A Bi-directional Use Scheme of Quantum Key Pool

doi:10.3969/j.issn.1671-1122.2020.12.006

Abstract

Abstract:

Both sides of the communication may read the key from the shared quantum key pool at the same time in the quantum secure communication system. If the key is not allowed to be reused, there will be competition in the use of the key in the quantum key pool. To solve this problem, a bi-directional key use scheme of quantum key pool is proposed, and the interaction and implementation mechanism of the specific protocol are given. The scheme is based on the idea of half duplex communication, which effectively solves the competitive use of key in the key pool by controlling the permission for obtaining key actively from the quantum key pool, and realizes that both sides of communication can read the encryption key and decryption key correctly from the shared quantum key pool.

Key words: quantum secure communication, quantum key distribution, quantum key pool, half duplex, bi-directional

CLC Number:

TP309

FENG Yan, LIU Nian, XIE Sijiang. A Bi-directional Use Scheme of Quantum Key Pool[J]. Netinfo Security, 2020, 20(12): 40-46.

Figures/Tables 7

References 15

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