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[edit]The Solver For the First Pass on Gamma Is Now Known

Let me make this clear from the get-go.

This is not another thread for you to come find the solutions on.

This is specifically to list the comprehensive processes behind discovering the solutions on each page and attributing the original discoverers, when known.

I also wish to discuss other types of encryption that may be used in potential future puzzles.

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Page 1
urmothership

Original Finder(s): The folks in The Believers thread, apparently.

How do I get it?

On the first page, enter any incorrect answer into the box and submit it.

You will recieve an error message: "ERROR 19829245 : Access denied."

This number is actually the number of a forum topic.

19829245]http://www.gaiaonline.com/forum/viewtopic.php?t=19829245

In the first post by UFO 12 is a garbled line - hezbgurefuvc

This is a ROT-13 encryption.

The easiest method of solving this encryption is to line up the alphabet thus:


ABCDEFGHIJKLM
NOPQRSTUVWXYZ


Now, simply switch the letters with the letter above/below it on this grid.

You should get 'urmothership'.

Page 2
1. foo
2. bar
3. baz
4. quux


Original Finder(s):
m_13 was the first to post about the classified puzzle.
Arkeron first who posted the solved puzzle within it.
http://www.gaiaonline.com/forum/viewtopic.php?t=18753841&page=1849
indisposed first posted the correct order.
http://www.gaiaonline.com/forum/viewtopic.php?t=18753841&page=1850

How do I get it?

This one was fairly simple. At the bottom corner of the large green triangle is a little image of puzzle pieces. On the 29th, a new 'classified' puzzle was added.

Solving this puzzle revealed the words foo, bar, baz, and quux. These are meta-syntactic variables, and they are commonly ordered as they are in the solution of this puzzle.

Page 3
1. http://avatar.gaiaonline.com/gaia/members/ava/04/7f/289bf9fc4f7f04.png
2. RedBino
3. Lotus Elise
4. Blue
5. Creep


Original Finder(s):
Freya Valkov was the first to post the alt-text I_Am_The_Eggplant.
indisposed found I_Am_The_Eggplant's profile.
http://www.gaiaonline.com/forum/viewtopic.php?t=18753841&page=1852
InuYoshi_Demon first proposed that 2-5 were the favorites in Eggplant's profile.
http://www.gaiaonline.com/forum/viewtopic.php?t=20046387&page=28
Cirosan posted the first password, to my best knowledge.
http://www.gaiaonline.com/forum/viewtopic.php?t=19919211&page=205

How do I get it?

This one is a little more involved. On page 3 (gamma) is an image of a broken image (lol). This image has the alt-text 'I_Am_The_Eggplant'.
I_Am_The_Eggplant is a user, and his profile contains four 'favorites'. These happen to be codes 2-5.
The first pass is cued by the fact that they show a broken image. It was intended to tell us to fix the broken image.
So, you take the URL to I_Am_The_Eggplant's avatar image, and that ended up being the first pass.

Page 4
1. there is no cow level
2. zurg1234
3. delta


Original Finder(s):
Someone in Theory19 pointed out the text in the source on page 4. I do not know if this is the first post or not.
Yours Truly (Silarn d'Zashyn) cracked the playfair cipher in the source code.
http://www.gaiaonline.com/guilds/viewtopic.php?t=6881509&page=5
Acrid Avid Jam Shred was the first to unstego the image in I_Am_The_Eggplant's signature.
http://www.gaiaonline.com/forum/viewtopic.php?t=20514175&page=1
diverguy was the first to identify the words 'there is no cow level'.
http://www.gaiaonline.com/forum/viewtopic.php?t=20514175
.Thatched. was the first to unravel the MD5 Hash and find zurg1234.
As far as I know, Glithe was the first to identify MD5 hashes.
delta was one of the options for the third password that a whole bunch of people guessed - I can say no clear 'first' on this one.

How do I get it?

pass 1-

Hidden in the source of page 4 (delta) is this ciphertext:

MF GH CL SB PC PV QH SU FP NZ LY

This turned out to be what is called a Playfair Cipher. It is a complicated one, and I don't really want to explain it.

http://www.braingle.com/brainteasers/codes/playfair.php

At the encryption/decryption box, enter 'zurg' as the keyword and select 'replace j with i'.

It ends up as

fazleinfodownloadshtmx

You add an x if it is dangling, so that leaves 'fazleinfodownloadshtm'.

This is a url - http://www.fazle.info/downloads.htm

This page contains a steganography program.

Download, extract, and use this program to 'unstego' the image in I_Am_The_Eggplant's signature.

This will provide you a text file - zurg.txt.

Within this text file is the URL http://graphics.gaiaonline.com/images/event/zurg2006/puzzle/moo.mp3

This is a sound file, obviously, and faintly heard in a slowed-down voice are the words 'there is no cow level'.

pass 2-

This is an MD5 hash. We discovered these all over the puzzle much earlier, and eventually discovered it to be the hash for zurg1234.
There are hints - [a-z0-9]{8} means 'eight characters long, lower-case letters and numbers'.

pass 3-

On each page in the lower left corner was a small, lower-case Greek letter. They were alpha, beta, and gamma. The next letter in the sequence is delta.
One future possibility: spectrography

This is the art of encoding an image within a sound file.

http://www.kempa.com/blog/archives/000083.html
dude this is a hella useful thread! thanks! subscribing.
I'm glad you think so.

So far we know of a few types/groupings of encryption that we may see.

Rotation encryption/substitution encryption

Each letter or symbol in the ciphertext corresponds to another letter or symbol. Rotation ciphers (eg. ROT-4, ROT-13) simply rotate the alphabet or the ASCII symbol order. Substitution encryptions are random, and must be worked out in each individual case.

Block ciphers

These ciphers deal with taking the origin text and arranging it in a specific way. After doing so, a process is done which will move or substitute the letters in the origin text. The Playfair Cipher is an example of this.

There may be special keywords or processes that must be used in the encryption/decryption.

Hash algorithms

We have only seen MD5 thus far, but there are a number of hash algorithms that can potentially be used. These are one-way solutions, so the origin phrase must already be known or solved in order to find it. Many of these solutions are already stored in online hash databases.

Steganography

The art of 'hiding' files and messages within images. These can be encrypted as well. A program must be used to draw the information from the image.

Spectrography

This has not been used, to date, in the Zurg puzzle. It is the process of encoding an image within a sound file. It may be hidden somewhere within a longer sound, or even layered over. To 'unlock' the latter, you must find the original sound that was placed over top of the radiograph and remove it from the sound. If this is not done, the image may be scrambled beyond recognition.
Since this is on page three, I'm bumping.
Actually, I seem to be the first to have posted "there is no cow level". See?

He is merely agreeing with me five minutes and six posts later!

But I suppose it doesn't matter. Great work on the thread, I was hoping somebody would make one!

EDIT: I'd also like to add that it is possible that the voice was merely pitched down, and not slowed down. Pitching it up and speeding it up both make it easier to hear :3
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