Classical Cryptography

Simple Substitution Interactive Demo

Step 1. Enter in a key word or key phrase

Please enter key (up to 26 letters long, including spaces):

KEY:
    KEY POSITION:
 
Corresponding alphabets are produced based on the entered key:
Plaintext Alphabet
A
B
C
D
E
F
G
H
I
J
K
L
M
Ciphertext Alphabet

Plaintext Alphabet
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Ciphertext Alphabet

 

Step 1. Encipher/Decipher

Plaintext

Ciphertext