using System;
using System.Text;
using System.Security.Cryptography;

public class Program {
	public static void Main() {
		var sha512 = new SHA512Managed();
		byte[] hash = sha512.ComputeHash(Encoding.UTF8.GetBytes("teste"));
		var result = new StringBuilder();
		foreach (byte b in hash) result.Append($"{b:x2}");
		Console.WriteLine(result);
	}
}

//https://pt.stackoverflow.com/q/327973/101