Explore the world of elliptic curve cryptography and its applications in blockchain technology through this conference talk. Delve into the fundamentals of elliptic curves, their role in cryptography, and the discrete logarithm problem. Examine elliptic curve schemes and their implementation in Bitcoin, including deterministic wallets and Bitcoin Improvement Proposals. Learn about the use of public keys, Easy DSA, and the concept of child keys and private keys. Gain insights from security researcher Yolan Romailler, known for his work in cryptography, blockchain technologies, and vulnerability research, as he shares his expertise on creating "One Key To Rule Them All."