Permission denied (publickey).

(That's my life while learning how to harden security on a server and then locking myself out.)

What is this sorcery?

Ok, I need to vent a little bit about myself. Just got back from my 2 weeks vacations. Met with everyone, caught up on everything that has happened, booted my lap top and tried to ssh into the servers to see log files if anything out of the ordinary has happened.

Well, I was having "Permission denied (publickey)." . Well fuck. Tried on other servers and same thing.

I got panicked, thinking how the fuck did we get hacked? The ssh key is only on my laptop, and an encrypted backup exists only in Bitwarden account. If yes, why are the systems intact and working well? Kept scratching my head for hours. Well, I was trying to log in with user "root" instead of "admin". I always mistake these two names. Rusty brain ._.

using System;
using System.Text;
using System.Text.Encodings;
//Bitwise XOR operator is represented by ^. It performs bitwise XOR operation on the corresponding bits of two operands. If the corresponding bits are same, the result is 0. If the corresponding bits are different, the result is 1.
//If the operands are of type bool, the bitwise XOR operation is equivalent to logical XOR operation between them.
using System.Text.Unicode;
using System.Windows;
using System.IO;
namespace Encryption2plzWOrk
{
class Program
{
static void Main(string[] args)
{
//random is basically a second sepret key for RSA exhanges I know there probaley is a better way to do this please tell me in github comments.//
Random r = new Random();
int random = r.Next(2000000,500000000);
int privatekey = 0;
int publickey = 0;
string privateKeyString = Console.ReadLine();
byte[] bytes3 = Encoding.ASCII.GetBytes(privateKeyString);
foreach(byte b in bytes3)
{
privatekey = b + privatekey;
}
int permutations = random/ 10000;
if(privatekey < 256)
{
while(permutations > 0)
{
foreach (byte b in bytes3)
{
privatekey = privatekey + (privatekey ^ permutations)*20;
}
}
}
publickey = privatekey*random;
Console.WriteLine("your public key is {0}",publickey);
}
}
}
would this be considerd ok HOBBYIST encryption and if not how would I do a slow improvment I used bitwise to edit bits so thats a check :D