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Thread: CRC Check

  1. Jan 20th, 2007, 09:18 AM #1
    Vntalk
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    CRC Check

    some programmers use CRC to check if their programs is patch or modified by crackers. I just wonder how could they do that. i do read some articles about CRC, and and i could do is make an app to check the CRC of an other app, but i'm unable to make an app to check for it own integrity. I hope my question is clear enought.
    All i want to do is to check for my app, if 1 byte is changed then exit the app.

    Thanks guys.
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  2. Jan 20th, 2007, 10:32 AM #2
    longwolf
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    Re: CRC Check

    There's some CRC source code on PSC that only does sections of your program.
    You select the parts of your program with passwords and registration checking.
    The code for checking the CRC is placed else where in your code so that it doesn't effect the crc of those areas.
    http://planetsourcecode.com/vb/scrip...=9427&lngWId=1
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