The focus of this module is to provide a core understanding of the fundamental areas of cryptography, identity, and trust. A key feature is to cover both the theoretical areas, while often demonstrating practical applications including key protocols. The module key areas are:• Privacy, and Cryptography Fundamentals (Confidentiality, Sec Models, Cipher types) • Asymmetric Key Encryption. Including RSA and Elliptic Curve Cryptography (ECC).• Symmetric Key Encryption. Including AES and associated modes.• Hashing and MAC Methods. Including MD5, SHA-1, SHA-256, SHA-3 and PBKDF2.• Security Protocols: HTTPS, SSL/TLS, DNSSec, IPSec, WPA • Key Exchange. Diffie-Hellman Method, ECDH.• Trust Infrastructures. Digital Certificates, Signatures, Key Distribution Centres (Kerberos), OAuth • Identity and Authentication (Passwords, Authentication tokens, Keypair identity, Multi-factor, Biometric Authentication).• Distributed Systems: Blockchain, Distributed Ledgers and Cryptocurrency. Smart Contracts, Data Tokenization, and Transactions.• Future Cryptography: Zero Knowledge Proof, Homomorphic Encryption, Light-weight cryptography, and Quantum robust methods.• Host and Domains: Trust systems. Authentication with Active Directory Authorisation: Log integration and rights.