public string SignTransaction(string key, string to, BigInteger amount, BigInteger nonce, BigInteger gasPrice,
BigInteger gasLimit, string data)
{
var transaction = new Transaction(to, amount, nonce, gasPrice, gasLimit, data);
transaction.Sign(new ECKey(key.HexToByteArray(), true));
return transaction.GetRLPEncoded().ToHex();
}
public void ShouldCreateASignedTransaction()
{
var privateKey = "b5b1870957d373ef0eeffecc6e4812c0fd08f554b37b233526acc331bf1544f7";
var sendersAddress = "12890d2cce102216644c59daE5baed380d84830c";
var publicKey =
"87977ddf1e8e4c3f0a4619601fc08ac5c1dcf78ee64e826a63818394754cef52457a10a599cb88afb7c5a6473b7534b8b150d38d48a11c9b515dd01434cceb08";
//data use for other tools for comparison
Debug.WriteLine(new HexBigInteger(10000).HexValue);
Debug.WriteLine(new HexBigInteger(324).HexValue);
Debug.WriteLine(new HexBigInteger(10000000000000).HexValue);
Debug.WriteLine(new HexBigInteger(21000).HexValue);
//*****************************
//order in transaction = nonce, gasPrice, gasLimit, receiveAddress, value, data
//***************************
var nonce = 324.ToBytesForRLPEncoding();
var amount = 10000.ToBytesForRLPEncoding();
var to = "0x13f022d72158410433cbd66f5dd8bf6d2d129924".HexToByteArray();
var gasPrice = 10000000000000.ToBytesForRLPEncoding();
var gasLimit = 21000.ToBytesForRLPEncoding();
var data = "".HexToByteArray();
//Create a transaction from scratch
var tx = new SimpleRLPSigner(new byte[][] {nonce, gasPrice, gasLimit, to, amount, data});
tx.Sign(new ECKey(privateKey.HexToByteArray(), true));
var encoded = tx.GetRLPEncoded();
var rlp =
"f8698201448609184e72a0008252089413f022d72158410433cbd66f5dd8bf6d2d129924822710801ca0b1874eb8dab80e9072e57b746f8f0f281890568fd655488b0a1f5556a117775ea06ea87e03a9131cae14b5420cbfeb984bb2641d76fb32327d87cf0c9c0ee8f234";
Assert.Equal(rlp, encoded.ToHex());
//data used for other tools for comparison
Debug.WriteLine(encoded.ToHex());
Assert.Equal(EthECKey.GetPublicAddress(privateKey), tx.Key.GetPublicAddress());
var tx3 = new SimpleRLPSigner(rlp.HexToByteArray(), 6);
Assert.Equal(tx.Data[5], tx3.Data[5] ?? new byte[] {});
var tx2 = new Transaction(tx.GetRLPEncoded());
Assert.Equal(EthECKey.GetPublicAddress(privateKey), tx2.Key.GetPublicAddress());
//gas limit order 3
Assert.Equal(tx.Data[2].ToHex(), tx3.Data[2].ToHex());
//nonce order 1
Assert.Equal(tx.Data[0].ToHex(), tx3.Data[0].ToHex());
// gas price order 2
Assert.Equal(tx.Data[1].ToHex(), tx3.Data[1].ToHex());
//value order 5
Assert.Equal(tx.Data[4].ToHex(), tx3.Data[4].ToHex());
Assert.Equal(tx.RawHash.ToHex(), tx3.RawHash.ToHex());
Assert.Equal(tx3.Key.GetPublicAddress(), tx.Key.GetPublicAddress());
Assert.Equal(tx2.RawHash.ToHex(), tx3.RawHash.ToHex());
Assert.Equal(tx2.Key.GetPublicAddress(), tx.Key.GetPublicAddress());
}
public void ShouldResolveAddress()
{
//data from https://github.com/ethereum/go-ethereum/blob/506c9277911746dfbab0a585aee736bd3095f206/tests/files/TransactionTests/Homestead/ttTransactionTest.json
var rlp =
"0xf87c80018261a894095e7baea6a6c7c4c2dfeb977efac326af552d870a9d00000000000000000000000000010000000000000000000000000000001ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a01fffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804";
var tx = new Transaction(rlp.HexToByteArray());
Assert.Equal("67719a47cf3e3fe77b89c994d85395ad0f899d86", tx.Key.GetPublicAddress());
rlp =
"0xf85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a01fffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804";
tx = new Transaction(rlp.HexToByteArray());
Assert.Equal("963f4a0d8a11b758de8d5b99ab4ac898d6438ea6", tx.Key.GetPublicAddress());
}
public void ShouldCreateASignedTransaction()
{
var privateKey = "b5b1870957d373ef0eeffecc6e4812c0fd08f554b37b233526acc331bf1544f7";
var sendersAddress = "12890d2cce102216644c59daE5baed380d84830c";
var publicKey =
"87977ddf1e8e4c3f0a4619601fc08ac5c1dcf78ee64e826a63818394754cef52457a10a599cb88afb7c5a6473b7534b8b150d38d48a11c9b515dd01434cceb08";
