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Thread: Fun challenge

  1. #1

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    Fun challenge

    http://mathschallenge.net/index.php?...ref=view&id=59

    How fast do you think you can do that? Starting with 1 key and brute forcing till you unlock the xor cipher.
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

  2. #2
    Super Moderator manavo11's Avatar
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    Re: Fun challenge

    34.323432879256 years


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  3. #3

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    Re: Fun challenge

    Quote Originally Posted by manavo11
    34.323432879256 years
    maybe 34.323432879256 mins
    lol

    I mean its only 3 charecters.

    if you brute forced all of ascii that would only be 16,777,216 different keys. If you only use common ascii like 0-9, A-Z, a-z then it would only be 238,328 different keys.

    This is just something for fun of course... don't have to do it =P
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

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    Re: Fun challenge

    just incase your curious:

    (The Gospel of John, chapter 1) 1 In the beginning the Word already existed. He was with God, and he was God. 2 He was in the beginning with God. 3 He created everything there is. Nothing exists that he didn't make. 4 Life itself was in him, and this life gives light to everyone. 5 The light shines through the darkness, and the darkness can never extinguish it. 6 God sent John the Baptist 7 to tell everyone about the light so that everyone might believe because of his testimony. 8 John himself was not the light; he was only a witness to the light. 9 The one who is the true light, who gives light to everyone, was going to come into the world. 10 But although the world was made through him, the world didn't recognize him when he came. 11 Even in his own land and among his own people, he was not accepted. 12 But to all who believed him and accepted him, he gave the right to become children of God. 13 They are reborn! This is not a physical birth resulting from human passion or plan, this rebirth comes from God.14 So the Word became human and lived here on earth among us. He was full of unfailing love and faithfulness. And we have seen his glory, the glory of the only Son of the Father.
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

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    Super Moderator manavo11's Avatar
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    Re: Fun challenge

    What was the key?


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    Re: Fun challenge

    Quote Originally Posted by manavo11
    What was the key?
    not gonna tell ya =P

    first to post the key gets a cookie from me!
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

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    Super Moderator manavo11's Avatar
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    Re: Fun challenge

    ***

    *opens mouth*



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  8. #8

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    Re: Fun challenge

    Quote Originally Posted by manavo11
    ***

    *opens mouth*

    Isn't it worth 5 mins of your time for a nice cookie?
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

  9. #9
    Frenzied Member Tec-Nico's Avatar
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    Re: Fun challenge

    It is "god"
    We miss you, friend... Rest in Peace, we will take care of the rest of it.

    [vbcode]
    On Error Me.Fault = False
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    - Silence is the human way to share ignorance
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  10. #10

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    Re: Fun challenge

    Quote Originally Posted by Tec-Nico
    It is "god"
    how about no
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

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    Frenzied Member Tec-Nico's Avatar
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    Re: Fun challenge

    Yes it is.
    Attached Images Attached Images  
    We miss you, friend... Rest in Peace, we will take care of the rest of it.

    [vbcode]
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    - Silence is the human way to share ignorance
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  12. #12
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    Re: Fun challenge

    I get the key being 'odg'


    "X-mas is 24.Desember you English morons.." - NoteMe

  13. #13

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    Re: Fun challenge

    Quote Originally Posted by dsheller
    I get the key being 'odg'
    werd, actually the key I found to unlock it was dgo
    Last edited by Maven; Dec 4th, 2004 at 11:37 AM.
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

  14. #14

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    Re: Fun challenge

    the reason is due to my algorithm.... mistake on my part =P
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

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    Re: Fun challenge

    Maybe me, you, and Tec just did it different ways, I mean we all got the same keys used just different combinations.


    "X-mas is 24.Desember you English morons.." - NoteMe

  16. #16

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    Re: Fun challenge

    Quote Originally Posted by Maven
    the reason is due to my algorithm.... mistake on my part =P

    For i = 1 To Len(Message)
    plainchar = Asc(Mid(Message, i, 1))
    pk = Asc(Mid(key, (i Mod Len(key) + 1), 1))
    buffer = buffer & Chr(plainchar Xor pk)
    Next i
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

  17. #17

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    Re: Fun challenge

    Quote Originally Posted by dsheller
    Maybe me, you, and Tec just did it different ways, I mean we all got the same keys used just different combinations.
    Yea our algoritms are different is why we produced different keys.
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

  18. #18

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    Re: Fun challenge

    Quote Originally Posted by Tec-Nico
    It is "god"
    /me gives tec a cookie =)

    as promised!
    Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. - Oscar Wilde

  19. #19
    Frenzied Member Tec-Nico's Avatar
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    Re: Fun challenge

    Thanks. I used the order they gave us to make it match. But as all of you said, it all depends on our algorithms.
    We miss you, friend... Rest in Peace, we will take care of the rest of it.

    [vbcode]
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    - Silence is the human way to share ignorance
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