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User: BallHooter

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  1. Deciphering Bits on Reversing a Checksum Algorithm? · · Score: 2

    While looking at the test values that you sent to the sign, I noticed something about the 13-14 bits. Without more test cases, you can never be sure.

    The 13-14 bits look like they change with the length of your message. With messages of 'TEST' or 'WICK' the value in 13-14 is 'DA BC'. With a message of 'T', the value in 13-14 is '5A BA'.

    Neat project - keep us posted on the progress!
    Hope this helps.