Shannon and 5 good criteria of a good cipher
Symmetric-Cryptography
POSTECH ITEC559 Su 03 1 ITEC559 Secure Internet Protocols Lecture 1 POSTECH Prof. Jong Kim © 2003 JKIM@POSTECH.
Week 2 - Friday. What did we talk about last time? Substitution ciphers Vigenère ciphers One-time pad.
Lecture 3 Overview
Lecture 3 Overview. Ciphers The intent of cryptography is to provide secrecy to messages and data Substitutions – ‘hide’ letters of plaintext Transposition.
CS363
