Bill Buchanan OBE Courses

Web Security and Encryption: From Browser Telemetry to Enterprise TLS - Guest Lecture

A guest lecture examining web security, encryption, TLS, DNS privacy, browser telemetry, and the debate over backdoors.

• YouTube
• 59 minutes
• Self-Paced
• Free Video

DER, PEM and Crypto Formatting

Explore how DER and PEM encode cryptographic keys and certificates, then parse ASN.1 structures and convert formats with Python.

• YouTube
• 21 minutes
• Self-Paced
• Free Video

Introduction to Hashing

Understand how cryptographic hashes verify data, protect passwords, authenticate messages, and resist collisions.

• YouTube
• 32 minutes
• Self-Paced
• Free Video

Addition, Multiplication and Division in Galois Fields GF(2^m)

An introduction to arithmetic in GF(2^m), using polynomial representations and primitive polynomials for addition, multiplication, division, and cryptographic computations.

• YouTube
• 22 minutes
• Self-Paced
• Free Video

Data & Cyber - Introduction to Data Science

An introduction to combinations, probability, Bayes theory, correlation, and distributions for cybersecurity analysis.

• YouTube
• 38 minutes
• Self-Paced
• Free Video

Cyber & Data - Intrusion Detection Systems

Learn to detect reconnaissance, scans, logins, file transfers, and other threats by writing practical Snort intrusion-detection rules.

• YouTube
• 37 minutes
• Self-Paced
• Free Video

Cyber & Data - Similarity and Matching

Compare data strings using edit distances, phonetic matching, similarity hashes, and regular expressions to find patterns and manage false positives.

• YouTube
• 30 minutes
• Self-Paced
• Free Video

Web Attacks

A practical introduction to web attacks using HTTP interception, vulnerable applications, and demonstrations of injection and authentication flaws.

• YouTube
• 27 minutes
• Self-Paced
• Free Video

Hash Cracking

Learn how Hashcat uses dictionary, rule-based, mask, and brute-force attacks to crack password hashes and strengthen password storage.

• YouTube
• 38 minutes
• Self-Paced
• Free Video

Spanning Tree Protocol (STP) in Cisco Networks - Key Concepts and Enhancements

Explore how Spanning Tree Protocol prevents switching loops through root switch election, port selection, convergence, and Cisco enhancements.

• YouTube
• 21 minutes
• Self-Paced
• Free Video

Advanced Cryptography - Tunnelling SSL/TLS/VPN

Explore SSL/TLS tunnelling, the Heartbleed vulnerability, and VPN key exchange, negotiation, and routing through OpenSSL examples and live demos.

• YouTube
• 55 minutes
• Self-Paced
• Free Video

Radio Wave Fundamentals for Wireless LANs - Part 1

An introduction to the radio-wave fundamentals behind wireless LANs, including electromagnetic waves, transmission methods, spectrum communications, and relevant standards.

• YouTube
• 22 minutes
• Self-Paced
• Free Video

Introduction to Cryptography Part 2 - Public Key and Key Exchange

Explore public-key cryptography through Diffie–Hellman key exchange, one-way hashes, and salt-based examples.

• YouTube
• 29 minutes
• Self-Paced
• Free Video

Malware Analysis: Types, Classification, and Analysis Techniques

An overview of malware analysis methods, from taxonomy and classification to dynamic monitoring, malware capture, and file analysis.

• YouTube
• 1 hour 8 minutes
• Self-Paced
• Free Video

Digital Investigation: Ethernet, IP, TCP and UDP Protocols

Explore Ethernet, IP, TCP, and UDP through network layers, packet headers, flags, ports, and Wireshark.

• YouTube
• 30 minutes
• Self-Paced
• Free Video