Cryptographic Security Models

This lecture covers the concepts of Cryptographic Security Models, including Diffie-Hellman Security, ElGamal Security, and Cryptanalysis in Public-Key systems such as RSA. The instructor explains the Decisional Diffie-Hellman Problem, CDH vs DL Problems, and the Key Recovery Problem in DH. The lecture also delves into the practical problems with ElGamal Encryption, RSA Engineering, and Broadcast Encryption with Low Exponent. Various attacks on low exponents and keys are discussed, emphasizing the importance of security in encryption systems.