArrayOutputStream();
BufferUtils.writeUint32LE(sequenceBuf, sequence);
return new BTChipInput(response, sequenceBuf.toByteArray(), true);
}
Example 14
| Source File: BitcoinTransaction.java From GreenBits with GNU General Public License v3.0 | 4 votes |
|
public void serialize(ByteArrayOutputStream output) throws BTChipException {
BufferUtils.writeBuffer(output, prevOut);
VarintUtils.write(output, script.length);
BufferUtils.writeBuffer(output, script);
BufferUtils.writeBuffer(output, sequence);
}
Example 15
| Source File: BTChipDongle.java From GreenBits with GNU General Public License v3.0 | 4 votes |
|
public void setKeymapEncoding(byte[] keymapEncoding) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, keymapEncoding);
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_SET_KEYMAP, (byte)0x00, (byte)0x00, data.toByteArray(), OK_OR_NOT_SUPPORTED);
}
Example 16
| Source File: BTChipDongle.java From GreenBits with GNU General Public License v3.0 | 4 votes |
|
public boolean setup(OperationMode supportedOperationModes[], Feature features[], int keyVersion, int keyVersionP2SH, byte[] userPin, byte[] wipePin, byte[] keymapEncoding, byte[] seed, byte[] developerKey) throws BTChipException {
int operationModeFlags = 0;
int featuresFlags = 0;
ByteArrayOutputStream data = new ByteArrayOutputStream();
for (OperationMode currentOperationMode : supportedOperationModes) {
operationModeFlags |= currentOperationMode.getValue();
}
for (Feature currentFeature : features) {
featuresFlags |= currentFeature.getValue();
}
data.write(operationModeFlags);
data.write(featuresFlags);
data.write(keyVersion);
data.write(keyVersionP2SH);
if ((userPin.length < 0x04) || (userPin.length > 0x20)) {
throw new BTChipException("Invalid user PIN length");
}
data.write(userPin.length);
BufferUtils.writeBuffer(data, userPin);
if (wipePin != null) {
if (wipePin.length > 0x04) {
throw new BTChipException("Invalid wipe PIN length");
}
data.write(wipePin.length);
BufferUtils.writeBuffer(data, wipePin);
}
else {
data.write(0);
}
if (seed != null) {
if ((seed.length < 32) || (seed.length > 64)) {
throw new BTChipException("Invalid seed length");
}
data.write(seed.length);
BufferUtils.writeBuffer(data, seed);
}
else {
data.write(0);
}
if (developerKey != null) {
if (developerKey.length != 0x10) {
throw new BTChipException("Invalid developer key");
}
data.write(developerKey.length);
BufferUtils.writeBuffer(data, developerKey);
}
else {
data.write(0);
}
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_SETUP, (byte)0x00, (byte)0x00, data.toByteArray(), OK);
if (keymapEncoding != null) {
setKeymapEncoding(keymapEncoding);
}
return (response[0] == (byte)0x01);
}
Example 17
| Source File: BTChipDongle.java From WalletCordova with GNU Lesser General Public License v2.1 | 4 votes |
|
public boolean setup(OperationMode supportedOperationModes[], Feature features[], int keyVersion, int keyVersionP2SH, byte[] userPin, byte[] wipePin, byte[] keymapEncoding, byte[] seed, byte[] developerKey) throws BTChipException {
int operationModeFlags = 0;
int featuresFlags = 0;
ByteArrayOutputStream data = new ByteArrayOutputStream();
for (OperationMode currentOperationMode : supportedOperationModes) {
operationModeFlags |= currentOperationMode.getValue();
}
for (Feature currentFeature : features) {
featuresFlags |= currentFeature.getValue();
}
data.write(operationModeFlags);
data.write(featuresFlags);
data.write(keyVersion);
data.write(keyVersionP2SH);
if ((userPin.length < 0x04) || (userPin.length > 0x20)) {
throw new BTChipException("Invalid user PIN length");
}
data.write(userPin.length);
BufferUtils.writeBuffer(data, userPin);
if (wipePin != null) {
if (wipePin.length > 0x04) {
throw new BTChipException("Invalid wipe PIN length");
}
data.write(wipePin.length);
BufferUtils.writeBuffer(data, wipePin);
}
else {
data.write(0);
}
if (seed != null) {
if ((seed.length < 32) || (seed.length > 64)) {
throw new BTChipException("Invalid seed length");
}
data.write(seed.length);
BufferUtils.writeBuffer(data, seed);
}
else {
data.write(0);
}
if (developerKey != null) {
if (developerKey.length != 0x10) {
throw new BTChipException("Invalid developer key");
}
data.write(developerKey.length);
BufferUtils.writeBuffer(data, developerKey);
}
else {
data.write(0);
}
byte[] response = exchangeApdu(BTCHIP_CLA, BTCHIP_INS_SETUP, (byte)0x00, (byte)0x00, data.toByteArray(), OK);
if (keymapEncoding != null) {
setKeymapEncoding(keymapEncoding);
}
return (response[0] == (byte)0x01);
}
Example 18
| Source File: BTChipDongle.java From green_android with GNU General Public License v3.0 | 4 votes |
|
public void setKeymapEncoding(byte[] keymapEncoding) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, keymapEncoding);
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_SET_KEYMAP, (byte)0x00, (byte)0x00, data.toByteArray(), OK_OR_NOT_SUPPORTED);
}
Example 19
| Source File: BTChipDongle.java From WalletCordova with GNU Lesser General Public License v2.1 | 4 votes |
|
public void setKeymapEncoding(byte[] keymapEncoding) throws BTChipException {
ByteArrayOutputStream data = new ByteArrayOutputStream();
BufferUtils.writeBuffer(data, keymapEncoding);
exchangeApdu(BTCHIP_CLA, BTCHIP_INS_SET_KEYMAP, (byte)0x00, (byte)0x00, data.toByteArray(), OK);
}
Example 20
| Source File: BitcoinTransaction.java From green_android with GNU General Public License v3.0 | 4 votes |
|
public void serialize(ByteArrayOutputStream output) throws BTChipException {
BufferUtils.writeBuffer(output, amount);
VarintUtils.write(output, script.length);
BufferUtils.writeBuffer(output, script);
}
