The document discusses encryption and hashing techniques. It introduces symmetric encryption methods like the Caesar cipher and simple substitution cipher. Examples are provided to illustrate shifting letters in the Caesar cipher and substituting keywords in a simple substitution cipher. Links are included to diagrams and images about encryption, hashing, and cryptographic techniques.

1. Network Security – Pertemuan 7
charismapribadi

2. Encryption atau enkripsi? Asal mulanya?

3.  Hashing, Hash Function dan Cryptographic Hash Function?

4.  Enkripsi Konvensional (Symmetric Encryption)

5.  Caesar cipher (Shift Cipher)
 Simple Substitution Cipher
 Route Cipher

6. Contoh soal
 Pesan: Aku disini sendiri
 Char sequence:
aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ0123456789
`~!
 Langkah: 3 kanan

7. Contoh soal
Plaintext: kamu disana dengan dia
Keyword: sedih

8. Contoh soal
 Pesan: tetap tersenyum meski hati terluka

10.  http://www.elitetechsinc.com/wp-content/uploads/2010/06/Data-Encryption.png
 http://www.iri.com/blog/wp-content/uploads/2013/02/Hashing-Image.jpg
 http://1.bp.blogspot.com/-
bRcr6TtkMF4/UFAGEGlVvgI/AAAAAAAAAJE/7dEnegMl6C4/s1600/encryption+and+
decryption.JPG
 https://lh4.ggpht.com/Ikd8eXRbOL_Eg4ugI04NG7V2Qlx34NQf0n0YG-EwSP3UkvsjAObHxW6gb8_
aXUo3HYU=w300
 http://upload.wikimedia.org/wikipedia/commons/thumb/3/33/ROT13_table_with_exam
ple.svg/320px-ROT13_table_with_example.svg.png
 http://4.bp.blogspot.com/_NZXNrNnQEZ4/S7FcQiAu00I/AAAAAAAAACw/CRAUTWfR
fKM/s1600/Picture1.png
 http://williamstallings.com/Extras/Security-Notes/lectures/figs/classical13.gif