//data use for other tools for comparison
Debug.WriteLine(new HexBigInteger(10000).HexValue);
Debug.WriteLine(new HexBigInteger(324).HexValue);
Debug.WriteLine(new HexBigInteger(10000000000000).HexValue);
Debug.WriteLine(new HexBigInteger(21000).HexValue);
//Create a transaction from scratch
var tx = new Transaction("0x13f022d72158410433cbd66f5dd8bf6d2d129924", 10000, 324, 10000000000000, 21000);
tx.Sign(new ECKey(privateKey.HexToByteArray(), true));
var encoded = tx.GetRLPEncoded();
var rlp =
"f8698201448609184e72a0008252089413f022d72158410433cbd66f5dd8bf6d2d129924822710801ca0b1874eb8dab80e9072e57b746f8f0f281890568fd655488b0a1f5556a117775ea06ea87e03a9131cae14b5420cbfeb984bb2641d76fb32327d87cf0c9c0ee8f234";
Assert.Equal(rlp, encoded.ToHex());
//data used for other tools for comparison
Debug.WriteLine(encoded.ToHex());
Assert.Equal(EthECKey.GetPublicAddress(privateKey), tx.Key.GetPublicAddress());
var tx3 = new Transaction(rlp.HexToByteArray());
Assert.Equal(tx.Data, tx3.Data ?? new byte[] { });
Debug.WriteLine(tx.ToJsonHex());
var tx2 = new Transaction(tx.GetRLPEncoded());
Assert.Equal(EthECKey.GetPublicAddress(privateKey), tx2.Key.GetPublicAddress());
Assert.Equal(tx.GasLimit.ToHex(), tx3.GasLimit.ToHex());
Assert.Equal(tx.Nonce.ToHex(), tx3.Nonce.ToHex());
Assert.Equal(tx.GasPrice.ToHex(), tx3.GasPrice.ToHex());
Assert.Equal(tx.Value.ToHex(), tx3.Value.ToHex());
Assert.Equal(tx.RawHash.ToHex(), tx3.RawHash.ToHex());
Assert.Equal(tx3.Key.GetPublicAddress(), tx.Key.GetPublicAddress());
Assert.Equal(tx2.RawHash.ToHex(), tx3.RawHash.ToHex());
Assert.Equal(tx2.Key.GetPublicAddress(), tx.Key.GetPublicAddress());
}
public void TestTransactionFromSignedRLP()
{
var tx = new Transaction(RLP_ENCODED_SIGNED_TX.HexToByteArray());
Assert.Equal(HASH_TX, tx.RawHash.ToHex());
Assert.Equal(RLP_ENCODED_SIGNED_TX, tx.GetRLPEncoded().ToHex());
Assert.Equal(BigInteger.Zero, tx.Nonce.ToBigIntegerFromRLPDecoded());
Assert.Equal(testGasPrice.ToBigIntegerFromRLPDecoded(), tx.GasPrice.ToBigIntegerFromRLPDecoded());
Assert.Equal(testGasLimit.ToBigIntegerFromRLPDecoded(), tx.GasLimit.ToBigIntegerFromRLPDecoded());
Assert.Equal(testReceiveAddress.ToHex(), tx.ReceiveAddress.ToHex());
Assert.Equal(testValue.ToBigIntegerFromRLPDecoded(), tx.Value.ToBigIntegerFromRLPDecoded());
Assert.Null(tx.Data);
Assert.Equal(27, tx.Signature.V);
Assert.Equal("eab47c1a49bf2fe5d40e01d313900e19ca485867d462fe06e139e3a536c6d4f4",
tx.Signature.R.ToByteArrayUnsigned().ToHex());
Assert.Equal("14a569d327dcda4b29f74f93c0e9729d2f49ad726e703f9cd90dbb0fbf6649f1",
tx.Signature.S.ToByteArrayUnsigned().ToHex());
}
public void TestTransactionFromUnSignedRLP()
{
var tx = new Transaction(RLP_ENCODED_UNSIGNED_TX.HexToByteArray());
Assert.Equal(RLP_ENCODED_UNSIGNED_TX, tx.GetRLPEncoded().ToHex());
Assert.Equal(BigInteger.Zero, tx.Nonce.ToBigIntegerFromRLPDecoded());
Assert.Equal(testGasPrice.ToBigIntegerFromRLPDecoded(), tx.GasPrice.ToBigIntegerFromRLPDecoded());
Assert.Equal(testGasLimit.ToBigIntegerFromRLPDecoded(), tx.GasLimit.ToBigIntegerFromRLPDecoded());
Assert.Equal(testReceiveAddress.ToHex(), tx.ReceiveAddress.ToHex());
Assert.Equal(testValue.ToBigIntegerFromRLPDecoded(), tx.Value.ToBigIntegerFromRLPDecoded());
Assert.Equal(HASH_TX, tx.RawHash.ToHex());
tx.Sign(new ECKey(KEY.HexToByteArray(), true));
tx.Key.Verify(tx.RawHash, tx.Signature);
Assert.Equal(EthECKey.GetPublicAddress(KEY), tx.Key.GetPublicAddress());
}
public bool VerifyTransaction(string rlp)
{
var transaction = new Transaction(rlp.HexToByteArray());
return transaction.Key.VerifyAllowingOnlyLowS(transaction.RawHash, transaction.Signature);
}
public string GetSenderAddress(string rlp)
{
var transaction = new Transaction(rlp.HexToByteArray());
return transaction.Key.GetPublicAddress();
}
public byte[] GetPublicKey(string rlp)
{
var transaction = new Transaction(rlp.HexToByteArray());
return transaction.Key.GetPubKey(false);
}