‣ The Homophonic Substitution cipher is a substitution cipher in which single plaintext letters can be replaced by any of several different ciphertext letters. They are generally much more difficult to break than standard substitution ciphers. Each letter is replaced by its key, for example the letter 'E' might be replaces by 4 different symbols.
The easiest way to break/decrypt this codes is to look at the letters that are usually used. The number of ciphertext letters assigned to each plaintext letter was chosen to flatten the frequency distribution as much as possible.
Plaintext - Ciphertext:
A - D, 9
B - X
C - S
D - F
E - Z, 7, 2, 1
F - E
G - H
H - C
I - V, 3
J - I
K - T
L - P
M - G
N - A, 5
O - Q, Ø
P - L
Q - K
R - J
S - R, 4
T - U, 6
U - O
V - W
W - M
X - Y
Y - B
Z - N
Example:
RED = JZF
Try to decode this:
TZ7L GQWVAH EQJMDJF
YOU ARE READING
DECIPHER: A Compilation of codes and ciphers
Random✘ - - - DECIPHER is a book compilation that tackles different, new and old codes/ciphers. In addition, this book begins with the definition of cryptography along with it's different terminology for begginers, and better understanding. Interested? W...
