/// <summary>
/// 根据传入的账户信息，对可签名的对象进行签名
/// </summary>
/// <param name="signable">要签名的数据</param>
/// <param name="account">用于签名的账户</param>
/// <returns>返回签名后的结果</returns>
public static byte[] Sign(this ISignable signable, Account account)
{
using (account.Decrypt())
{
return(signable.Sign(account.PrivateKey, account.PublicKey.EncodePoint(false).Skip(1).ToArray()));
}
}
public void SignSignable(ISignable signable) => signable.Sign();