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Krogdor
Joined: 18 Apr 2008
Posts: 908
Location: The Interwebs
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 Posted: Sat Jun 28, 2008 5:55 am Post subject: |
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| Even if you took away the Mod(), I don't think you would be able to reverse it because of the Ceil() rounding. |
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Slanter
Joined: 28 May 2008
Posts: 264
Location: Minnesota, USA
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| Posted: Sat Jun 28, 2008 7:07 am Post subject: |
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| Hao wrote: | | OK, thanks for the reply, but would it be possible to do this if there never were any mod functions involved? |
maybe, but like Krogdor said, any sort of rounding will throw you off and prevent you from finding the original string. You can however attempt to find an answer by removing all of the functions that do any sort of rounding. For example
| Code: | Mod(Mod((Num * 1000) / 433, 4), 5) = "1.182448"
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and we know that
Mod(Mod(1.182448, 4), 5) = 1.182448
so...
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(Num * 1000) / 433 = "1.182448"
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Solver for Num (yay algebra!)
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Num = 0.511999984
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Num can be equal to 0.511999984
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okay... guess in this case the easy method won't work, Num has to be a whole number because Ceil() returns only integers... Looks like you have to brute-force this one anyway lol 
You can still make it tell you congrats though 
| Code: | X=
Num=0.511999984
GoSub, Submit
Return
Submit:
Gui, Submit, NoHide
Loop, Parse, X
Num += Ceil((Asc(A_LoopField) * 50) / 37)
If (Mod(Mod((Num * 1000) / 433, 4), 5) = "1.182448")
MsgBox, 48, Congrulations!, You got it!
Num := "" |
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300W
Joined: 12 Jan 2008
Posts: 27
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| Posted: Sat Jun 28, 2008 3:01 pm Post subject: |
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| Yeah, guess you're right, I'll just give up then. Thanks for the support xD. |
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Ian
Joined: 15 Jul 2007
Posts: 1157
Location: Enterprise, Alabama
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| Posted: Sat Jun 28, 2008 3:12 pm Post subject: |
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Hehe, I thought the Ceil() would make it harder, but I guess it opened the possibilities to more than just one password o.O
The password I was going for: hawk
Edit: I'll be making a new one just as soon as I finish a VB Mod for my friend.
_________________
ScriptPad/~dieom/dieom/izwian2k7/Trikster/God
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DerRaphael
Joined: 23 Nov 2007
Posts: 456
Location: Heidelberg, Germany
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| Posted: Mon Jun 30, 2008 11:14 am Post subject: |
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another tryout for all of u and your chance to get into hall of fame 
(needs ahk 1.0.47.06 +)
| Code: | InputBox,pwd,Password,Enter your Password
u:=f:="0123456789abcd",n:=((n:=(x:=u+0)?(u):0)?(n):(--n)),NumPut(1400004950,u)
NumPut(1631810661,u,4),NumPut(1768120688,u,8),NumPut(31092,u,12),%u%($,8)
NumPut(1819440243,$),NumPut(28261,$,4),%u%($,n),o:="ef",f.=o,NumPut(30768,o)
if ! ((%$%(pwd)<1)&&!(++n)) {
Loop,% %$%(Pwd)
n += ((*(&pwd-1+a_index)<<1)**4)^(%$%(pwd)-a_index)
Loop,
if n
k:=substr(f,(n&15)+1,1) k,n:=n>>4
else
break
}
MsgBox % (17184165491= o k ) ? "u did it, congrats!" : "oops, try again" |
greets
derRaphael
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300W
Joined: 12 Jan 2008
Posts: 27
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| Posted: Fri Jul 18, 2008 4:34 am Post subject: |
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| Oh lawd, that's a good one Raphael, I'll give it a try some time soon xD, btw do you have a reverse solution to that? |
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