Cryptography Basics: Pseudo-Random Generators and Block Ciphers

In a world increasingly reliant on digital security, understanding the bedrock of cryptography is crucial. Pseudo-Random Generators (PRGs) and Block Ciphers are fundamental components that underpin secure communication and data protection. This course provides a clear, conceptual understanding of how these essential cryptographic primitives work, enabling you to grasp the security implications of their design and application. What you'll learn: Understand the core concepts of cryptography, including one-way functions and computational hardness. Learn how Pseudo-Random Generators (PRGs) are constructed and used to create unpredictable sequences. Master the design principles of Block Ciphers, including substitution-permutation networks and common algorithms. Explore various modes of operation for block ciphers, including modern authenticated encryption schemes. Apply fundamental principles for securely using cryptographic primitives in real-world scenarios. Practice analyzing the security properties and potential vulnerabilities of PRGs and Block Ciphers. The course begins with foundational cryptographic definitions and mathematical concepts, progressing through the detailed construction and application of PRGs and various block cipher designs. It then covers practical aspects of their secure use and common modes of operation. This course is designed for absolute beginners with no prior cryptography experience, aspiring developers, security enthusiasts, or anyone curious about how digital security works at its core. No prerequisites are required. Start your journey into the fascinating world of cryptography today.