encryption ?


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Thread: encryption ?

  1. #1
    Join Date
    Jul 2007
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    paris
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    Default encryption ?

    Hello

    I'm break the encryption in this manner and with
    Encrypt text voluntarily in this way.

    0123456789
    9876543210
    0000000000
    = = = = = = = = = =

    Encryption for each group of figures to try to find repetitions
    Or other things which may put me on the track.

    I do not understand this format:

    |format = "{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}"

    DT0PE987A654C321


    0040AA3D > 8D04C5 20A2440>LEA EAX,DWORD PTR DS:[EAX*8+44>;

    Cases 3,4,5,6,7,8,9,A,B,C,D,E,F,10,11,12,13,14,15,16,17, 18 of switch 0040AA21
    Attached Files Attached Files

  2. #2
    Join Date
    Jul 2007
    Location
    paris
    Posts
    22


    Did you find this post helpful? Yes | No

    Default encryption data

    Hello

    Thank you for your answer but I do not know anything and I'm looking on various forums and
    Nobody can tell me what encryption?
    .
    This text comes from an encrypted electronic card-based and pic16f876 eeprom
    24lc512.

    The microcontroller saves 40 bytes of data and only the maximum
    numeric characters. 0123456789.

    But before it encrypts the data and that I am reading with a terminal
    data are received crypts.


    As encryption is obscured by characters, figures, letters of alphabet

    I did tests with a time 00: 00 and the date 01/01 / 2000 and I made a
    every minute backup, backup 00:00, 00:01,
    00:02, 00:03, 00:04, 00:05, 00:06, 00:07, 00:08, 00:09, 00:10
    In order to understand how the encryption is done, so + 1 each time
    Even with very little data that is not obvious.

    And I do not know how?

    Here are links where you can download programs and screenshots.
    Thank you for your help

    http://dl.free.fr/pZZOtQt48

    http://dl.free.fr/akZIJYI3k

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