Return to Unfiction unforum
 a.r.g.b.b 
FAQ FAQ   Search Search 
 
Welcome!
New users, PLEASE read these forum guidelines. New posters, SEARCH before posting and read these rules before posting your killer new campaign. New players may also wish to peruse the ARG Player Tutorial.

All users must abide by the Terms of Service.
Website Restoration Project
This archiving project is a collaboration between Unfiction and Sean Stacey (SpaceBass), Brian Enigma (BrianEnigma), and Laura E. Hall (lehall) with
the Center for Immersive Arts.
Announcements
This is a static snapshot of the
Unfiction forums, as of
July 23, 2017.
This site is intended as an archive to chronicle the history of Alternate Reality Games.
  

The time now is Mon Nov 18, 2024 6:51 pm
All times are UTC - 4 (DST in action)		 View posts in this forum since last visit
View unanswered posts in this forum
Calendar
 Forum index » Diversions » TimeWasters
Help, codes!!!!!!!!!
Moderators: Giskard, ndemeter, ScarpeGrosse
View previous topicView next topic
Page 1 of 1 [4 Posts]  
Author Message
fretty
Decorated

Joined: 19 Nov 2004
Posts: 281
Location: South Yorkshire, England

 		Help, codes!!!!!!!!!
There is a new international cryptography challenge which is quite interesting at www.mystery-twister.com , have a go. I am on CC3 (makes sence when you go on it) and I am stuck.

The following three codes were encrypted using the same key using a one time pad cipher, The details will be explained later:

Message 1-OVTYRWZFWZUEQROXFGYJZPHZSQDLJC
News-THE RELATIONS ARE BROKEN

Message 2-JODPVJRAKDQNZNMFNCJBYNLZAENROW
News-THIS IS THE DUTY OF THE GOVERNMENT

Message 3-QUCRKJEMQNTTGDQWVSGQJXUYYAOQIT
News-WHAT IS THE ROLE OF TURKEY?

Using the same key, translate this message:
JODNRETQITMIBWGMUHMJHHYOLXKOAP

The site just tells you this:
Encryption
The letters are labelled from 0 to 25, A=0 B=1.
If the Plaintext is A and the Keytext is B, A=0 B=1, add together and compute the positive remainder modulo 26. So this would be 0+1=1=B
Decryption is similar just that the key is subtracted not added

A one time pad is a random key as long as the plaintext. If the key is used once then it is unbreakable but as used here four times it is possible to break but I don't know where to start.

I need lots of help to crack this please. Believe it or not it is in the beginners section

PostPosted: Tue Apr 19, 2005 11:56 am
 View user's profile
 Back to top 
Atrophied
Entrenched


Joined: 29 Aug 2004
Posts: 1133
Location: 53742E 4A6F686E27732C 4E4C00

 		ok, this is a vigenere cipher (I'm pretty sure)

that means that there's a 'key' which can be figured out from the first 3 messages. (actually, any of the 3 messages).

I'll post when I have a methodology.

Strange, I was expecting the solves to be the same length as the code. Anyone have any idea why? Hmmm, this may take longeer than I thought.
_________________
"It will be happened; it shall be going to happening; it will be was an event that could will have been taken place in the future." -- Time travel, as explained by Arnold J. Rimmer

"The Future's bright, the Future's Cuboid" - Juxta

PostPosted: Wed Apr 20, 2005 3:56 pm
 View user's profile Visit poster's website
 Back to top 
TobyNTucker
Boot

Joined: 02 Mar 2005
Posts: 64
Location: South Korea
Atrophied wrote:
Strange, I was expecting the solves to be the same length as the code. Anyone have any idea why?


I think that is because those arent solves. They are just clues to the plaintext and that the real plaintext will come from answering one of the questions. But I cant think of any answers exactly 30 characters long either.

I submit what I have now. I noticed that both the second and the fourth lines of coded text start with JOD so I assumed (and, yes, proly made an ass out of you and me...) That JOD=THE and went from there. Not sure if it is on the right track but you can see the results below. Apologies if it is hard to follow.

A+X=C
C-A=X
C-B=X
where A is plain text, B is Key, and C is Coded Text.

JOD=THE
T+X=J 19+X=9 16(q)
H+X=O 7+X=14 7(h)
E+X=D 4+X=3 25(z)
Code so far:
QHZ

O V T YRWZFWZUEQROXFGYJZPHZSQDLJC
14 21 19
Y O U

J O D PVJRAKDQNZNMFNCJBYNLZAENROW
9 14 3
T H E

Q U C RKJEMQNTTGDQWVSGQJXUYYAOQIT
16 20 2
A N D

Hope this helps

PostPosted: Wed Apr 20, 2005 8:50 pm
 View user's profile
 Back to top 
fretty
Decorated

Joined: 19 Nov 2004
Posts: 281
Location: South Yorkshire, England

 		That is really helpful, is that the way to solve it, by just placing random words in the text. If so do you think that placing "the" on the first message beginning at letter 21 is correct. If so you get:

Message 1-THE
Message 2-RLE
Message 3-BUD

Plus the key in that part forms WAV

p.s. the news are just clues to the plaintext, I think, I hope. Plus i found out that a one time pad cipher is another name for a vigenere cipher with a key as long as the plaintext. But with a one time cipher you cant check out repeating strains of ciphertext.

PostPosted: Fri Apr 22, 2005 6:15 am
 View user's profile
 Back to top 
Display posts from previous:   Sort by:   
Page 1 of 1 [4 Posts]  
View previous topicView next topic
 Forum index » Diversions » TimeWasters
Jump to:  


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum



Powered by phpBB © 2001, 2005 phpBB Group