Operational cryptography – Real protocols and path towards quantum resilience

The lecture centres on applied cryptography through the lens of real-world protocols and standards, rather than abstract fundamentals. By dissecting IKEv2, CMS, and PKI, we will see how cryptographic primitives are invoked at specific points in the protocol flow-key exchange, KDFs, integrity checks, authentication, anti-replay, anti-Dos, and non-repudiation. Each protocol becomes a case study in how cryptography is embedded into operational systems, with dissected protocols, signed documents, and certificate chains serving as tangible examples.

The flow then transitions naturally into the emerging challenge of quantum resiliency. Highlights on how hybrid approaches-classical plus post-quantum algorithms-are being integrated into IKEv2 handshakes, CMS signatures and envelope, and PKI certificate profiles. This section emphasizes the staged migration strategies enterprises are adopting, showing how assurance boundaries shift as quantum-safe primitives are introduced. The audience sees cryptography not as static math, but as evolving infrastructure responding to adversary models and industry standards.

Speaker’s profile

With over two decades of experience in information security, Boon Quee has led technical teams in developing advanced network security products and served as a lead security architect on numerous classified and commercial projects. His portfolio includes work on encryptors, data leak prevention solutions, and comprehensive cybersecunty systems, all anchored by a strong specialization in cryptography.