org.spongycastle.util.BigIntegers Java Examples
The following examples show how to use
org.spongycastle.util.BigIntegers.
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Example #1
| Source File: TransactionTest.java From ethereumj with MIT License | 6 votes |
|
@Test
public void testTransactionFromNew1() throws MissingPrivateKeyException {
Transaction txNew = new Transaction(testNonce, testGasPrice, testGasLimit, testReceiveAddress, testValue, testData);
assertEquals("", Hex.toHexString(txNew.getNonce()));
assertEquals(new BigInteger(1, testGasPrice), new BigInteger(1, txNew.getGasPrice()));
assertEquals(new BigInteger(1, testGasLimit), new BigInteger(1, txNew.getGasLimit()));
assertEquals(Hex.toHexString(testReceiveAddress), Hex.toHexString(txNew.getReceiveAddress()));
assertEquals(new BigInteger(1, testValue), new BigInteger(1, txNew.getValue()));
assertEquals("", Hex.toHexString(txNew.getData()));
assertNull(txNew.getSignature());
assertEquals(RLP_ENCODED_RAW_TX, Hex.toHexString(txNew.getEncodedRaw()));
assertEquals(HASH_TX, Hex.toHexString(txNew.getHash()));
assertEquals(RLP_ENCODED_UNSIGNED_TX, Hex.toHexString(txNew.getEncoded()));
txNew.sign(Hex.decode(KEY));
assertEquals(RLP_ENCODED_SIGNED_TX, Hex.toHexString(txNew.getEncoded()));
assertEquals(27, txNew.getSignature().v);
assertEquals("eab47c1a49bf2fe5d40e01d313900e19ca485867d462fe06e139e3a536c6d4f4", Hex.toHexString(BigIntegers.asUnsignedByteArray(txNew.getSignature().r)));
assertEquals("14a569d327dcda4b29f74f93c0e9729d2f49ad726e703f9cd90dbb0fbf6649f1", Hex.toHexString(BigIntegers.asUnsignedByteArray(txNew.getSignature().s)));
}
Example #2
| Source File: Transaction.java From wkcwallet-java with Apache License 2.0 | 6 votes |
|
public String toString(int maxDataSize) {
if(!this.parsed) {
this.rlpParse();
}
String dataS;
if(this.data == null) {
dataS = "";
} else if(this.data.length < maxDataSize) {
dataS = ByteUtil.toHexString(this.data);
} else {
dataS = ByteUtil.toHexString(Arrays.copyOfRange(this.data, 0, maxDataSize)) + "... (" + this.data.length + " bytes)";
}
return "TransactionData [hash=" + ByteUtil.toHexString(this.hash) + " nonce=" + ByteUtil.toHexString(this.nonce) + ", gasPrice=" + ByteUtil.toHexString(this.gasPrice) + ", gas=" + ByteUtil.toHexString(this.gasLimit) + ", receiveAddress=" + ByteUtil.toHexString(this.receiveAddress) + ", value=" + ByteUtil.toHexString(this.value) + ", data=" + dataS + ", signatureV=" + (this.signature == null?"":Byte.valueOf(this.signature.v)) + ", signatureR=" + (this.signature == null?"":ByteUtil.toHexString(BigIntegers.asUnsignedByteArray(this.signature.r))) + ", signatureS=" + (this.signature == null?"":ByteUtil.toHexString(BigIntegers.asUnsignedByteArray(this.signature.s))) + "]";
}
Example #3
| Source File: TransactionTest.java From ethereumj with MIT License | 6 votes |
|
@Test
public void testTransactionFromSignedRLP() throws Exception {
Transaction txSigned = new Transaction(Hex.decode(RLP_ENCODED_SIGNED_TX));
assertEquals(HASH_TX, Hex.toHexString(txSigned.getHash()));
assertEquals(RLP_ENCODED_SIGNED_TX, Hex.toHexString(txSigned.getEncoded()));
assertEquals(BigInteger.ZERO, new BigInteger(1, txSigned.getNonce()));
assertEquals(new BigInteger(1, testGasPrice), new BigInteger(1, txSigned.getGasPrice()));
assertEquals(new BigInteger(1, testGasLimit), new BigInteger(1, txSigned.getGasLimit()));
assertEquals(Hex.toHexString(testReceiveAddress), Hex.toHexString(txSigned.getReceiveAddress()));
assertEquals(new BigInteger(1, testValue), new BigInteger(1, txSigned.getValue()));
assertNull(txSigned.getData());
assertEquals(27, txSigned.getSignature().v);
assertEquals("eab47c1a49bf2fe5d40e01d313900e19ca485867d462fe06e139e3a536c6d4f4", Hex.toHexString(BigIntegers.asUnsignedByteArray(txSigned.getSignature().r)));
assertEquals("14a569d327dcda4b29f74f93c0e9729d2f49ad726e703f9cd90dbb0fbf6649f1", Hex.toHexString(BigIntegers.asUnsignedByteArray(txSigned.getSignature().s)));
}
Example #4
| Source File: Transaction.java From asf-sdk with GNU General Public License v3.0 | 6 votes |
|
private void validate() {
if (getNonce().length > HASH_LENGTH) throw new RuntimeException("Nonce is not valid");
if (receiveAddress != null
&& receiveAddress.length != 0
