Quantum Cloud with Communication, Computing, Caching, and Cipher (4C) Resource Coordination

The cloud services requiring communication, computing and caching (3C) resources are supported by datacenter networks (DCNs). The service security is threatened due to the development of quantum computers. Quantum key distribution (QKD) technology promises to share secret keys as cipher resources between remote users with information-theoretic security. The quantum cloud is illustrated which is realized by the QKD-secured cloud datacenter network. In the quantum cloud, the communication, computing, caching and cipher (4C) resources are provided for data transmission, processing, storing and encryption. To solve the newly emerged 4C resource coordination problem, a 4C-oriented control architecture is designed and the heuristic algorithms for securing service function chains are innovatively proposed. The simulation results show that the proposed algorithms can achieve the great service success ratio performance compared with the baseline.