I quit Minecraft then I kinda came back for like all of a few days on my friend's server and I needed some security for my computer so nobody messes it up..
I found this quite useful, you can use it how you would like..
I wanted to hide my password from the people on the server so I figured I'd use md5 in order to hide it.
I made a website to convert my queries into md5 and echo the output.
Example: http://pastebin.com/diMwJXuy
How it works is you request a query to the website using 'cn' as the GET request.
So, as in the example, I have the computer make a request using the convert link, the website outputs the query in Md5 and if check it with the password.
The way you can use it is going on to a website and converting your desired password into MD5 (or using mine) then create a variable on the computer called password with the md5 hash encrypted password as the string.
local convertlink = "http://md5hash.netne.net/md5.php?cn="
local pwd = '098f6bcd4621d373cade4e832627b4f6'
Then do the normal input = read("*") stuff, and create another variable for the link.
local input = read("*")
local s = http.get(convertlink .. input).readLine()
That will read the md5 result from the website and set it to s..
Then do the normal "checking if password is correct"
if (s == pwd) then
print("Access granted.")
end
And that's it.
You can use the website for anything other than that too.. it doesn't just have to be password programs, but I can't imagine there would be any other reason..
Just remember: convertlink is "http://md5hash.netne.net/md5.php?cn=<your_request_here>"