Beyond Cryptography
summary
A historical overview of how cryptography has evolved, explaining the mathematical tools behind classic and modern systems and showing why current cryptographic schemes arise from those problems. Covers symmetric and asymmetric cryptography plus less-known but practically important protocols for blockchain such as digital signatures and zero-knowledge proofs.
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chapters (16)
- 0:00Introduction
- 1:44Steganography history and limits
- 3:30Primitive crypto and frequency analysis
- 6:18Vigenère cipher and unbreakable encryption
- 9:05Key distribution problem
- 11:55Diffie-Hellman protocol explained
- 13:25Multiplicative groups and discrete log
- 16:56Discrete log security
- 18:44Elliptic curve cryptography
- 21:34Public key crypto and RSA
- 22:57Math difficulty in crypto
- 24:23Quantum computers impact
- 25:03Beyond encryption crypto
- 26:21WhatsApp security
- 28:09PGP and secure comms
- 30:17Closing and thanks
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