Decode (rot 13)
Menu Messages\Rot 13 lets you code or decode a message in rot 13:
The screen is split up in two parts : the text to be decoded has to be typed in the top part, in the bottom part the text appears coded.
Rot 13 is not a real code but is sometimes used in a group to hide text. for example the answer for an enigma or quiz question. To decode a text it works the same.
The method used for coding/decoding : only the letter characters (capital- and letters, but without accents) are coded. For each letter a number is given: A=1, B=2, ... Z=26. To code you add 13 to the number and then the letter found in that position is used.
Example : A has the value of 1. Add 13 to code,
so 1+13=14. the letter with number 14 is N, so A becomes a
N.
To decode you do the same: N has a value of
14. 14+13=27,
as a result you get 1 (27-26=1). The first letter is A, so the N
becomes A.
If you rather code/decode yourself here is a coding table:
|
A = N |
B = O |
C = P |
D = Q |
E = R |
F = S |
G = T |
H = U |
I = V |
|
J = W |
K = X |
L = Y |
M = Z |
N = A |
O = B |
P = C |
Q = D |
R = S |
|
S = F |
T = G |
U = H |
V = I |
W = J |
X = K |
Y = L |
Z = M |
|