Embark on a 40-minute journey through the fascinating realm of cryptography in this BSides Philly 2016 conference talk. Explore key concepts such as asymmetric cryptography, computational and decision Diffie-Hellman protocols, and magical mapping. Delve into symmetric encryption, understanding Feistel networks and the significance of three rounds. Examine various encryption algorithms, ciphers, and the importance of padding in cryptographic processes. Gain valuable insights into the intricate world of crypto land, enhancing your understanding of essential security principles and techniques.