Cryptography - Week 1
TL; DR
- Sym. encryption
- One Time Pad
- Shannon: Perfect secrecy
- History - Badly broken algorithms
- Stream cipher - OTP in real life
- Probability basics
- Pseudo random gen - predictable
- Negligible / Non-negligible
Topics
Sym. encryption definition
What
- Sender and receiver use the same secret key for encryption and decryption,
- or the same encryption scheme …