public Account(string privateKey)
{
string publicKey = KeyTools.GetPublicKeyFromPrivateKey(privateKey, true);
this.address = KeyTools.GetAddressFromPublicKey(publicKey);
this.keys = new ECKeyPair(new BigInteger(privateKey, 16), new BigInteger(publicKey, 16));
}
public static string GetAddressForContract(Transaction.Transaction tx)
{
string senderAddress = KeyTools.GetAddressFromPublicKey(tx.SenderPubKey);
SHA256Managed.Create().ComputeHash(ByteUtil.HexStringToByteArray(senderAddress));
Sha256Digest sha = new Sha256Digest();
byte[] senderAddressBytes = ByteUtil.HexStringToByteArray(senderAddress);
sha.BlockUpdate(senderAddressBytes, 0, senderAddressBytes.Count());
int nonce = 0;
if (!string.IsNullOrEmpty(tx.Nonce))
{
nonce = int.Parse(tx.Nonce);
nonce--;
}
string hexNonce = Validation.IntToHex(nonce, 16);
byte[] hexNonceBytes = ByteUtil.HexStringToByteArray(hexNonce);
sha.BlockUpdate(hexNonceBytes, 0, hexNonceBytes.Count());
byte[] bytes = new byte[sha.GetByteLength()];
sha.DoFinal(bytes, 0);
return(ByteUtil.ByteArrayToHexString(bytes).Substring(24, 40));
}
public void GetAddressFromPrivateKey()
{
String privateKey = "e19d05c5452598e24caad4a0d85a49146f7be089515c905ae6a19e8a578a6930";
String address = KeyTools.GetAddressFromPrivateKey(privateKey);
System.Console.WriteLine(address.ToLower());
}
public void GetAddressFromPrivateKey()
{
String privateKey = "a2315cc0cd0a4a0b5b58e2e270017d77ac79302d53199d0cf351669497466840";
String address = KeyTools.GetAddressFromPrivateKey(privateKey);
System.Console.WriteLine(address.ToLower());
}
public void GenerateKeyPair()
{
ECKeyPair keys = KeyTools.GenerateKeyPair();
ECPoint pubKey = secp256k1.Curve.DecodePoint(keys.PublicKey.ToByteArray());
Assert.AreEqual(keys.PrivateKey.CompareTo(BigInteger.Zero), 1);
Assert.IsTrue(pubKey.IsValid());
}
public void GetAddressFromPublicKey()
{
System.Console.WriteLine(KeyTools.GetAddressFromPublicKey("03B1785FB998CF2A650D064A7E4F6C34EAB5FC44600C81D4240644C89430618AF1"));
String noPad = "38959e0b7b9c545dc055ab668f8fbaef207e845c590eca4b14993619fff0f723d";
String padded = "038959e0b7b9c545dc055ab668f8fbaef207e845c590eca4b14993619fff0f723d";
Assert.AreEqual(KeyTools.GetAddressFromPublicKey(noPad), KeyTools.GetAddressFromPublicKey(padded));
}
public string CreateAccount()
{
Account account = new Account(KeyTools.GenerateKeyPair());
this.accounts.Add(account.Address.ToUpper(), account);
if (defaultAccount == null)
{
defaultAccount = account;
}
return(account.Address);
}
public void GetPublicKeyFromPrivateKey()
{
String privateKey = "24180e6b0c3021aedb8f5a86f75276ee6fc7ff46e67e98e716728326102e91c9";
String publicKey = KeyTools.GetPublicKeyFromPrivateKey(privateKey, false);
Assert.AreEqual(publicKey.ToLower(), "04163fa604c65aebeb7048c5548875c11418d6d106a20a0289d67b59807abdd299d4cf0efcf07e96e576732dae122b9a8ac142214a6bc133b77aa5b79ba46b3e20");
privateKey = "b776d8f068d11b3c3f5b94db0fb30efea05b73ddb9af1bbd5da8182d94245f0b";
publicKey = KeyTools.GetPublicKeyFromPrivateKey(privateKey, false);
Assert.AreEqual(publicKey.ToLower(), "04cfa555bb63231d167f643f1a23ba66e6ca1458d416ddb9941e95b5fd28df0ac513075403c996efbbc15d187868857e31cf7be4d109b4f8cb3fd40499839f150a");
privateKey = "e19d05c5452598e24caad4a0d85a49146f7be089515c905ae6a19e8a578a6930";
System.Console.WriteLine(KeyTools.GetPublicKeyFromPrivateKey(privateKey, true));
}
public void GeneratePrivateKey()
{
int i = 0;
while (i < 100000)
{
i++;
string privateKey = KeyTools.GeneratePrivateKey();
if (privateKey.Length != 64)
{
throw new Exception("generator err");
}
Console.WriteLine(privateKey);
}
}
public void TestKeyAndAddress()
{
int i = 0;
while (i < 100)
{
i++;
string privateKey = KeyTools.GeneratePrivateKey();
if (privateKey.Length != 64)
{
throw new Exception("generator err");
}
string publicKey = KeyTools.GetPublicKeyFromPrivateKey(privateKey, true);
Assert.AreEqual(KeyTools.GetAddressFromPrivateKey(privateKey), KeyTools.GetAddressFromPublicKey(publicKey.ToLower()));
}
}
public Transaction.Transaction Sign(Transaction.Transaction transaction)
{
if (transaction.ToAddr.ToUpper().StartsWith("0X"))
{
transaction.ToAddr = transaction.ToAddr.Substring(2);
}
if (!Validation.IsBech32(transaction.ToAddr) && !Validation.IsValidChecksumAddress("0x" + transaction.ToAddr))
{
throw new Exception("not checksum address or bech32");
}
if (Validation.IsBech32(transaction.ToAddr))
{
transaction.ToAddr = Bech32.FromBech32Address(transaction.ToAddr);
}
if (Validation.IsValidChecksumAddress("0x" + transaction.ToAddr))
{
transaction.ToAddr = "0x" + transaction.ToAddr;
}
TxParams txParams = transaction.ToTransactionParam();
if (txParams != null && !string.IsNullOrEmpty(txParams.SenderPubKey))
{
string address = KeyTools.GetAddressFromPublicKey(txParams.SenderPubKey).ToUpper();
Account account = accounts[address];
if (account == null)
{
throw new Exception("Could not sign the transaction with" + address + " as it does not exist");
}
return(SignWith(transaction, account));
}
if (defaultAccount == null)
{
throw new Exception("This wallet has no default account.");
}
return(this.SignWith(transaction, this.defaultAccount));
}
public string ToFile(string privateKey, string passphrase, KDFType type)
{
return(KeyTools.EencryptPrivateKey(privateKey, passphrase, type));
}
public static Account FromFile(string file, string passphrase)
{
string privateKey = KeyTools.DecryptPrivateKey(file, passphrase);
return(new Account(privateKey));
}
public Account(ECKeyPair keys)
{
this.keys = keys;
this.address = KeyTools.GetAddressFromPublicKey(ByteUtil.ByteArrayToHexString(this.keys.PublicKey.ToByteArray()));
}
public void GetAddressFromPublicKey()
{
System.Console.WriteLine(KeyTools.GetAddressFromPublicKey("0246e7178dc8253201101e18fd6f6eb9972451d121fc57aa2a06dd5c111e58dc6a"));
}
public void GenerateRandomBytes()
{
byte[] bytes = KeyTools.GenerateRandomBytes(32);
Assert.NotNull(bytes);
Assert.IsTrue(32 == bytes.Length);
}
