RestaurantSite_API/ProRestaurant/Classes/CommonFunctions.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace ProRestaurant.Classes
{
    public class CommonFunctions
    {
        public static string GetHashSHA256(string text)
        {            
            SHA256Managed crypt = new SHA256Managed();
            string hash = string.Empty;
            byte[] crypto = crypt.ComputeHash(Encoding.UTF8.GetBytes(text), 0, Encoding.UTF8.GetByteCount(text));
            foreach (byte bit in crypto)
            {
                hash += bit.ToString("x2");
            }
            return hash;
        }
    }
}