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Symposium Post-Quantum Cryptography (Episode II)

Act now, not later: "A closer look"

The Symposium Post-Quantum Cryptography is part of a series organized by CWI Cryptology Group and TNO. The first symposium in April 2021 was a general introduction to the problem from the perspective of industry, government, and end user. In this second episode we zoom in on a number of specific topics, including quantum-safe PKI, the relation between PQC and QKD, and PQC standards & implementation. The symposium is aimed at higher management and security professionals from government, private sector, and industry.

Cryptography is at the heart of internet security. However, much of the currently deployed cryptography is vulnerable to quantum attacks, which will become effective once large-scale quantum computers become feasible. Therefore, the affected cryptographic standards must be replaced by ones that offer security against quantum attacks. The post-quantum cryptography transition may take organizations ten years to complete, or longer. To remain secure and comply with legal and regulatory requirements, affected organizations should act now. What do you need to know - and what can you do - in order to continue your course of business securely?


Date and time

The symposium takes place Wednesday November 3rd, 2021, 3:00 pm - 5:00 pm CET as an online event.



Participation is free of charge, but registration is required. Do not miss it! You can register via the red button on this page. 



- Welcome and opening (Chris van ’t Hof)

- Introduction

- Keynote 1: “PQC or QKD?” (Kenneth Paterson)

- Keynote 2: “PKI government and post-quantum cryptography, not necessarily difficult, certainly complicated” (Robert Leyting)

- Short break

- Keynote 3: “Defending cryptographic implementations against advanced physical attacks” (Frans van Dorsselaer)

- Q & A and panel discussion (speakers and moderator)

- Wrap-up and outlook


Keynote Speakers

Kenneth Paterson (Professor of Computer Science at ETH Zurich) Kenny Paterson is the head of the Applied Cryptography Group in the Institute of Information Security at ETH Zurich. The focus of his research is on bridging the gap between theory and practice in cryptography. Kenny served as the Editor in Chief for the IACR's Journal of Cryptology, and he has been a fellow of the IACR since 2017.

Frans van Dorsselaer (Principal Architect at Fox Crypto) Fox Crypto develops high assurance products that protect top secret information against the highest level of attackers, including APTs such as state actors with a high knowledge level and virtually unlimited resources. Their solutions also focus on physical attacks, where attackers have access to one or more devices. This means that besides the mathematical soundness of the cryptographic functionality, the physics of the implementation is equally important. Their contribution highlights some of the practical obstacles modern cyber security solutions face when dealing with the most advanced adversaries. Fox Crypto is part of Fox-IT, which in turn is part of NCC Group.

Robert Leyting (Coordinator PKI government) Robert Leyting is the system ("stelsel") coordinator for PKI government.  Since 1998 he has been involved in risk and security management on a tactical and strategic level, within financial institutions, healthcare, IT services and government organizations. Robert's knowledge, experience and interests range from PKI, auditing, security management, security architecture, OSINT, pen testing to IT privacy.

Organizing committee

- Ronald Cramer (CWI & Universiteit Leiden)

- Serge Fehr (CWI & Universiteit Leiden)

- Maran van Heesch (TNO)

- Marc Stevens (CWI)

- Thijs Veugen (TNO & CWI) 




november 2021

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