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Data Decryption / Decompression

 
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Data Decryption / Decompression

Daiken
post 8 Mar, 2008 - 09:21 PM
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Anyone have an idea how I could figure out what cryption or compression was used for this:

http://www.tipitek.com/VanCryption.txt

I've changed the ASCII offset of the entire string from -29 to +131 (everything beyond will result in some characters being out of the valid range) but didn't get any meaningful data.
Also I've tried a Gzip decryption which failed due to missing 'magic number'.

Either this is encrypted with a proper encryption key or compressed using a different data compression than I've tried so far.

Each line in the file represents the return value of the "sendto" function within ws2_32.dll (Win socket library, so it's most likely a UDP packet).

Would appreciate some input from you.

This post has been edited by Daiken: 8 Mar, 2008 - 09:34 PM
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cdbitesky
post 21 Mar, 2008 - 06:25 PM
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I'm assuming this is just what the encrypted file looks like when opened in a word processor.
its much easier to figure out what encryption is used, or at lease decrypt it with another program if u post the original.
if that is the original then I'm not sure.
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perfectly.insane
post 3 May, 2008 - 05:23 PM
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QUOTE(Daiken @ 8 Mar, 2008 - 09:21 PM) *

Anyone have an idea how I could figure out what cryption or compression was used for this:

http://www.tipitek.com/VanCryption.txt

I've changed the ASCII offset of the entire string from -29 to +131 (everything beyond will result in some characters being out of the valid range) but didn't get any meaningful data.
Also I've tried a Gzip decryption which failed due to missing 'magic number'.

Either this is encrypted with a proper encryption key or compressed using a different data compression than I've tried so far.

Each line in the file represents the return value of the "sendto" function within ws2_32.dll (Win socket library, so it's most likely a UDP packet).

Would appreciate some input from you.


Just an intuitive leap, but this doesn't look like encryption (and if it is, it's a very poor attempt). Good encryption usually has a fairly uniform frequency distribution, not the repetitions involved here.

Return value of the sendto function? What do you mean by that? The return value from actually calling it? That's an int, which returns an error code. Or perhaps the send buffer? Or perhaps what is received on the other end?
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