'Transposition' bei Blocklänge 5:
TRANS
POSIT
ION
'Transposition' bei Blocklänge 8:
TRANSPOS
ITION
Addition bei Vigenère-Chiffre:
A + e = 0 + 4 mod 26 = 4 = E
B + i = 1 + 8 mod 26 = 9 = J
C + n = 2 + 13 mod 26 = 15 = P
D + e = 3 + 4 mod 26 = 7 = H
E + i = 4 + 8 mod 26 = 12 = M
A + n = 0 + 13 mod 26 = 13 = N
B + f = 1 + 5 mod 26 = 6 = G
C + a = 2 + 0 mod 26 = 2 = C
D + c = 3 + 2 mod 26 = 5 = F
E + h = 4 + 7 mod 26 = 11 = L
A + e = 0 + 4 mod 26 = 4 = E
B + r = 1 + 17 mod 26 = 18 = S
C + s = 2 + 18 mod 26 = 20 = U
D + a = 3 + 0 mod 26 = 3 = D
E + t = 4 + 19 mod 26 = 23 = X
A + z = 0 + 25 mod 26 = 25 = Z
B + m = 1 + 12 mod 26 = 13 = N
C + i = 2 + 8 mod 26 = 10 = K
D + t = 3 + 19 mod 26 = 22 = W
E + a = 4 + 0 mod 26 = 4 = E
A + b = 0 + 1 mod 26 = 1 = B
B + c = 1 + 2 mod 26 = 3 = D
Schlüssel und Geheimtext wieder in Groß-, Klartext in Kleinbuchstaben.