Junior Hax0r School: Part 2

hx2Look at the following eight bytes.

ec 04 9d b1 4b a7 75 d6

One is different. Which one is it and why?

5 comments

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    • XenGi on March 25, 2013 at 11:04 pm

    Does anybody have a clue?

    I have no idea what this means..hex to unicode

    • dude on March 26, 2013 at 1:06 am

    divide each by 4 and 04 is the only byte to give 1

    Greetings ­čśë

      • XenGi on March 26, 2013 at 2:58 pm

      Mh. There must be something that the other 7 have in common.

      And it’s not easy, so deviding by something seems not to be the answer.

    • eagle on March 27, 2013 at 6:59 am
      Author

    Hint: It has something to do with coding theory. And it is not “junior” as the title claims ­čśë

    • eagle on April 2, 2013 at 11:12 am
      Author

    The solution is ‘b1’. All bytes have Hamming distance of at least 4 but b1 has just 3 with some of the other bytes.

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