Author Topic: Decrypting tech tree from SHEETS.VOL  (Read 1475 times)

Offline leeor_net

  • Administrator
  • Hero Member
  • *****
  • Posts: 2186
    • LairWorks Entertainment
Decrypting tech tree from SHEETS.VOL
« on: September 15, 2004, 04:04:16 PM »
Welp, I've done some work and now I have a bunch of TXT files extracted. Clearly, however, they are either encrypted or simply not TXT files.

How can I read the file so that it makes sense?

 :op2: Leeor...

Offline BlackBox

  • Administrator
  • Hero Member
  • *****
  • Posts: 3101
Decrypting tech tree from SHEETS.VOL
« Reply #1 on: September 15, 2004, 05:14:02 PM »
They are text files encoded with an algorithm similar to Huffman encoding.

If you want a copy of some decompressed sheets PM here or in IRC.

(I'm not giving out the decompression algorithm, sry but I will give you a decompressed copy.)

Offline Hooman

  • Administrator
  • Hero Member
  • *****
  • Posts: 4751
Decrypting tech tree from SHEETS.VOL
« Reply #2 on: September 15, 2004, 05:47:27 PM »
A decompressed sheets.vol file has been posted in the file forums (Sheets.vol thread). You can extract plain text from it using the revolver. There is a slight problem though in that the revolver doesn't extract one of the files properly (0 bytes) but that file is posted later in the thread.
 

Offline leeor_net

  • Administrator
  • Hero Member
  • *****
  • Posts: 2186
    • LairWorks Entertainment
Decrypting tech tree from SHEETS.VOL
« Reply #3 on: September 18, 2004, 01:08:24 PM »
Thanks for the heads up!

Why is it that you're not giving out the algorithim? I'm just wondering, not necisarliy asking for it (god my spelling is off!)

 :op2: Leeor...

Offline Arklon

  • Administrator
  • Hero Member
  • *****
  • Posts: 1224
Decrypting tech tree from SHEETS.VOL
« Reply #4 on: September 18, 2004, 02:57:16 PM »
Because people will abuse it in multiplayer.

Offline Hooman

  • Administrator
  • Hero Member
  • *****
  • Posts: 4751
Decrypting tech tree from SHEETS.VOL
« Reply #5 on: September 18, 2004, 03:54:45 PM »
I think it's probably a good idea to keep it a secret. It could be used to protect files in future releases from prying eyes (although a compression algorithm has never been written yet afaik). Besides, the only thing that is currently compressed are the sheets files, but a decompressed version has been distributed so there is no need to tell anyone the decompression algorithm.