&& receiveAddress.length != ADDRESS_LENGTH) {
throw new RuntimeException("Receive address is not valid");
}
if (gasLimit.length > HASH_LENGTH) throw new RuntimeException("Gas Limit is not valid");
if (gasPrice != null && gasPrice.length > HASH_LENGTH) {
throw new RuntimeException("Gas Price is not valid");
}
if (value != null && value.length > HASH_LENGTH) {
throw new RuntimeException("Value is not valid");
}
if (getSignature() != null) {
if (BigIntegers.asUnsignedByteArray(signature.r).length > HASH_LENGTH) {
throw new RuntimeException("Signature R is not valid");
}
if (BigIntegers.asUnsignedByteArray(signature.s).length > HASH_LENGTH) {
throw new RuntimeException("Signature S is not valid");
}
if (getSender() != null && getSender().length != ADDRESS_LENGTH) {
throw new RuntimeException("Sender is not valid");
}
}
}
Example #5
| Source File: EthTransaction.java From BlockchainWallet-Crypto with GNU General Public License v3.0 | 6 votes |
|
private void validate() {
if (getNonce().length > HASH_LENGTH) throw new RuntimeException("Nonce is not valid");
if (receiveAddress != null && receiveAddress.length != 0 && receiveAddress.length !=
ADDRESS_LENGTH)
throw new RuntimeException("Receive address is not valid");
if (gasLimit.length > HASH_LENGTH)
throw new RuntimeException("Gas Limit is not valid");
if (gasPrice != null && gasPrice.length > HASH_LENGTH)
throw new RuntimeException("Gas Price is not valid");
if (value != null && value.length > HASH_LENGTH)
throw new RuntimeException("Value is not valid");
if (getSignature() != null) {
if (BigIntegers.asUnsignedByteArray(signature.r).length > HASH_LENGTH)
throw new RuntimeException("Signature R is not valid");
if (BigIntegers.asUnsignedByteArray(signature.s).length > HASH_LENGTH)
throw new RuntimeException("Signature S is not valid");
// if (getSender() != null && getSender().length != ADDRESS_LENGTH)
// throw new RuntimeException("Sender is not valid");
}
}
Example #6
| Source File: EthTransaction.java From BlockchainWallet-Crypto with GNU General Public License v3.0 | 6 votes |
|
public String toString(int maxDataSize) {
rlpParse();
String dataS;
if (data == null) {
dataS = "";
} else if (data.length < maxDataSize) {
dataS = ByteUtil.toHexString(data);
} else {
dataS = ByteUtil.toHexString(Arrays.copyOfRange(data, 0, maxDataSize)) +
"... (" + data.length + " bytes)";
}
return "TransactionData [" + "hash=" + ByteUtil.toHexString(hash) +
" nonce=" + ByteUtil.toHexString(nonce) +
", gasPrice=" + ByteUtil.toHexString(gasPrice) +
", gas=" + ByteUtil.toHexString(gasLimit) +
", receiveAddress=" + ByteUtil.toHexString(receiveAddress) +
// ", sendAddress=" + ByteUtil.toHexString(getSender()) +
", value=" + ByteUtil.toHexString(value) +
", data=" + dataS +
", signatureV=" + (signature == null ? "" : signature.v) +
", signatureR=" + (signature == null ? "" : ByteUtil.toHexString(BigIntegers
.asUnsignedByteArray(signature.r))) +
", signatureS=" + (signature == null ? "" : ByteUtil.toHexString(BigIntegers
.asUnsignedByteArray(signature.s))) +
"]";
}
Example #7
| Source File: TransactionTest.java From ethereumj with MIT License | 6 votes |
|
@Test
public void testTransactionFromUnsignedRLP() throws Exception {
Transaction txUnsigned = new Transaction(Hex.decode(RLP_ENCODED_UNSIGNED_TX));
assertEquals(HASH_TX, Hex.toHexString(txUnsigned.getHash()));
assertEquals(RLP_ENCODED_UNSIGNED_TX, Hex.toHexString(txUnsigned.getEncoded()));
txUnsigned.sign(Hex.decode(KEY));
assertEquals(RLP_ENCODED_SIGNED_TX, Hex.toHexString(txUnsigned.getEncoded()));
assertEquals(BigInteger.ZERO, new BigInteger(1, txUnsigned.getNonce()));
assertEquals(new BigInteger(1, testGasPrice), new BigInteger(1, txUnsigned.getGasPrice()));
assertEquals(new BigInteger(1, testGasLimit), new BigInteger(1, txUnsigned.getGasLimit()));
assertEquals(Hex.toHexString(testReceiveAddress), Hex.toHexString(txUnsigned.getReceiveAddress()));
assertEquals(new BigInteger(1, testValue), new BigInteger(1, txUnsigned.getValue()));
assertNull(txUnsigned.getData());
assertEquals(27, txUnsigned.getSignature().v);
assertEquals("eab47c1a49bf2fe5d40e01d313900e19ca485867d462fe06e139e3a536c6d4f4", Hex.toHexString(BigIntegers.asUnsignedByteArray(txUnsigned.getSignature().r)));
