تقرير
Distributed Symmetric Key Establishment: A scalable, quantum-proof key distribution system
| العنوان: | Distributed Symmetric Key Establishment: A scalable, quantum-proof key distribution system |
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| المؤلفون: | Lo, Hoi-Kwong, Montagna, Mattia, von Willich, Manfred |
| سنة النشر: | 2022 |
| المجموعة: | Computer Science Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Computer Science - Cryptography and Security, 94A60, E.3 |
| الوصف: | We propose and implement a protocol for a scalable, cost-effective, information-theoretically secure key distribution and management system. The system, called Distributed Symmetric Key Establishment (DSKE), relies on pre-shared random numbers between DSKE clients and a group of Security Hubs. Any group of DSKE clients can use the DSKE protocol to distill from the pre-shared numbers a secret key. The clients are protected from Security Hub compromise via a secret sharing scheme that allows the creation of the final key without the need to trust individual Security Hubs. Precisely, if the number of compromised Security Hubs does not exceed a certain threshold, confidentiality is guaranteed to DSKE clients and, at the same time, robustness against denial-of-service (DoS) attacks. The DSKE system can be used for quantum-secure communication, can be easily integrated into existing network infrastructures, and can support arbitrary groups of communication parties that have access to a key. We discuss the high-level protocol, analyze its security, including its robustness against disruption. A proof-of-principle demonstration of secure communication between two distant clients with a DSKE-based VPN using Security Hubs on Amazon Web Server (AWS) nodes thousands of kilometres away from them was performed, demonstrating the feasibility of DSKE-enabled secret sharing one-time-pad encryption with a data rate above 50 Mbit/s and a latency below 70 ms. Comment: Our protocol has been renamed Distributed Symmetric Key Establishment (DSKE). 11 pages, 6 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2205.00615 |
| رقم الأكسشن: | edsarx.2205.00615 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |