You will perform your research as part of the DACS group, the Twente University Centre for Cybersecurity Research (TUCCR) and the international context. Interaction with international network operators and Internet standards bodies, such as the Internet Engineering Task Force (IETF), will also be part of the project. You will publish and present your work at international conferences and in journals. You will also have the opportunity to present your work in the Internet operator community, e.g., at RIPE meetings. You will collaborate and interact with a second PhD candidate in the same project, but with a different focus.

Cryptographers are developing post-quantum cryptography (PQC) that is secure against attacks with quantum computers. While much progress has been made in developing and trialling algorithms, we lack a complete view of the problem space. More boldly: we cannot answer the question "What if the whole Internet had to switch to PQC?". The SHARQS project (a Systematic Holistic Approach to Re-engineering a Quantum-Safe Internet) aims to tackle this question.

In the SHARQS project, we will empirically establish the algorithm life-cycle in Internet protocols and applications and use a model-driven approach to test the feasibility of replacing existing algorithms with PQC alternatives, which may have vastly different properties in terms of processing, bandwidth and memory requirements. The outcomes of the project will be actionable, empirically backed advice for operators, standards bodies and policymakers. SHARQS targets both the transition of the "mainstream" Internet and specific applications and protocols used in the context of the Internet of Things and Industrial Control Systems. This vacancy consists of 2 different PhD positions. Each position has a different focus and we urge you to state your preference in your motivation letter.

PhD position 1: Your research will focus on the challenges of transitioning the Internet-of-Things and Industrial Control Systems to post-quantum cryptography.

PhD position 2: Your research will focus on the challenges of transitioning the "mainstream" Internet to post-quantum cryptography.

• You have an MSc degree; applications from students who are about to finish their MSc degree studies will be considered as well;
• You are interested in (Inter)networking and cybersecurity;
• You are curious and interested in learning how things work and how to make them better;
• You have a good team spirit and like to work in an internationally oriented environment;
• You are proficient in English.

• As a PhD student at the UT, you will be appointed to a fully paid full-time position for four years, with a qualifier in the first year, within a very stimulating scientific environment;
• We strive to be family-friendly and offer maternity and parental leave to all employees;
• The university offers a dynamic, international ecosystem with enthusiastic colleagues;
• The DACS group is a thriving diverse environment, with a strong team spirit;
• Your salary and associated conditions are in accordance with the collective labour agreement for Dutch universities (CAO-NU);
• You will receive a salary ranging from around €2.770,- gross per month in the first year to around €3.539,- in the fourth year;
• Benefits include a holiday allowance of 8% of the gross annual salary, a year-end bonus of 8.3% and a solid pension scheme;
• You will have a training programme as part of the Twente Graduate School in which you and your supervisors will make a plan for additional suitable education and supervision;

Twente University Centre for Cybersecurity Research (TUCCR)
The PhD position is embedded into the Twente University Centre for Cybersecurity Research (TUCCR), which is a public-private partnership where experts, professionals, entrepreneurs, researchers, and students from industry and knowledge partners collaborate to deliver talents, innovations, and know-how in the domain of cybersecurity. The mission of TUCCR is to strengthen the security and digital sovereignty of our society by performing top-level research on real-world data and network security challenges. Key outputs include innovation in the shape of technologies, tools, minimum viable products, start-ups, top-tier scientific publications as well as first-class graduates at Bachelor, Master, and Ph.D. level. TUCCR’s founding partners are Betaalvereniging Nederland, BetterBe, Cisco, NCSC, NDIX, Northwave, SIDN, SURF, Thales, TNO, and the University of Twente. TUCCR has the ambition to be a recognized thought leader in the domain of cybersecurity and to be amongst the top cybersecurity research & innovation centres in the Netherlands. It aims at having strong societal impact and at increasing the economic activity in the field of cybersecurity.