𝐂𝐨𝐝𝐞𝐬 𝐚𝐧𝐝 𝐂𝐢𝐩𝐡𝐞𝐫𝐬

𝐂𝐨𝐥𝐦𝐨𝐧𝐨 𝐂𝐢𝐩𝐡𝐞𝐫

[Invented by: Ermac Strygwyr]

This cipher is just a simple monoalphabetic substitution cipher. It is just that the key for encryption is processed beforehand.

It is a collaboration of Columnar transposition cipher and monoalphabetic substitution cipher. The alphabet is subject into columnar Transposition first, then assigned as the substitution for the encryption alphabet.

Suppose that our keyword is SIMPLE. Use this as the key for the columnar Transposition. Then fill in the alphabet.

S I M P L E
6 2 4 5 3 1
-------------------
A B C D E F
G H I J K L
M N O P Q R
S T U V W X
Y Z

----

Then extract all the letters according to the rules in encrypting columnar transposition .

FLRX BHNTZ EKQW CIOU DJPV AGMSY

Next, fill them beside the original alphabet..

A- F
B- L
C- R
D- X
E- B
F- H
G- N
H- T
I- Z
J- E
K- K
L- Q
M- W
N- C
O- I
P- O
Q- U
R- D
S- J
T- P
U- V
V- A
W- G
X- M
Y- S
Z- Y

Then encrypt your message like a normal substitution.

Examples:

THINK HARDER = PTZCK TFDXBD
BELIEVE = LBQZBAB
HOT WATER = TIP GFPBD

~~~CTTRO