AES encryption limitation

This is a discussion on AES encryption limitation within the C Programming forums, part of the General Programming Boards category; hey, i found some source that will encrypt a certain amount of data (128 bits). File: http://www.angelfire.com/droid/willc...d/source/aes.c i know how ...

  1. #1
    Shibby willc0de4food's Avatar
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    AES encryption limitation

    hey, i found some source that will encrypt a certain amount of data (128 bits). File: http://www.angelfire.com/droid/willc...d/source/aes.c
    i know how to use the functions contained w/in the file, but what i dont know is how to have it encrypt > 128 bits. ? should i break up the segments into 16 bytes a piece and then send them to the function or what? b/c that seems like it would take longer.. and if so, how would i break up a string to be in 16 byte segments?

    thanks.
    Registered Linux User #380033. Be counted: http://counter.li.org

  2. #2
    ATH0 quzah's Avatar
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    Gee, that's tough. I've never heard of copying data any place else. for the life of me I can't think of what to do, so it may be a while before you get an answer.

    If that was too subtle for you, consider memcpy et al.


    Quzah.
    Hope is the first step on the road to disappointment.

  3. #3
    Shibby willc0de4food's Avatar
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    good idea ;]


    but will memcpy know to move on to the next 16 bytes after i have it do the first 16? like, how will that work? b/c i could put it in a for loop while i <= length and then after sending 16 bytes, add 16 to i and go on from there but i'm not sure if thatd be a good way to do it and idk how to specify where memcpy should start copying. ? if i can...


    thanks.lol


    ...
    ...
    ...
    ...
    !WOWIMANIDIOT!
    ...
    ...
    *shakes head*
    so if i can only pass 16 chars at a time, how do i pass 16 chars at a time. ........woooow.....

    i'm sorry, my brain has temporarily left on a vacation. it will *HOPEFULLY* be back soon.

    ..its sad to think, that i've written a TempConverter, Hangman and Yahtzee program using Win32 API and i can't figure out how to deal with 16 characters at a time..

    i'm sorry for this thread, lol.
    Last edited by willc0de4food; 10-20-2005 at 04:17 PM.
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