Kriptografi.

Presentasi berjudul: "Kriptografi."— Transcript presentasi:

1 Kriptografi

2 Kritografi Kritografi “kuno” Kriptografi Modern Subtitusi Cipher
Transposisi Cipher Kriptografi Modern

3 Kriptografi Kuno Subtitution Cipher Transposition Cipher
Monoalphabetic Cipher Polyalphabetic Cipher Transposition Cipher Mirror/Reverse, Rail Fence, Geometric Figure Row Transposition Cipher Block Transposition Cipher ADVGFX Product Cipher

4 Monoalphabetic Cipher
Caesar Chiper L FDPH L VDZ L FRQTXHUHG I CAME I SAW I CONQUERED Mixed Monoalphabetic Cipher A M I K O M D C W E H C

5 Monoalphabetic Cipher
Easier Monoalphabetic Cipher B E R D A S I M O C K A D S Kelemahan : Frekuensi kemunculan huruf tidak dapat dihilangkan

6 Polyalphabetic Cipher
Vigenere CiPHER

7 Polyalphabetic Cipher
Beuford Cipher

8 Polyalphabetic Cipher
Varian Beuford Cipher

9 Polyalphabetic Cipher
Autokey Cipher Book Chiper Mengambil kunci dari suatu alamat buku

10 Transposition Cipher Reverse Cipher Rail Fence cipher Geometric Figure
AHAS UGNE PNOLA CTAP METMO KIMA Rail Fence cipher JLN AIR NYGA ATA AKLU AGOY KRA Geometric Figure KSEDIR IFERAP TRHA NAGO

11 Transposition Cipher Row Transposition Cipher Kunci :
Chipertext : EAPTM KILTU HLAAC NNEOP UHAGS AAAAA Kunci :

12 Transposition Cipher Block(Cloumnar) Transposition Cipher
Chipertext : EKH NUAA ILNHA PLAE AATTAO GAMUC PSA

13 Transposition Cipher Nihilist Transposition Cipher
Chipertext : NNEO PEAP TMUH AGSH LAAC KIL TUAA AAA

14 Transposition Cipher Diagonal Transposition Cipher
Chipertext : EAKHI PTLLN UNAT MUAE JAAAO CPGA ASA

15 Transposition Cipher ADFGVX Product Transposition Cipher
Plaintext : A M I K O M Intermediate : GV XX XF AA VD XX

16 Transposition Cipher Plaintext : A M I K O M
Intermediate : GV XX XF AA VD XX Kemudian dilakukan transposisi dengan suatu kunci mis key : DASI (2143) Ciphertext : VFDGXV XAXXAX