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Delft University of Technology

Quantum-safe Digital Infrastructures: Technical Challenges and Solutions

Delft University of Technology via edX

Overview

As quantum computing continues to evolve, traditional cryptographic systems face increasing risks. Many of the encryption and trust mechanisms used today, including Public Key Infrastructure (PKI), will become vulnerable to quantum attacks. Organizations must proactively adapt their digital infrastructures to ensure long-term security and interoperability.

This course provides a structured introduction to the technical aspects of quantum-safe migration. Participants will become familiar with the fundamental cryptographic principles before exploring trust infrastructures for public keys and the role of digital certificates in securing online communications. The course also introduces hybrid security models, which blend classical and quantum-resistant cryptographic models to facilitate a smoother transition.

Through five modules, learners will gain insights into key migration challenges, post-quantum cryptographic solutions, and real-world implementation strategies. The course also examines hybrid cryptography and digital certificates, highlighting challenges such as compatibility, performance, and governance. Case studies from the HAPKIDO (Hybrid Approach for quantum-safe Public Key Infrastructure Development for Organizations) project and proof-of-concept implementations provide hands-on perspectives on integrating quantum-safe cryptographic solutions into existing infrastructures.

Designed for cybersecurity professionals, IT architects, policymakers, and business leaders, this course delivers a comprehensive overview of quantum-safe infrastructures. By the end, participants will be equipped to evaluate risks, design resilient security frameworks, and implement strategies for quantum-safe digital transformation.

Whether you're an industry professional looking to future-proof your organization's security or an academic exploring quantum-safe cryptography, this course provides practical knowledge and cutting-edge insights to ensure a successful quantum transition.

Syllabus

Week 1:

  • Introduction to Cryptography​
  • Quantum Computing and Post-Quantum Cryptography (PQC)​

Week 2:

  • Trust Infrastructures for Public Keys​
  • Anatomy of a PKI​

Week 3:

  • Introduction to hybrid security and its advantages and disadvantages​
  • Introduction to cryptographic combiners and specific combiner constructions

Week 4:

  • The structure and purposes of Digital Certificates​
  • Hybrid certificate standards​

Week 5:

  • A first-hand experience​
  • Summary: Key concepts​

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