Semester : 3 (Ganjil) – Tahun Ajaran 2020/2021 (20201)
Jurusan : S1 Teknik Informatika
Mata Kuliah : Keamanan Sistem Komputer (C31040319)
Dosen : Desi Rose Hertina, S.T., M.Kom.
NIM : 201931096
Nama Lengkap : Andi Batari Salmin
Asal Daerah : Palopo, Sulawesi-Selatan
Perkuliahan Minggu ke13, (24-27 Nopember 2020)
Matakuliah : Keamanan Sistem Komputer (C31040319)
Haii gengs, kembali lagi dengan aku jadi diblog kali ini kita akan membahas tentang VIGNERE CHIPER akan ada beberapa point penting yang akan kita bahas yaitu :
a. Carilah Chiper text berdasarkan proses Enkripsi
b. pesan "SUMPAH PEMUDA", KUNCI=KEJUJURAN
c. Lakukan pengembalian pesan dengan proses Deskripsi
Pembahasan :
VIGNERE CIPHER
Teknik Vigenere cipher merupakan jenis cipher abjad majemuk
yang paling sederhana. Vigenere cipher menerapkan metode substitusi poli
alfabetik dan termasuk ke dalam kategori kunci simetris dimana kunci yang
digunakan untuk proses enkripsi adalah sama dengan kunci yang digunakan untuk
proses dekripsi.
Pesan : SUMPAH PEMUDA
Kunci : KEJUJURAN
Tabel Acuan
pesan |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
kunci |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Penjelasan :
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 |
Enskripsi (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 |
Enskripsi Tahapan |
Tempatkan HURUF PESAN pada ruang BARIS, kemudian
cari HURUF KUNCI pada ruang KOLOM, sehingga titik temu (ISI) antara BARIS dan
KOLOM dari setiap huruf adalah chipper text |
|||||||||||
ChiperText |
CYVJJB GEZEHJ |
|||||||||||
Deskripsi (Chipper,
kunci) |
S |
U |
M |
P |
A |
H |
P |
E |
M |
U |
D |
A |
Deskripsi tahapan |
Berdasarkan HURUF chipper 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 |
Komentar
Posting Komentar