Symmetric and asymmetric encryption, certificates, secure communication and early ciphers

What this note covers

1. Symmetric encryption
2. Asymmetric encryption and the role of each key
3. Certificates: binding a public key to an identity
4. Secure communication over the internet: the hybrid approach
5. Early methods of encryption and their weaknesses
6. Current methods and best practice
7. Exam technique for cryptography questions

7 sections · 12 key terms & formulas · 6 common mistakes