Pattern/Decryption

Discussion in 'Computer Programming, Emulation, and Game Modding' started by Auryn, Sep 8, 2016.

  1. Auryn
    OP

    Auryn GBAtemp Advanced Fan

    Member
    538
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    Jul 21, 2011
    Swaziland
    Hi Guys,
    I have spend a lot of money buying some measurement hardware and i find myself with a software for window that came with that thing that sucks!
    Especially the export function is very bullshit because they not output everything it has measured or i have input to it.
    Now i am trying to read their own archive file to that i can export everything how i want and i am not dependant on that stupid software.
    The archive seems simple enough with a lot of space between data so i don't believe there is any compression and there is some Unicode Text in plain view but i can not make out how they have stored values.
    It seems that all numbers are stored in blocks of 8 Bytes and I tracked down some measurements in cm to my list below.
    Note that the program input is in cm (centimeters) and my decimal values are in cm as well so maybe 0.0001cm is actually just a 1mm the same way maybe 1cm is 1000mm.

    0 00 00 00 00 00 00 00 00
    0.0001 8D ED B5 A0 F7 C6 B0 3E
    0.0002 8D ED B5 A0 F7 C6 C0 3E
    0.0003 53 E4 10 71 73 2A C9 3E
    0.0004 8D ED B5 A0 F7 C6 D0 3E
    0.001 F1 68 E3 88 B5 F8 E4 3E
    0.01 2D 43 1C EB E2 36 1A 3F
    0.1 FC A9 F1 D2 4D 62 50 3F
    1 7B 14 AE 47 E1 7A 84 3F
    2 7B 14 AE 47 E1 7A 94 3F
    3 B8 1E 85 EB 51 B8 9E 3F
    4 7B 14 AE 47 E1 7A A4 3F
    5 9A 99 99 99 99 99 A9 3F
    10 9A 99 99 99 99 99 B9 3F
    100 00 00 00 00 00 00 F0 3F

    Here a screenshot of the Hex editor with the area with the value (left side) and the right side is when i save with "nothing" measured (there is some fields that are saved on the archive because they are some constants from the option menu).
    Like i said, a lot of space.

    [​IMG]


    Maybe an usefull info: when i export with the program itself, the max number is 10+comma (0.123456789) but it look like it's still a 8 Bytes block. Those 3E/3F are something very prominent on that archive.

    Does somebody see a pattern or have any ideas how to decrypt this??
    If you think you have an idea but you need more values to test it, just request them, i can input them and send you the 8 Byte block back.
    Thanks