Cryptography 1

Keywords: Crypto Class Coursera Cryptogrophy

Video Lectures

Week 1 : Introduction

Overview

Crypto is everywhere. This course will cover symmetric encryption.

A cipher consists of E and D - the encryption and decryption algorithm. They should be know algorithms, not proprietary.

What is Crypto

Uses:

• Digital signatures
• Mix net - allows anonymous communications
• Digital currency
• Elections
• Private auctions
• Secure multi-party computation
• Privately outsourcing computation

Theorm: Anything that can be done with a trusted authority can also be done without a trusted authority.