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Re: Creating a script to decrypt these?

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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
Total Posts: 10446
02 Jul 2013 09:27 PM
[ Content Deleted ]
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blocco is not online. blocco
Joined: 14 Aug 2008
Total Posts: 29474
02 Jul 2013 09:29 PM
^

red banded top hat ftw
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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
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02 Jul 2013 09:29 PM
Nice to see you again blocco!
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MrChubbs is not online. MrChubbs
Joined: 14 Oct 2010
Total Posts: 4969
02 Jul 2013 09:30 PM
Percentage anaylsis, brute force based on key, random guessing.
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ColorfulBody is not online. ColorfulBody
Joined: 17 Jun 2012
Total Posts: 2353
02 Jul 2013 09:31 PM
Red banded top hat is awesome. But white boss hat is better.
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blocco is not online. blocco
Joined: 14 Aug 2008
Total Posts: 29474
02 Jul 2013 09:31 PM
Looks like hex, but... maybe not
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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
Total Posts: 10446
02 Jul 2013 09:32 PM
I can see that at least one of these looks like a bunch of md5 hashes which are not reversable. Does anyone recognize any of the other types of encryption/hashing?
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MrNicNac is not online. MrNicNac
Joined: 29 Aug 2008
Total Posts: 26567
02 Jul 2013 09:39 PM
Why are you trying to figure these out?

Several of them look like they're DLL files which have been run through a Base 4 (hex) conversion.
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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
Total Posts: 10446
02 Jul 2013 09:42 PM
Nice to see you Mr. Nic Nac!
Also, I was just curious. I found it while browsing through some pastes and was intrigued. Also, what exactly does a DLL file contain?
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MrChubbs is not online. MrChubbs
Joined: 14 Oct 2010
Total Posts: 4969
02 Jul 2013 09:42 PM
A DLL file is a library.
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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
Total Posts: 10446
02 Jul 2013 09:43 PM
@MrChubbs

Can a DLL file contain anything amazing?
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MrNicNac is not online. MrNicNac
Joined: 29 Aug 2008
Total Posts: 26567
02 Jul 2013 09:43 PM
I can't say "exactly" what they all contain. Usually, they're just library files that store functions for executable programs.
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MrChubbs is not online. MrChubbs
Joined: 14 Oct 2010
Total Posts: 4969
02 Jul 2013 09:45 PM
Oyus.
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blocco is not online. blocco
Joined: 14 Aug 2008
Total Posts: 29474
02 Jul 2013 09:46 PM
    local BIG_ENDIAN = 0; -- most to least
    local LITTLE_ENDIAN = 1; -- least to most
    local chars = "0123456789abcdef"
    function chunkValue(chunk, chars, endian)
        
        chunk = endian == BIG_ENDIAN and chunk:reverse() or chunk;
        
        local n = 0;
        local b = #chars;
        local c = 0;
        for char in chunk:gmatch(".") do
            n = n + b^c * chars:find(char);
            c = c + 1;
        end
        return n;
    end
    
    print(chunkValue("004123", chars, LITTLE_ENDIAN))

I made this to get at those chunks
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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
Total Posts: 10446
02 Jul 2013 09:46 PM
Hm. Would each 'block' of characters be equal to one character or what?
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blocco is not online. blocco
Joined: 14 Aug 2008
Total Posts: 29474
02 Jul 2013 09:49 PM
Maybe, but you can always separate the eight digit chunks into four separate bytes
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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
Total Posts: 10446
02 Jul 2013 09:51 PM
Blocco, I don't really understand encryption in a hexadecimal sense, so can you explain what your script... does?
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mew903 is not online. mew903
Joined: 03 Aug 2008
Total Posts: 22071
02 Jul 2013 09:52 PM
Hey another red banded tophatter
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blocco is not online. blocco
Joined: 14 Aug 2008
Total Posts: 29474
02 Jul 2013 09:53 PM
It takes those 8 hex digit chunks and converts them into a number that you can do mathematical operations on. It acts as if the chunks are in base-16. If you wanted to, you could do mathematical operations on that number to split it into four separate numbers, each of which between 0 and 255, the range of bytes.
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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
Total Posts: 10446
02 Jul 2013 09:55 PM
Oooh sounds neat. So for the first paste, the one titled 'B7D22BB5' we can run each chunk in the script, then split it into the four, get the letters and then have whatever is encrypted? Am I doing it ight?
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MrNicNac is not online. MrNicNac
Joined: 29 Aug 2008
Total Posts: 26567
02 Jul 2013 09:57 PM
If you convert those bytes to characters, after going through Blocco's chunk function - you'll get what you would see if you were to take file extensions such as .dll, or .exe and open them in Notepad.
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blocco is not online. blocco
Joined: 14 Aug 2008
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02 Jul 2013 09:57 PM
Yup.
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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
Total Posts: 10446
02 Jul 2013 10:02 PM
I don't know if I used it right, please don't ridicule me as I don't really understand much about the topic, but one eight two four seven three four eight six zero is the result of plugging B7D22BB5 in, yes? And how would this be converted to characters?
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ColorfulBody is not online. ColorfulBody
Joined: 17 Jun 2012
Total Posts: 2353
02 Jul 2013 10:03 PM
Decoded the first one:

codepad dot org slash LtreCw1n
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ChipperNickel is not online. ChipperNickel
Joined: 04 Jan 2009
Total Posts: 10446
02 Jul 2013 10:08 PM
@Colorfulbody

What math needs to be applied to those numbers to convert them to letters?
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