More Secrets of Cryptography

Explore advanced cryptography concepts in this PHP UK Conference talk. Delve into hash functions, elliptic curves, and quantum cryptography after a brief refresher on secure communication basics. Examine practical applications, including the trustworthiness of web of trust systems and the appropriate use of blockchain technology. Learn about symmetric vs asymmetric encryption, elliptic curve cryptography, key exchange methods, and the SHA2 family of hash functions. Investigate Merkle trees, Bitcoin's underlying technology, blockchain fundamentals, and the factors contributing to Bitcoin's value. Gain insights into cutting-edge cryptographic techniques and their real-world implementations in this comprehensive presentation.

Intro
Why do I need cryptography
Confidentiality
Symmetric vs Asymmetric
Elliptic Curve Cryptography
Curve Cryptography
Curve Key Exchange
Web of Trust
Can you trust
Hash functions
SHA2 family
SHA256
prescient function
Merkle tree
Hash tree
Merkle hash tree
Bitcoin
Blockchain
How Bitcoin works
Why do Bitcoins have value
Questions