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

public class GHEncryption : MonoBehaviour
{
    private static int[] encryptionKey = new int[]
    {
        7,
        3,
        2,
        5,
        4,
        2,
        5,
        5,
        3
    };

    public static string SimpleEncrypt(string iInput)
    {
        char[] array = iInput.ToCharArray();
        int num = GHEncryption.encryptionKey.Length;
        StringBuilder stringBuilder = new StringBuilder();
        for (int i = 0; i < array.Length; i++)
        {
            stringBuilder.Append((char)((int)array[i] + GHEncryption.encryptionKey[i % num]));
        }
        return stringBuilder.ToString();
    }

    public static string SimpleDecrypt(string iInput)
    {
        char[] array = iInput.ToCharArray();
        int num = GHEncryption.encryptionKey.Length;
        StringBuilder stringBuilder = new StringBuilder();
        for (int i = 0; i < array.Length; i++)
        {
            stringBuilder.Append((char)((int)array[i] - GHEncryption.encryptionKey[i % num]));
        }
        return stringBuilder.ToString();
    }

    public static string Md5Sum(string strToEncrypt)
    {
        HashAlgorithm hashAlgorithm = MD5.Create();
        Encoding encoding = new UTF8Encoding();
        StringBuilder stringBuilder = new StringBuilder();
        byte[] array = hashAlgorithm.ComputeHash(encoding.GetBytes(strToEncrypt));
        for (int i = 0; i < array.Length; i++)
        {
            byte b = array[i];
            stringBuilder.Append(b.ToString("x2"));
        }
        return stringBuilder.ToString();
    }
}