assertEquals("14a569d327dcda4b29f74f93c0e9729d2f49ad726e703f9cd90dbb0fbf6649f1", Hex.toHexString(BigIntegers.asUnsignedByteArray(txUnsigned.getSignature().s)));
}
Example #8
| Source File: Transaction.java From asf-sdk with GNU General Public License v3.0 | 5 votes |
|
/**
* @deprecated use {@link Transaction#create(String, BigInteger, BigInteger, BigInteger, * BigInteger, Integer)} instead
*/
public static Transaction create(String to, BigInteger amount, BigInteger nonce,
BigInteger gasPrice, BigInteger gasLimit) {
return new Transaction(BigIntegers.asUnsignedByteArray(nonce),
BigIntegers.asUnsignedByteArray(gasPrice), BigIntegers.asUnsignedByteArray(gasLimit),
Hex.decode(to), BigIntegers.asUnsignedByteArray(amount), null);
}
Example #9
| Source File: Transaction.java From wkcwallet-java with Apache License 2.0 | 5 votes |
|
public byte[] getEncoded() {
if(this.rlpEncoded != null) {
return this.rlpEncoded;
} else {
byte[] nonce = null;
if(this.nonce != null && (this.nonce.length != 1 || this.nonce[0] != 0)) {
nonce = RLP.encodeElement(this.nonce);
} else {
nonce = RLP.encodeElement((byte[])null);
}
byte[] gasPrice = RLP.encodeElement(this.gasPrice);
byte[] gasLimit = RLP.encodeElement(this.gasLimit);
byte[] receiveAddress = RLP.encodeElement(this.receiveAddress);
byte[] value = RLP.encodeElement(this.value);
byte[] data = RLP.encodeElement(this.data);
byte[] v;
byte[] r;
byte[] s;
if(this.signature != null) {
v = RLP.encodeByte(this.signature.v);
r = RLP.encodeElement(BigIntegers.asUnsignedByteArray(this.signature.r));
s = RLP.encodeElement(BigIntegers.asUnsignedByteArray(this.signature.s));
} else {
v = RLP.encodeElement(ByteUtil.EMPTY_BYTE_ARRAY);
r = RLP.encodeElement(ByteUtil.EMPTY_BYTE_ARRAY);
s = RLP.encodeElement(ByteUtil.EMPTY_BYTE_ARRAY);
}
this.rlpEncoded = RLP.encodeList(new byte[][]{nonce, gasPrice, gasLimit, receiveAddress, value, data, v, r, s});
this.hash = this.getHash();
return this.rlpEncoded;
}
}
Example #10
| Source File: ByteUtilExtendTest.java From aion with MIT License | 5 votes |
|
/**
* This test shows the difference between iterating over, and comparing byte[] vs BigInteger
* value.
*
* <p>Results indicate that the former has ~15x better performance. Therefore this is used in
* the Miner.mine() method.
*/
@Test
public void testIncrementPerformance() {
boolean testEnabled = false;
if (testEnabled) {
byte[] counter1 = new byte[4];
byte[] max = ByteBuffer.allocate(4).putInt(Integer.MAX_VALUE).array();
long start1 = System.currentTimeMillis();
while (ByteUtil.increment(counter1)) {
if (compareTo(counter1, 0, 4, max, 0, 4) == 0) {
break;
}
}
System.out.println(
System.currentTimeMillis()
- start1
+ "ms to reach: "
+ Hex.toHexString(counter1));
BigInteger counter2 = BigInteger.ZERO;
long start2 = System.currentTimeMillis();
while (true) {
if (counter2.compareTo(BigInteger.valueOf(Integer.MAX_VALUE)) == 0) {
break;
}
counter2 = counter2.add(BigInteger.ONE);
}
System.out.println(
System.currentTimeMillis()
- start2
+ "ms to reach: "
+ Hex.toHexString(BigIntegers.asUnsignedByteArray(4, counter2)));
}
}
Example #11
| Source File: Transaction.java From asf-sdk with GNU General Public License v3.0 | 5 votes |
|
public String toString(int maxDataSize) {
rlpParse();
String dataS;
if (data == null) {
dataS = "";
} else if (data.length < maxDataSize) {
dataS = ByteUtil.toHexString(data);
} else {
dataS = ByteUtil.toHexString(Arrays.copyOfRange(data, 0, maxDataSize))
+ "... ("
+ data.length
+ " bytes)";
}
return "TransactionData ["
+ "hash="
+ ByteUtil.toHexString(hash)
+ " nonce="
+ ByteUtil.toHexString(nonce)
+ ", gasPrice="
+ ByteUtil.toHexString(gasPrice)
+ ", gas="
+ ByteUtil.toHexString(gasLimit)
+ ", receiveAddress="
+ ByteUtil.toHexString(receiveAddress)
+ ", sendAddress="
+ ByteUtil.toHexString(getSender())
+ ", value="
+ ByteUtil.toHexString(value)
+ ", data="
+ dataS
+ ", signatureV="
+ (signature == null ? "" : signature.v)
+ ", signatureR="
+ (signature == null ? ""
: ByteUtil.toHexString(BigIntegers.asUnsignedByteArray(signature.r)))
+ ", signatureS="
+ (signature == null ? ""
: ByteUtil.toHexString(BigIntegers.asUnsignedByteArray(signature.s)))
+ "]";
}
Example #12
| Source File: SerpentCompiler.java From ethereumj with MIT License | 5 votes |
|
