Thursday, May 10, 2007

My Science Comp Answers

are stored encrypted in this text file: http://up.cw.siteoz.info/encryptedsciencecomp.txt (I've been told I'm good at science)

Now here's an introduction to the fine science of cryptography.

The encryption is given by the formula:

Where:

E is the encrypted text

P is the plain text

n is the position in the text

K is the key



E_n = P_n + (n + K)^2



By simple algebraric moving stuff around, you can find the formula for P_n. In the case of these answers, the key I used is between 0 and 5, so it's easy to brute force.

No comments: