A challenge!

[GrowlZ1010]

Originally posted by Falados
This is a very insecure way of encrypting data =\
Ofcourse you knew that, but try DES or RC# encryption

Naturally. They were designed over months, years maybe, by experts, for super-secure communications. This was designed by a high school student in an hour due to boredom.

Originally won by -Ramirez-
I'm not sure if you expected people to be able to create a script to figure out the checksum... as that's rather impossible, since the script won't have a clue what to look for.

Oh, no. Codebreaking by any means possible. I just wanted to see how easy it would be.

Originally won by -Ramirez-
As for deciphering the string with the correct checksum, I made a script to do that. If you want me to post it, I will.

Sounds good. Let me check it against mine and see how much more efficient yours is.

Just out of interest, how did you get the last four digits of the final checksum, and how hard do you think it would be to get an entire one without any obvious clues or hints?