/**
*
* @param code
* @param init
* @return encoded bytes
*/
public static byte[] encodeMachineCodeForVMRun(byte[] code, byte[] init) {
if (code == null || code.length == 0) throw new RuntimeException("code can't be empty code: " + code);
int numBytes = ByteUtil.numBytes(code.length + "");
byte[] lenBytes = BigIntegers.asUnsignedByteArray(BigInteger.valueOf(code.length));
StringBuffer sb = new StringBuffer();
for (int i = 0; i < lenBytes.length; ++i) {
sb.append(lenBytes[i]).append(" ");
}
// calc real code start position (after the init header)
int pos = 10 + numBytes * 2;
if (init != null) pos+=init.length;
// @push_len @len PUSH1 @src_start PUSH1 0 CODECOPY @push_len @len 0 PUSH1 0 RETURN
String header = String.format("[asm %s %s PUSH1 %d PUSH1 0 CODECOPY %s %s PUSH1 0 RETURN asm]",
"PUSH" + numBytes, sb.toString(), pos , "PUSH" + numBytes, sb.toString());
byte[] headerMachine = compileAssemblyToMachine(header);
byte[] result = init != null ? Arrays.concatenate(init, headerMachine, code) :
Arrays.concatenate(headerMachine, code);
return result;
}
Example #13
| Source File: Transaction.java From ethereumj with MIT License | 5 votes |
|
@Override
public String toString() {
if (!parsed) rlpParse();
return "TransactionData [" + "hash=" + ByteUtil.toHexString(hash) +
" nonce=" + ByteUtil.toHexString(nonce) +
", gasPrice=" + ByteUtil.toHexString(gasPrice) +
", gas=" + ByteUtil.toHexString(gasLimit) +
", receiveAddress=" + ByteUtil.toHexString(receiveAddress) +
", value=" + ByteUtil.toHexString(value) +
", data=" + ByteUtil.toHexString(data) +
", signatureV=" + signature.v +
", signatureR=" + ByteUtil.toHexString(BigIntegers.asUnsignedByteArray(signature.r)) +
", signatureS=" + ByteUtil.toHexString(BigIntegers.asUnsignedByteArray(signature.s)) +
"]";
}
Example #14
| Source File: Transaction.java From ethereumj with MIT License | 5 votes |
|
public String toStylishString() {
if (!parsed) rlpParse();
return " <font color=\"${sub_header_color}\"> TransactionData </font>[" + "<font color=\"${attribute_color}\"> hash</font>=" + ByteUtil.toHexString(hash) + "<br/>" +
"-> , <font color=\"${attribute_color}\"> nonce</font>=" + ByteUtil.toHexString(nonce) + "<br/>" +
"-> , <font color=\"${attribute_color}\"> gasPrice</font>=" + ByteUtil.toHexString(gasPrice) + "<br/>" +
"-> , <font color=\"${attribute_color}\"> gas</font>=" + ByteUtil.toHexString(gasLimit) + "<br/>" +
"-> , <font color=\"${attribute_color}\"> receiveAddress</font>=" + ByteUtil.toHexString(receiveAddress) + "<br/>" +
"-> , <font color=\"${attribute_color}\"> value</font>=" + ByteUtil.toHexString(value) + "<br/>" +
"-> , <font color=\"${attribute_color}\"> data</font>=" + ByteUtil.toHexString(data) + "<br/>" +
"-> , <font color=\"${attribute_color}\"> signatureV</font>=" + signature.v + "<br/>" +
"-> , <font color=\"${attribute_color}\"> signatureR</font>=" + ByteUtil.toHexString(BigIntegers.asUnsignedByteArray(signature.r)) + "<br/>" +
"-> , <font color=\"${attribute_color}\"> signatureS</font>=" + ByteUtil.toHexString(BigIntegers.asUnsignedByteArray(signature.s)) + "<br/>" +
" ]";
}
Example #15
| Source File: Transaction.java From ethereumj with MIT License | 5 votes |
|
public byte[] getEncoded() {
if(rlpEncoded != null) return rlpEncoded;
// parse null as 0 for nonce
byte[] nonce = null;
if (this.nonce == null || this.nonce.length == 1 && this.nonce[0] == 0){
nonce = RLP.encodeElement(null);
} else {
nonce = RLP.encodeElement(this.nonce);
}
byte[] gasPrice = RLP.encodeElement(this.gasPrice);
byte[] gasLimit = RLP.encodeElement(this.gasLimit);
byte[] receiveAddress = RLP.encodeElement(this.receiveAddress);
byte[] value = RLP.encodeElement(this.value);
byte[] data = RLP.encodeElement(this.data);
byte[] v, r, s;
if(signature != null) {
v = RLP.encodeByte( signature.v );
r = RLP.encodeElement(BigIntegers.asUnsignedByteArray(signature.r));
s = RLP.encodeElement(BigIntegers.asUnsignedByteArray(signature.s));
} else {
v = RLP.encodeElement(new byte[0]);
r = RLP.encodeElement(new byte[0]);
s = RLP.encodeElement(new byte[0]);
}
this.rlpEncoded = RLP.encodeList(nonce, gasPrice, gasLimit,
receiveAddress, value, data, v, r, s);
return rlpEncoded;
}
Example #16
| Source File: BlockHeader.java From ethereumj with MIT License | 5 votes |
