Beyond PKI: Rethinking Trust in the Quantum Era (K00a)
Today, it is essential to not only upgrade out public key systems but also a time to rethink the traditional reliance on public key infrastructure. Entreprises must not only reduce exposure from quantum-vulnerable algorithms, but also to support the agility required for a resilient future. Architectures that leverage symmetric keying, from Kerberos or more modern protocols, can provide part of a core strategy with significant benefits: simplified system design, reduced computational overhead, lower implementation costs, dynamic keying, and increased resistance to future cryptanalytic attacks. Symmetric based solutions offer reduced computational overhead, and cost-effective implementation, while providing a robust and agile security foundation for the vast network of constrained IoT devices. This offers a practical path to a post-quantum future. Furthermore, this approach has the potential to provide increased security, widen the quantum delta, and enhance cryptographic agility—enabling systems to adapt quickly as standards evolve or new threats emerge. In this talk, the speakers explore how symmetric-first designs ease migration burdens, mitigate complexity across hybrid deployments, and provide a robust, adaptable foundation for long-term defense-in-depth security. This paradigm shift offers a practical, cost-effective, and future-ready pathway to post-quantum resilience, especially critical for constrained environments and high-assurance systems.