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    Security Override Hacking Challenges Decryption Hacking Challenges
    Any idea to approach decryption level 9 challenge?
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    07-08-2013 06:07 AM Any idea to approach decryption level 9 challenge? | Edited by trietptm 07-08-2013 06:11 AM
    I could not figure out the mapping between the char and cypher in the encryption level 9 challenge.
    Could you help me some ideas to approach this challenge Smile ?
    http://securityoverride.org/challenges/decryption/9/

    Thank you.
     
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    07-08-2013 07:50 AM RE: Any idea to approach decryption level 9 challenge?
    Try these as inputs:
    "aaaaaa"
    and
    "aabbcc"
    Then look at the encrypted forms carefully. It's quite obvious. You should be able to see it.
     
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    12-30-2013 07:47 AM RE: Any idea to approach decryption level 9 challenge?
    I can't figure out what calculation happens for every even symbol. Any hint please?
     
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    12-30-2013 08:15 AM RE: Any idea to approach decryption level 9 challenge?
    Ok, it is solved already. Operation was simillar to every odd symbol (I hope it is not a big hint).
     
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    03-02-2014 04:57 PM RE: Any idea to approach decryption level 9 challenge?
    I did this one manually by making an Excel spreadsheet with all lowercase, uppercase and special symbols and observing their encrypted values. It took me four hours to do this way but I just solved it.

    Could anyone PM me with a way they did it that was faster? Programatically? I'd like to learn, please.

    And, I hope what I wrote wasn't too much of a hint either. My apologies if it is. I'm still curious to see how others did this.

    Anyway, great challenge! Now if only I could get # 5 and 8, life would be grand LOL
     
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