170 lines
4.2 KiB
Plaintext
170 lines
4.2 KiB
Plaintext
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The Basic Cipher
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======================================
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created by, UndeadPhreak
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********************************************
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I have allways loved codes and ciphers, so i have put the basics into this file. these ciphers are simple and chances are you've already used then before. But they work.
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first of all there are two types of code,
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there is the "Transport Cipher" and and the "Substatute Cipher".
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(Cipher is a fancy word for code)
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A Transport cipher is when you mix up the letters from the original text (also called the "plain text")
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this kind of cipher can be as simple of as complicated as you
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want, just keep in mind that your goal is not stop your enemy
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from deciphering the mesage as much as it is to buy time so that
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by the time they do decipher it the information will be useless.
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A Substatution Cipher is when you substatute other letters, numbers, or symbols for the plain text. this is the most common
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form of Ciphers because they are easy to remember.
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the downside to this kind of cipher is the fact that it is easy to crack, the person trying to figure it out simply has to find a pattern in the code to figure out what the letters are.
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now i will give simple examples of both forms.
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first we will use a "Transportation Cipher"
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to encrypt this sentance:
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"meet me sunday by the boat house"
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now that we know what will be in our cipher we can start to
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encrypt it.
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we will use a simple form.
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in this form we will write down our sentance so that it makes a box five letters wide.
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MEETM
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ESUND
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AYBYT
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HEBOA
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THOUS
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EENDM
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since there is four spaces left i added the letters; ENDM
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for "end mesage".
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now that we have made our box, it is time to copy down the
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cipher text. To do this we simply write down the letters going down instead of across like the plain text.
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after we do this our mesage looks like this:
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MEAHTE ESYEHE EUBBON TNYOUD MDTASM
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To decipher our message all we have to do is make another box,
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it will look like this:
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M E E T M
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E S U N D
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A Y B Y T
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H E B O A
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T H O U S
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E E N D M
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Then we write down the letters moving across the box,
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after we do that it will look like this:
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MEETM ESUND AYBYT HEBOA THOUS EENDM
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Now all we have to do is add space in the right places:
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MEET ME SUNDAY BY THE BOAT HOUSE ENDM
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you can use any shape you want and any form of transfering your plain text to it.
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Now we will use a Substatution Cipher.
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first of all we need to make a key for our cipher,
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both the sender and the reciver must either have a copy of the key or have it memorised.
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for our key we will use our keboard,
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here is our key:
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Q = A
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W = B
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E = C
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R = D
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T = E
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Y = F
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U = G
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I = H
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O = I
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P = J
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A = K
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S = L
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D = M
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F = N
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G = O
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H = P
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J = Q
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K = R
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L = S
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Z = T
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X = U
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C = V
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V = W
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B = X
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N = Y
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M = Z
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Okay, now that we have our key we can start enciphering our message.
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Group all of the letters into five letter "words"
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MEET ME SUNDAY BY THE BOAT HOUSE
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becomes
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MEETM ESUND AYBYT HEBOA THOUS E
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Now lets use our key to hide the message.
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after we use our key we get this:
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DTTZD TLXFR QNWNZ ITWGQ ZIGXL T
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Now all the reciver has to do is match the letters with the ones
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on the key to find the message.
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These are too very simple and basic examples of ways to encypher a message, but both are the base of most codes and ciphers. you can change and modify you own codes any way you chose, the posabilities are endless!
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until next time....
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UndeadPhreak
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contact me @ undeadphreak@gmail.com
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created on 12/19/11 @ 3:12 PM
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