Realizing quantum-safe information sharing: Implementation and adoption challenges and policy recommendations for quantum-safe transitions

By utilizing the properties of quantum mechanics, quantum computers have the potential to factor a key pair of a large prime number and break some of the core cryptographic primitives that most information infrastructures depend on. This means that today's widely used cryptographic algorithms can soon become unsafe and need to be modified...

Secure Payments in the Quantum Era: A Technology Roadmap for the Post-Quantum Cryptography Transition in the Dutch Banking Sector

In 2019 a quantum computer performed a highly complex operation in 4 minutes, which would have taken the most powerful supercomputers of today around 10,000 years. Performing calculations unimaginably faster than is currently possible may bring great opportunities, but may implicate a threat to digital communications. Digital communication is...

On McEliece-Type Cryptosystems Using Self-Dual Codes With Large Minimum Weight

One of the Round 3 Finalists in the NIST post-quantum cryptography call is the Classic McEliece cryptosystem. Although it is one of the most secure cryptosystems, the large size of its public key remains a practical limitation. In this work, we propose a McEliece-type cryptosystem using large minimum distance error-correcting codes derived from...

Challenges in the Transition towards a Quantum-safe Government

The computation power of quantum computers introduces new security threats in Public Key Infrastructure (PKI), a system used by many governments to secure their digital public services and communication. This calls for an inevitable need for governments to be quantum-safe (QS) by modifying their PKI systems to be resistant to the attacks of...

On Code-based Cryptosystems using binary codes with large minimum distance: Post-Quantum Cryptography

Code-Based Cryptography is a branch of the Post-Quantum Cryptography research area. As such, its focus is on developing algorithms that can be used in the current communication systems to secure them against an adversary powered in the (near) future by a quantum computer. A code-based type cryptosystem is a public key cryptosystem that is...

Quantum resource-saving protocols for early quantum networks

The Internet as we know it has had an immense impact on the way we communicate. We can now do it faster and more securely than ever before. Enabling quantum communication between any two points on Earth is the next step towards even more secure communication. This is the goal of the quantum internet. Although it is hard to predict all of the...

Comparative case study into the barriers that prevent QKD and Tokamak nuclear fusion power plants from large scale diffusion

This research has the aim to investigate the large pre-diffusion period for two<br/>technologies: quantum cryptography and nuclear fusion power plants. Both technologies originate from basic physics research, have a high societal value and are a business to business product. First, a status overview of the technologies is given together with its...

Verifiable hybrid secret sharing in the presence of noise

Verifiable quantum secret sharing (VQSS) is the task of sharing a secret quantum state among the n nodes of a quantum network, in a way that it is possible to verify that the secret has been correctly distributed. A number of protocols that perform this task have been proposed. In particular, the verifiable hybrid secret sharing (VHSS) scheme...

Modelling of satellite constellations for trusted node QKD networks

Quantum key distribution from satellites becomes particularly valuable when it can be used on a large network and on-demand to provide a symmetric encryption key to any two nodes. A constellation model is described which enables QKD-derived encryption keys to be established between any two ground stations with low latency. This is achieved...

Device Independent Quantum Key Distribution in the Finite Key Regime

Relaxing the assumptions about the experimental setup in Quantum Key Distribution protocols lays the foundation for Device Independent Quantum Key Distribution (DIQKD). In the finite key regime of DIQKD, the protocols employ the use of only the CHSH inequality, so far. A natural question therefore arises whether are there other Bell inequalities...

Fundamental Limits on the Capacities of Bipartite Quantum Interactions

Bipartite quantum interactions have applications in a number of different areas of quantum physics, reaching from fundamental areas such as quantum thermodynamics and the theory of quantum measurements to other applications such as quantum computers, quantum key distribution, and other information processing protocols. A particular aspect of...

The societal impact of the emerging quantum technologies: a renewed urgency to make quantum theory understandable

This paper introduces the special issue The societal impact of the emerging quantum technologies as a contribution to a more inclusive societal debate on quantum technologies. It brings together five contributions. Three are authored by quantum technology researchers who give explorations of the possible impacts of quantum technologies on...

Device-independent two-party cryptography secure against sequential attacks

The goal of two-party cryptography is to enable two parties, Alice and Bob, to solve common tasks without the need for mutual trust. Examples of such tasks are private access to a database, and secure identification. Quantum communication enables security for all of these problems in the noisy-storage model by sending more signals than the...