Applied Cryptography

About this Course

Cryptography is present in everyday life, from paying with a credit card to using the telephone. Learn all about making and breaking puzzles in computing.

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Explore how secrets are written and shared, as well as what can go wrong when cryptography is misused or implemented badly.

lesson 1
Perfect Ciphers
What makes certain ciphers perfect.
How the Lorenz Cipher was broken.
lesson 2
Symmetric Encryption
Sending messages when two people share a secret.
lesson 3
Key Exchange
Techniques to establish a shared secret.
lesson 4
Asymmetric Encryption
Exchanging information using public key cryptosystems.
lesson 5
Public Key Protocols
Encrypted key exchange, certificates, secure commerce.
lesson 6
Using Cryptographic Primitives
How cryptography can be useful for anonymizing communication, voting, and digital cash.
lesson 7
Secure Computation
Computing without exposing data.