public static byte[] GetPublicKey(this Protocol.Transaction transaction)
{
if (transaction.Signature.Count > 0)
{
try
{
return(ECKey.RecoverPubBytesFromSignature(
new ECDSASignature(transaction.Signature.ElementAt(0).ToByteArray()),
Crypto.Sha256.Hash(transaction.RawData.ToByteArray()), false));
}
catch (Exception)
{
return(null);
}
}
return(null);
}
public TransactionMessage(Protocol.Transaction tx)
{
this.transaction = new TransactionCapsule(tx);
this.type = (byte)MessageTypes.MsgType.TX;
this.data = tx.ToByteArray();
}
public static string GetTxid(this Protocol.Transaction transaction)
{
var txid = transaction.RawData.ToByteArray().ToSHA256Hash().ToHex();
return(txid);
}
public static byte[] DecryptByTransaction(this string data, Protocol.Transaction transaction)
{
var publicKey = transaction.GetPublicKey();
return(publicKey == null ? null : data.DecryptByPublicKey(publicKey));
}
