Conférences  >  Mathématiques  >  Cryptographie, blockchain et sécurité de l'information

Optica

Join us for the OPTICA Online Industry Meeting on Quantum Key Distribution (QKD), where experts will discuss the latest developments and future prospects of secure communication technologies. This event will address the current challenges in QKD implementation, such as achieving long-distance quantum entanglement distribution, overcoming noise and loss in quantum channels, and integrating QKD with existing network infrastructures. These challenges are crucial to ensure the reliability and scalability of quantum-secure communication systems. The meeting will also highlight the opportunities presented by QKD, including unparalleled security through quantum principles, resistance against cryptographic attacks by quantum computers, and the potential to establish global secure communication networks.

Key topics will include advancements in quantum repeaters, quantum cryptography protocols, and practical applications of QKD in sectors such as finance, healthcare, and government. Engage with industry leaders to explore strategies for advancing QKD technology and its role in shaping the future of secure communications.

The 15th Blockchain Life Forum is the highly anticipated crypto event of 2025, drawing over 12,000 attendees, including leading figures in web3, cryptocurrencies, and mining. This premier gathering will feature founders and top executives from the industry's most prestigious companies, who will share crucial strategies for capitalizing on the upcoming Bull Run. Moreover, attendees will enjoy exclusive access to behind-the-scenes negotiations and gain valuable insights from private discussions. With unparalleled networking opportunities within this elite community, Blockchain Life 2025 is positioned to be the must-attend event shaping the future of the crypto industry.

Schloss Dagstuhl – Leibniz-Zentrum für Informatik GmbH

IT Security plays a vital role in our society. For example, when multiple parties communicate via a mobile phone or chat, or during online shopping, security takes a decisive part in protecting the users, the service operators, and in maintaining public confidence in the system. Cryptography is an essential concept to be implemented in the underlying system. Modern cryptography can be divided into two distinct subareas, symmetric cryptography (where all parties share the same secret key) and asymmetric cryptography (where all parties are in possession of a public key and a private key). We plan to discuss in detail timely topics related to the design and analysis of symmetric cryptographic schemes.

The International Centre for Mathematical Sciences (ICMS)

While lattice-based cryptography has been successful, a consensus is forming that we have reached a limit of what we can do from such well-established problems. Thus, researchers are introducing novel variants of these presumed-hard problems to develop quantum-safe privacy-enhancing technologies (PETs). Many PETs lack efficient lattice-based or other efficient post-quantum constructions. Examples include advanced encryption schemes with fine-grained access control, blind signatures, anonymous credentials, oblivious PRFs, and threshold constructions. Adopting novel hardness assumptions reflects a long-standing tension in cryptography: more structure enables advanced functionalities but may offer flexibility to solve presumed-hard problems, invalidating their hardness. As these assumptions proliferate, the risk grows that they remain understudied and may lack the robustness to serve as foundations for a privacy-respecting post-quantum digital society.