Today, cryptography is everywhere! This course presents the basic paradigms and principles of modern (post-1980s) cryptography. It provides a rigorous treatment of modern cryptography in an accessible manner. The course examines the inner workings of cryptographic primitives with formal definitions of security and precise assumptions in order to achieve guaranteed security. It covers both private-key (symmetric) and public-key (asymmetric) cryptography in depth with supportive algorithms and protocols for encryption, message digest,digital signature, key distribution, and so on. Students assess the security of cryptographic constructions and apply them to real-world applications with confidence. 3 Credits