public static (byte[] signature, byte[] publicKey) Sign(ExpressWalletAccount account, byte[] data)
{
var devAccount = DevWalletAccount.FromExpressWalletAccount(account);
var key = devAccount.GetKey();
if (key == null)
{
throw new InvalidOperationException();
}
var publicKey = key.PublicKey.EncodePoint(false).AsSpan().Slice(1).ToArray();
var signature = Neo.Cryptography.Crypto.Default.Sign(data, key.PrivateKey, publicKey);
return(signature, key.PublicKey.EncodePoint(true));
}
