Really really secure registration

It may not just a VB thing, so...

I want to make a really secure registration system (i.e., nag screens until you enter a code). My current idea:

• User sends check and their name to me
• I receive check and make a code from their name
• I mail them their code and post that code to a hidden file online
• User tries to enter code in PassProg
• PassProg goes online and verifies that the code exists. If it doesn't, registration is denied.
• If the registration is successful, the code is removed from the hidden online file by me

It sounds secure, but here are the flaws. How could I fix them?

• The path to the hidden file could be found in PassProg and changed by a hacker, so it goes to their own file
• Something else that I forgot...

Any ideas?

The only secure computer is one that's unplugged, locked in a
safe, and buried 20 feet under the ground in a secret location...
and i'm not even too sure about that one"--Dennis Huges, FBI.

Thanks. :rolleyes:

hehe. he's right though.

I said secure REGISTRATION, not secure COMPUTER. :mad:

You need soooooooo much secure registeration program for just $9?;)

Why not try not releasing the software? *grin*

you can encrypt the uploaded file.

then download it and encrypt it, get the key then delete it.

I'm not quite clear on what you mean...

That really won't help a thing...
People will just crack the program to make it think that it got the "ok" from the reg server :(