|
/**
* Calculate Difficulty
* See Yellow Paper: http://www.gavwood.com/Paper.pdf - page 5, 4.3.4 (24)
* @return byte array value of the difficulty
*/
public byte[] calcDifficulty() {
if (this.isGenesis())
return Genesis.DIFFICULTY;
else {
Block parent = this.getParent();
long parentDifficulty = new BigInteger(1, parent.getDifficulty()).longValue();
long newDifficulty = this.getTimestamp() < parent.getTimestamp() + 5 ? parentDifficulty - (parentDifficulty >> 10) : (parentDifficulty + (parentDifficulty >> 10));
return BigIntegers.asUnsignedByteArray(BigInteger.valueOf(newDifficulty));
}
}
Example #17
| Source File: BlockHeader.java From ethereumj with MIT License | 5 votes |
|
/**
* Verify that block is valid for its difficulty
*
* @return boolean
*/
public boolean validateNonce() {
BigInteger max = BigInteger.valueOf(2).pow(256);
byte[] target = BigIntegers.asUnsignedByteArray(32,
max.divide(new BigInteger(1, this.getDifficulty())));
byte[] hash = HashUtil.sha3(this.getEncodedWithoutNonce());
byte[] concat = Arrays.concatenate(hash, this.getNonce());
byte[] result = HashUtil.sha3(concat);
return FastByteComparisons.compareTo(result, 0, 32, target, 0, 32) < 0;
}
Example #18
| Source File: ByteUtilTest.java From ethereumj with MIT License | 5 votes |
|
/**
* This test shows the difference between iterating over,
* and comparing byte[] vs BigInteger value.
*
* Results indicate that the former has ~15x better performance.
* Therefore this is used in the Miner.mine() method.
*/
@Test
public void testIncrementPerformance() {
boolean testEnabled = false;
if(testEnabled) {
byte[] counter1 = new byte[4];
byte[] max = ByteBuffer.allocate(4).putInt(Integer.MAX_VALUE).array();
long start1 = System.currentTimeMillis();
while(ByteUtil.increment(counter1)) {
if(FastByteComparisons.compareTo(counter1, 0, 4, max, 0, 4) == 0) {
break;
}
}
System.out.println(System.currentTimeMillis() - start1 + "ms to reach: " + Hex.toHexString(counter1));
BigInteger counter2 = BigInteger.ZERO;
long start2 = System.currentTimeMillis();
while(true) {
if(counter2.compareTo(BigInteger.valueOf(Integer.MAX_VALUE)) == 0) {
break;
}
counter2 = counter2.add(BigInteger.ONE);
}
System.out.println(System.currentTimeMillis() - start2 + "ms to reach: " + Hex.toHexString(BigIntegers.asUnsignedByteArray(4, counter2)));
}
}
Example #19
| Source File: TransactionTest.java From ethereumj with MIT License | 5 votes |
|
@Test /* achieve public key of the sender nonce: 01 */
public void test3() throws Exception {
// cat --> 79b08ad8787060333663d19704909ee7b1903e58
// cow --> cd2a3d9f938e13cd947ec05abc7fe734df8dd826
ECKey ecKey = ECKey.fromPrivate(HashUtil.sha3("cat".getBytes()));
byte[] senderPrivKey = HashUtil.sha3("cow".getBytes());
byte[] nonce = { 0x01 };
byte[] gasPrice = Hex.decode("09184e72a000");
byte[] gasLimit = Hex.decode("4255");
BigInteger value = new BigInteger("1000000000000000000000000");
Transaction tx = new Transaction(nonce, gasPrice, gasLimit,
ecKey.getAddress(), value.toByteArray(), null);
tx.sign(senderPrivKey);
System.out.println("v\t\t\t: " + Hex.toHexString(new byte[] { tx.getSignature().v }));
System.out.println("r\t\t\t: " + Hex.toHexString(BigIntegers.asUnsignedByteArray(tx.getSignature().r)));
System.out.println("s\t\t\t: " + Hex.toHexString(BigIntegers.asUnsignedByteArray(tx.getSignature().s)));
System.out.println("RLP encoded tx\t\t: " + Hex.toHexString(tx.getEncoded()));
// retrieve the signer/sender of the transaction
ECKey key = ECKey.signatureToKey(tx.getHash(), tx.getSignature().toBase64());
System.out.println("Tx unsigned RLP\t\t: " + Hex.toHexString(tx.getEncodedRaw()));
System.out.println("Tx signed RLP\t\t: " + Hex.toHexString(tx.getEncoded()));
System.out.println("Signature public key\t: " + Hex.toHexString(key.getPubKey()));
System.out.println("Sender is\t\t: " + Hex.toHexString(key.getAddress()));
Assert.assertEquals("cd2a3d9f938e13cd947ec05abc7fe734df8dd826",
Hex.toHexString(key.getAddress()));
}
Example #20
| Source File: ECKey.java From tron-wallet-android with Apache License 2.0 | 5 votes |
|
/**
* Decrypt cipher by AES in SIC(also know as CTR) mode
*
* @param cipher -proper cipher
* @return decrypted cipher, equal length to the cipher.
