A challenge!

[GrowlZ1010]

The attatched file is a string which I have encrypted using a little encryption script I put together whilst bored. I'd like to see how difficult the algorithm is to crack, so I've taken a text string 183 characters long and run it through the program.

The file looks fairly daunting, and that's probably something to do with the fact that it is. I don't think this will be an easy task, but what the hey! That's the reason I posted this. To see how good the script is.

About the only thing I can tell you is that the original text string is padded based on a user-determined checksum which repeats throughout the string.

Good luck breaking the code, and if enough people show some kind of vague interest in this, I just might post the code that handles encryption and decryption so you can use it yourself.