Hashing: Basics and Applications

This lecture covers the fundamentals of hashing, including data representation, cryptographic hashing, and current versions and attacks. It explains the concept of hashing as a unique and concise representation of digital data, its applications in data security, and its role in anonymization, password storage, and blockchain technology. The lecture also delves into the requirements of cryptographic hashing, security considerations, and examples of simple hashing techniques. Additionally, it explores common attacks on hash functions, the importance of using unique salts for secure hashing, and the implications of rainbow tables in password security.