* @deprecated should not use EC private scalar value as an AES key
*/
public byte[] decryptAES(byte[] cipher) {
if (privKey == null) {
throw new MissingPrivateKeyException();
}
if (!(privKey instanceof BCECPrivateKey)) {
throw new UnsupportedOperationException("Cannot use the private " +
"key as an AES key");
}
AESFastEngine engine = new AESFastEngine();
SICBlockCipher ctrEngine = new SICBlockCipher(engine);
KeyParameter key = new KeyParameter(BigIntegers.asUnsignedByteArray((
(BCECPrivateKey) privKey).getD()));
ParametersWithIV params = new ParametersWithIV(key, new byte[16]);
ctrEngine.init(false, params);
int i = 0;
byte[] out = new byte[cipher.length];
while (i < cipher.length) {
ctrEngine.processBlock(cipher, i, out, i);
i += engine.getBlockSize();
if (cipher.length - i < engine.getBlockSize()) {
break;
}
}
// process left bytes
if (cipher.length - i > 0) {
byte[] tmpBlock = new byte[16];
System.arraycopy(cipher, i, tmpBlock, 0, cipher.length - i);
ctrEngine.processBlock(tmpBlock, 0, tmpBlock, 0);
System.arraycopy(tmpBlock, 0, out, i, cipher.length - i);
}
return out;
}
Example #21
| Source File: ECKey.java From wkcwallet-java with Apache License 2.0 | 5 votes |
|
/**
* Decrypt cipher by AES in SIC(also know as CTR) mode
*
* @param cipher
* -proper cipher
* @return decrypted cipher, equal length to the cipher.
* @deprecated should not use EC private scalar value as an AES key
*/
public byte[] decryptAES(byte[] cipher) {
if (privKey == null) {
throw new MissingPrivateKeyException();
}
if (!(privKey instanceof BCECPrivateKey)) {
throw new UnsupportedOperationException("Cannot use the private key as an AES key");
}
AESFastEngine engine = new AESFastEngine();
SICBlockCipher ctrEngine = new SICBlockCipher(engine);
KeyParameter key = new KeyParameter(BigIntegers.asUnsignedByteArray(((BCECPrivateKey) privKey).getD()));
ParametersWithIV params = new ParametersWithIV(key, new byte[16]);
ctrEngine.init(false, params);
int i = 0;
byte[] out = new byte[cipher.length];
while (i < cipher.length) {
ctrEngine.processBlock(cipher, i, out, i);
i += engine.getBlockSize();
if (cipher.length - i < engine.getBlockSize())
break;
}
// process left bytes
if (cipher.length - i > 0) {
byte[] tmpBlock = new byte[16];
System.arraycopy(cipher, i, tmpBlock, 0, cipher.length - i);
ctrEngine.processBlock(tmpBlock, 0, tmpBlock, 0);
System.arraycopy(tmpBlock, 0, out, i, cipher.length - i);
}
return out;
}
Example #22
| Source File: TransactionTest.java From ethereumj with MIT License | 5 votes |
|
@Test
public void testTransactionFromNew2() throws MissingPrivateKeyException {
byte[] privKeyBytes = Hex.decode("c85ef7d79691fe79573b1a7064c19c1a9819ebdbd1faaab1a8ec92344438aaf4");
String RLP_TX_UNSIGNED = "eb8085e8d4a510008227109413978aee95f38490e9769c39b2773ed763d9cd5f872386f26fc1000080808080";
String RLP_TX_SIGNED = "f86b8085e8d4a510008227109413978aee95f38490e9769c39b2773ed763d9cd5f872386f26fc10000801ba0eab47c1a49bf2fe5d40e01d313900e19ca485867d462fe06e139e3a536c6d4f4a014a569d327dcda4b29f74f93c0e9729d2f49ad726e703f9cd90dbb0fbf6649f1";
String HASH_TX_UNSIGNED = "328ea6d24659dec48adea1aced9a136e5ebdf40258db30d1b1d97ed2b74be34e";
byte[] nonce = BigIntegers.asUnsignedByteArray(BigInteger.ZERO);
byte[] gasPrice = Hex.decode("e8d4a51000"); // 1000000000000
byte[] gas = Hex.decode("2710"); // 10000
byte[] recieveAddress = Hex.decode("13978aee95f38490e9769c39b2773ed763d9cd5f");
byte[] value = Hex.decode("2386f26fc10000"); //10000000000000000"
byte[] data = new byte[0];
Transaction tx = new Transaction(nonce, gasPrice, gas, recieveAddress, value, data);
// Testing unsigned
String encodedUnsigned = Hex.toHexString(tx.getEncoded());
assertEquals(RLP_TX_UNSIGNED, encodedUnsigned);
assertEquals(HASH_TX_UNSIGNED, Hex.toHexString(tx.getHash()));
// Testing signed
tx.sign(privKeyBytes);
String encodedSigned = Hex.toHexString(tx.getEncoded());
assertEquals(RLP_TX_SIGNED, encodedSigned);
assertEquals(HASH_TX_UNSIGNED, Hex.toHexString(tx.getHash()));
}
