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Sunday, December 25, 2011

OTP (One Time Pad) mod26 Vigenere

Plaintext              : PTIINFORMATIKA
Key                        : TBFRGFARFM

OTP        : C=(P+K)mod26

(P + T)mod26 = (15 + 19)mod26 = (34)mod26 = 8 = I
(T+ B)mod26 = (19 + 1)mod26 = (20)mod26 = 20 = u
(I+ F)mod26 = (8 + 5)mod26 = (13)mod26 = 13 = N
(I+ R)mod26 = (8 + 17)mod26 = (25)mod26 = 25 = Z
(N + G)mod26 = (13 + 6)mod26 = (19)mod26 = 19 = T
(F+ F)mod26 = (5 + 5)mod26 = (10)mod26 = 10 = K
(O+ A)mod26 = (14 + 0)mod26 = (14)mod26 = 14 = O

Saturday, December 10, 2011

PTI rumus konversi biner oktal hexa

Rumus cara menghitung konversi hexadesimal, biner dan oktal


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