Tugas Perkuliahan 13
Matakuliah : Keamanan Sistem Komputer (C31040319)
Dosen : Desi Rose Hertina, ST., M.Kom
Algritma Kriptografi Vignere Cipher
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Pesan (baris) |
S |
U |
M |
P |
A |
H |
P |
E |
M |
U |
D |
A |
|
Kunci (kolom) |
K |
E |
J |
U |
J |
U |
R |
A |
N |
K |
E |
J |
|
Enkripsi (baris,kolom) |
(S,K) =C |
(U,E) =Y |
(M,J) =V |
(P,U) =J |
(A,J) =J |
(H,U) =B |
(P,R) =G |
(E,A) =E |
(M,N) =Z |
(U,K) =E |
(D,E) =H |
(A,J) =J |
|
Enkripsi tahapan |
Tenpatkan HURUF PESAN pada ruang BARIS,
kemudian cari HURUF KUNCI pada ruang KOLOM, sehingga titik temu (ISI) antara
BARIS dan KOLOM dari setiap huruf adalah cipher text |
|||||||||||
|
Cipher text |
CYVJJB
GEZEHJ |
|||||||||||
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Deskripsi (chipper, kunci) |
S |
U |
M |
P |
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H |
P |
E |
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A |
|
Deskripsi tahapan |
Berdasarkan HURUF
cipher text yang berada di titik ISI table acuan carilah HURUF KUNCI pada
bagian KOLOM sejajar, sehingga HURUF PESAN dapat ditemukan pada bagian BARIS sejajar |
|||||||||||
|
Plain text |
SUMPAH
PEMUDA |
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