Example #23
| Source File: EthTransaction.java From BlockchainWallet-Crypto with GNU General Public License v3.0 | 5 votes |
|
public static EthTransaction create(String to, BigInteger amount, BigInteger nonce,
BigInteger gasPrice,
BigInteger gasLimit, Integer chainId) {
return new EthTransaction(BigIntegers.asUnsignedByteArray(nonce),
BigIntegers.asUnsignedByteArray(gasPrice),
BigIntegers.asUnsignedByteArray(gasLimit),
Hex.decode(to),
BigIntegers.asUnsignedByteArray(amount),
null,
chainId);
}
Example #24
| Source File: EthTransaction.java From BlockchainWallet-Crypto with GNU General Public License v3.0 | 5 votes |
|
/**
* @deprecated use
* {@link EthTransaction#create(String, BigInteger, BigInteger, BigInteger, BigInteger, Integer)} instead
*/
public static EthTransaction create(String to, BigInteger amount, BigInteger nonce,
BigInteger gasPrice, BigInteger gasLimit) {
return new EthTransaction(BigIntegers.asUnsignedByteArray(nonce),
BigIntegers.asUnsignedByteArray(gasPrice),
BigIntegers.asUnsignedByteArray(gasLimit),
Hex.decode(to),
BigIntegers.asUnsignedByteArray(amount),
null);
}
Example #25
| Source File: TransactionTest.java From ethereumj with MIT License | 5 votes |
|
@Test
public void testTransactionCreateContract() {
// String rlp = "f89f808609184e72a0008203e8808203e8b84b4560005444602054600f60056002600a02010b0d630000001d596002602054630000003b5860066000530860056006600202010a0d6300000036596004604054630000003b5860056060541ca0ddc901d83110ea50bc40803f42083afea1bbd420548f6392a679af8e24b21345a06620b3b512bea5f0a272703e8d6933177c23afc79516fd0ca4a204aa6e34c7e9";
byte[] senderPrivKey = HashUtil.sha3("cow".getBytes());
byte[] nonce = BigIntegers.asUnsignedByteArray(BigInteger.ZERO);
byte[] gasPrice = Hex.decode("09184e72a000"); // 10000000000000
byte[] gas = Hex.decode("03e8"); // 1000
byte[] recieveAddress = null;
byte[] endowment = Hex.decode("03e8"); //10000000000000000"
byte[] init = Hex.decode("4560005444602054600f60056002600a02010b0d630000001d596002602054630000003b5860066000530860056006600202010a0d6300000036596004604054630000003b586005606054");
Transaction tx1 = new Transaction(nonce, gasPrice, gas,
recieveAddress, endowment, init);
tx1.sign(senderPrivKey);
byte[] payload = tx1.getEncoded();
System.out.println(Hex.toHexString(payload));
Transaction tx2 = new Transaction(payload);
// tx2.getSender();
String plainTx1 = Hex.toHexString(tx1.getEncodedRaw());
String plainTx2 = Hex.toHexString(tx2.getEncodedRaw());
// Transaction tx = new Transaction(Hex.decode(rlp));
System.out.println("tx1.hash: " + Hex.toHexString(tx1.getHash()));
System.out.println("tx2.hash: " + Hex.toHexString(tx2.getHash()));
System.out.println();
System.out.println("plainTx1: " + plainTx1 );
System.out.println("plainTx2: " + plainTx2 );
System.out.println( Hex.toHexString(tx2.getSender()));
}
Example #26
| Source File: CallTransaction.java From BlockchainWallet-Crypto with GNU General Public License v3.0 | 5 votes |
|
public static EthTransaction createRawTransaction(BigInteger nonce, BigInteger gasPrice, BigInteger gasLimit, String toAddress,
BigInteger value, byte[] data) {
EthTransaction tx = new EthTransaction(BigIntegers.asUnsignedByteArray(nonce),
BigIntegers.asUnsignedByteArray(gasPrice),
BigIntegers.asUnsignedByteArray(gasLimit),
toAddress == null ? null : Hex.decode(toAddress),
BigIntegers.asUnsignedByteArray(value),
data,
null);
return tx;
}
Example #27
| Source File: Peer.java From gsc-core with GNU Lesser General Public License v3.0 | 5 votes |
|
public byte[] calcDistance(Peer toPeer) {
BigInteger aaPeer = new BigInteger(getId());
BigInteger bbPeer = new BigInteger(toPeer.getId());
BigInteger distance = aaPeer.xor(bbPeer);
return BigIntegers.asUnsignedByteArray(distance);
}
Example #28
| Source File: ECKey.java From gsc-core with GNU Lesser General Public License v3.0 | 5 votes |
|
/**
* Decrypt cipher by AES in SIC(also know as CTR) mode
*
* @param cipher -proper cipher
* @return decrypted cipher, equal length to the cipher.
