Diffie-Hellman Cryptography: Key Exchange and Fields

This lecture covers the Diffie-Hellman key exchange protocol, the concept of orders in a group, the Z_p field, and the challenges posed by the Discrete Logarithm Problem. It also discusses the computational Diffie-Hellman problem, the Decisional Diffie-Hellman problem, and the implications of hardness depending on the properties of groups.