Homomorphic encryption

step 1: use AES in CTR mode
step 2: start flipping bits
step 3: decrypt
notice that the bits that you flipped in the ciphertext are the also flipped in the plaintext
Wow, science!

I actually didn't take the time to read your thread. I'm not bothering to even read either of your two posts, I just like to see my post count go up 1 after I make a post. It's extremely exciting.