?? sha256 the string and you are not going to be able to get back to the original from that output.
Edit: The small amount of IP addresses makes it easy to brute force through all of them.
Edit: The small amount of IP addresses makes it easy to brute force through all of them.
From there, you have a direct correlation between the IP and its resulting hash. Meaning you can easily see what the original input was.
You don’t need to break a hash to know what the original input was.