Hash Functions, Digital Signatures and Quantum Cryptography

The lecture is a part of ACM India Winter School on cryptography and cybersecurity organized by VIT, Vellore. This is the eighth lecture and the previous six lectures are as follows: Cryptography Introduction: https://youtu.be/b5SgmDtRRVQ Classical Ciphers Part 1: https://youtu.be/-ZqofDJptqk Classical Ciphers Part 2: https://youtu.be/mN-SVVdueBs Block Ciphers & Fiestel Networks: https://youtu.be/EJRDo0_qraY Data Encryption Standard: https://youtu.be/og_dD5jQBw8 Advanced Encryption Standard: https://youtu.be/-oKBPG8G0jE Public Key Cryptography: https://youtu.be/A4z7Q3oLIpw This lecture introduces Hash functions, SHA-512 algorithm, Message Authentication, and Digital Signatures. Also, this lecture introduces Quantum Cryptography.