Quote Originally Posted by sbog View Post
What are you changing?
it seemed to me that 3 things should be done:
1. autochange every <hr>SK to <hr>XX
2. autochange every <hr>SL to <hr>SK
3. autochange every <hr>XX to <hr>SL

Something occurred to be more complicated?

As for the encryption by repetitive special_adding of the fixed double word.. it's strong!
What is the fixed double word ?
Can you explain further please.
I see that every 4th byte is unencrypted.
The encryption starts first byte after the part number.