Geração de HASH do SKU pra enviar para Vtex, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Microsoft (R) Visual C# Compiler version 2.9.0.63208 (958f2354)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            int senha = "07E36D3F-C3B8-4D84-BFB5-017E8ECB474E".GetDeterministicHashCode();
            string novaSenha = senha < 0 ? $"N{senha * -1}" : $"P{senha}";
            Console.WriteLine(senha);
            Console.WriteLine(novaSenha);
        }
    }
    
    public static class StringExtensions
    {        
        public static int GetDeterministicHashCode(this string str)
        {
            unchecked
            {
                int hash1 = (5381 << 16) + 5381;
                int hash2 = hash1;

for (int i = 0; i < str.Length; i += 2)
                {
                    hash1 = ((hash1 << 5) + hash1) ^ str[i];
                    if (i == str.Length - 1)
                        break;
                    hash2 = ((hash2 << 5) + hash2) ^ str[i + 1];
                }

return hash1 + (hash2 * 1566083941);
            }
        }
    }
}

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