From: Gormare Kalss <gormare@...>
Date: 2011-03-16T03:38:02+09:00
Subject: Re: SHA1 Decryption!!

Matthew Bloch wrote in post #987597:
> On 15/03/11 18:07, Gormare Kalss wrote:
>> Hello! I hope that no one will be offended by this question!! Ive been
>> reading the post regarding the subject sha1 hashing and there are quite
>> a few.
>> But i wonder if this is possible to figure out??
>> I have this coordinate and i need to figure it out. I need to get the
>> number for xxx and yyy. Is it possible to reverse this hash if I know
>> parts of the string?
>> ("N59 52.xxx E017 42.yyy") = c884efef7c92e8095d2dd06ce8e02826dcf05a3e
>
> It's probably feasible to try every combination of xxx and yyy, even in
> Ruby (though it'd go a lot faster in C).  If those are definitely
> digits, there's only 1 million :)  Knowing more about the data might
> also help you rule out which values of xxx and yyy aren't feasible.

One says yes and one says no :) I havent got got a clue how to do it but 
data for either xxx and yyy are between 001-999 so about a million 
chances.. :) Nice to find an example somewhere..

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