public byte[] EncodeRLP()
{
var rlp = new List <byte>();
rlp.AddRange(Encode.RLP(Encode.BigIntegerToBytes(m_nonce)));
rlp.AddRange(Encode.RLP(Encode.BigIntegerToBytes(m_gasPrice)));
rlp.AddRange(Encode.RLP(Encode.BigIntegerToBytes(m_gasLimit)));
rlp.AddRange(Encode.RLP(m_to));
rlp.AddRange(Encode.RLP(Encode.BigIntegerToBytes(m_value)));
rlp.AddRange(Encode.RLP(m_initOrData));
rlp.AddRange(Encode.RLP(Encode.BigIntegerToBytes(m_v)));
rlp.AddRange(Encode.RLP(Encode.BigIntegerToBytes(m_r)));
rlp.AddRange(Encode.RLP(Encode.BigIntegerToBytes(m_s)));
return(Encode.RLP(rlp.ToArray(), true));
}
public static byte[] ECDsaSignHash(BigInteger privateKey, byte[] hash)
{
if (!IsPrivateKeyValid(privateKey))
{
throw new Exception("privateKey is invalid.");
}
ECDsa ecdsa = ECDsa.Create(ECCurve.CreateFromFriendlyName("secp256k1")); // windows 10: https://docs.microsoft.com/en-us/windows/desktop/SecCNG/cng-named-elliptic-curves
ECParameters parameters = ecdsa.ExportExplicitParameters(true);
parameters.D = Encode.BigIntegerToBytes(privateKey, 32);
// parameters.Q is not used in SignHash
ecdsa.ImportParameters(parameters);
while (true)
{
byte[] sig = ecdsa.SignHash(hash); // 64 bytes
if (sig[32] < 0x7f) // low s value
{
return(sig);
}
}
}
public static byte[] PublicKeyToBytes(BigInteger publicKeyX, BigInteger publicKeyY)
{
return(Encode.BigIntegerToBytes(publicKeyX, 32).Concat(Encode.BigIntegerToBytes(publicKeyY, 32)).ToArray());
}
void Output(BigInteger privateKey)
{
BigInteger publicKeyX;
BigInteger publicKeyY;
BouncyCastle.ECPrivateKeyToPublicKey(privateKey, out publicKeyX, out publicKeyY);
byte[] publicKey = EllipticCurve.PublicKeyToBytes(publicKeyX, publicKeyY);
byte[] address = ETHAddress.PublicKeyToETHAddress(publicKey);
m_paragraphAddress.Inlines.Add("Private key (confidential): 0x" + Encode.BytesToHex(Encode.BigIntegerToBytes(privateKey, 32)) + "\n");
m_paragraphAddress.Inlines.Add("Public key: 0x" + Encode.BytesToHex(publicKey) + "\n");
m_paragraphAddress.Inlines.Add("ETH address: 0x" + Encode.BytesToHex(address) + "\n");
m_paragraphAddress.Inlines.Add("ETC address: 0x" + Encode.BytesToHex(address) + "\n");
}