* @deprecated should not use EC private scalar value as an AES key
*/
public byte[] decryptAES(byte[] cipher) {
if (privKey == null) {
throw new MissingPrivateKeyException();
}
if (!(privKey instanceof BCECPrivateKey)) {
throw new UnsupportedOperationException("Cannot use the private " +
"key as an AES key");
}
AESEngine engine = new AESEngine();
SICBlockCipher ctrEngine = new SICBlockCipher(engine);
KeyParameter key = new KeyParameter(BigIntegers.asUnsignedByteArray((
(BCECPrivateKey) privKey).getD()));
ParametersWithIV params = new ParametersWithIV(key, new byte[16]);
ctrEngine.init(false, params);
int i = 0;
byte[] out = new byte[cipher.length];
while (i < cipher.length) {
ctrEngine.processBlock(cipher, i, out, i);
i += engine.getBlockSize();
if (cipher.length - i < engine.getBlockSize()) {
break;
}
}
// process left bytes
if (cipher.length - i > 0) {
byte[] tmpBlock = new byte[16];
System.arraycopy(cipher, i, tmpBlock, 0, cipher.length - i);
ctrEngine.processBlock(tmpBlock, 0, tmpBlock, 0);
System.arraycopy(tmpBlock, 0, out, i, cipher.length - i);
}
return out;
}
Example #29
| Source File: ProvisioningPublicKeyState.java From Android-nRF-Mesh-Library with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
private void generateKeyPairs() {
try {
final ECNamedCurveParameterSpec parameterSpec = ECNamedCurveTable.getParameterSpec("secp256r1");
final KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("ECDH", "SC");
keyPairGenerator.initialize(parameterSpec);
final KeyPair keyPair = keyPairGenerator.generateKeyPair();
final ECPublicKey publicKey = (ECPublicKey) keyPair.getPublic();
mProvisionerPrivaetKey = (ECPrivateKey) keyPair.getPrivate();
final ECPoint point = publicKey.getQ();
final BigInteger x = point.getXCoord().toBigInteger();
final BigInteger y = point.getYCoord().toBigInteger();
final byte[] tempX = BigIntegers.asUnsignedByteArray(32, x);
final byte[] tempY = BigIntegers.asUnsignedByteArray(32, y);
Log.v(TAG, "X: length: " + tempX.length + " " + MeshParserUtils.bytesToHex(tempX, false));
Log.v(TAG, "Y: length: " + tempY.length + " " + MeshParserUtils.bytesToHex(tempY, false));
final byte[] tempXY = new byte[64];
System.arraycopy(tempX, 0, tempXY, 0, tempX.length);
System.arraycopy(tempY, 0, tempXY, tempY.length, tempY.length);
mUnprovisionedMeshNode.setProvisionerPublicKeyXY(tempXY);
Log.v(TAG, "XY: " + MeshParserUtils.bytesToHex(tempXY, true));
} catch (Exception e) {
e.printStackTrace();
}
}
Example #30
| Source File: ECKeySecp256k1.java From aion with MIT License | 5 votes |
|
/**
* Decrypt cipher by AES in SIC(also know as CTR) mode
*
* @param cipher -proper cipher
* @return decrypted cipher, equal length to the cipher.
* @deprecated should not use EC private scalar value as an AES key
*/
public byte[] decryptAES(byte[] cipher) {
if (privKey == null) {
throw new MissingPrivateKeyException();
}
if (!(privKey instanceof BCECPrivateKey)) {
throw new UnsupportedOperationException("Cannot use the private key as an AES key");
}
AESFastEngine engine = new AESFastEngine();
SICBlockCipher ctrEngine = new SICBlockCipher(engine);
KeyParameter key =
new KeyParameter(
BigIntegers.asUnsignedByteArray(((BCECPrivateKey) privKey).getD()));
ParametersWithIV params = new ParametersWithIV(key, new byte[16]);
ctrEngine.init(false, params);
int i = 0;
byte[] out = new byte[cipher.length];
while (i < cipher.length) {
ctrEngine.processBlock(cipher, i, out, i);
i += engine.getBlockSize();
if (cipher.length - i < engine.getBlockSize()) {
break;
}
}
// process left bytes
if (cipher.length - i > 0) {
byte[] tmpBlock = new byte[16];
System.arraycopy(cipher, i, tmpBlock, 0, cipher.length - i);
ctrEngine.processBlock(tmpBlock, 0, tmpBlock, 0);
System.arraycopy(tmpBlock, 0, out, i, cipher.length - i);
}
return out;
}
