SYMMETRIC CIPHERS
Contents
1) Block Cipher Principles
2) Feistel Cipher
3) Data Encryption Standard (DEC)
ASYMMETRIC
CRYPTOLOGY
CRYPTOGRAPHY CRYPTANALYSIS
SYMMETRIC
CLASSICAL MODERN
Substitution
Transposition
Block ciphers
Stream ciphers
1. Block Cipher Principles
Stream Ciphers and Block Ciphers
A stream cipher is a type pf symmetric encryption in which input data is
encrypted one bit (byte) at a time.
