Viable Satellite Free Space Optical Quantum Key Distribution Technologies (ViSatQT)

可行的卫星自由空间光量子密钥分发技术（ViSatQT）

• 批准号: 43037
• 金额: $ 45.7万
• 依托单位: AIRBUS DEFENCE AND SPACE LIMITED
• 依托单位国家: 英国
• 项目类别: CR&D Bilateral
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=43037
• 关键词: Viable; Satellite; Free; Space; Optical

Major organisations rely on strong encryption, including the process of encryption key agreement. Future quantum computers have the potential to compromise key agreement schemes based on asymmetric encryption and widely deployed Public Key Infrastructure.Over long distances and without quantum repeaters, Business Continuity (BC) can be maintained if commercially and technically viable Satellite Quantum Key Distribution (SatQKD) becomes available in time. Current free space optical approaches are not considered commercially viable because they can only operate at night time and in clear sky conditions; and by waiting for overhead satellites in Low Earth Orbit.The future BC market, anticipated to be worth billions of pounds, will be addressed by this project through accelerated commercialisation of the SatQKD technologies necessary for operation during daylight hours, cloudy skies and other weather conditions. The project will combine and align technical developments from UK SME's within a system context from Airbus: a major provider of UK-developed secure satellite communication systems.The objective of this project is to prepare new modular flexible system architectures, technology landscape surveys and technology development roadmaps for lower cost, longer range, free space optical quantum communications directed towards institutional and commercial customers.The primary focus of Innovation in this project is to extend the envelope of Satellite-to-Ground QKD operations beyond the current state of the art: to enable daytime operation, cloud tolerance and reach key distribution rates several orders of magnitude faster than existing demonstrators.The project will influence and enhance the coherence of academic research, SME developments, and prime system integration readiness for operational quantum secured communications.

主要组织依赖于强加密，包括加密密钥协议的过程。未来的量子计算机有可能危及基于非对称加密和广泛部署的公钥基础设施的密钥协商方案。如果商业和技术上可行的卫星量子密钥分发(SatQKD)及时可用，则可以在远距离且没有量子中继器的情况下保持业务连续性(BC)。目前的自由空间光学方法被认为在商业上是不可行的，因为它们只能在夜间和晴朗的天空条件下运行，而且只能在低地球轨道上等待头顶卫星。未来的BC市场预计价值数十亿英镑，该项目将通过加速将在白天、多云天空和其他天气条件下运行所需的SatQKD技术商业化来满足这一需求。该项目将在英国开发的安全卫星通信系统的主要供应商空中客车公司的系统环境中结合和调整英国中小企业的技术开发。该项目的目标是为面向机构和商业客户的低成本、更远距离的自由空间光量子通信准备新的模块化灵活的系统架构、技术概况调查和技术发展路线图。该项目的主要创新重点是将卫星对地面QKD操作的范围扩展到当前最先进的状态之外：实现白天操作，该项目将影响和增强学术研究、中小企业发展以及运营量子安全通信的主要系统集成准备工作的一致性。