Open AccessThe security analysis of E91 protocol in collective-rotation noise channel
Author(s) -
Leilei Li,
Hengji Li,
Chaoyang Li,
XiuBo Chen,
Yan Chang,
YuGuang Yang,
Jian Li
Publication year - 2018
Publication title -
international journal of distributed sensor networks
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.324
H-Index - 53
eISSN - 1550-1477
pISSN - 1550-1329
DOI - 10.1177/1550147718778192
Subject(s) - eavesdropping , computer science , noise (video) , qubit , channel (broadcasting) , protocol (science) , computer security , rotation (mathematics) , key (lock) , computer network , key exchange , telecommunications , quantum , public key cryptography , physics , artificial intelligence , quantum mechanics , encryption , medicine , alternative medicine , pathology , image (mathematics)
The bit error in quantum communication is mainly caused by eavesdropping and noise. However, most quantum communication protocols only take eavesdropping into consideration and ignore the result of noise, making the inaccuracy situations in detecting the eavesdropper. To analyze the security of the quantum E91 protocol presented by Ekert in collective-rotation noise channel, an excellent model of noise analysis is proposed. The increment of the qubits error rate (ber) is used to detect eavesdropping. In our analysis, eavesdropper (Eve) can maximally get about 50% of the key from the communication when the noise level approximates to 0.5. The results show that in the collective-rotation noise environment, E91 protocol is secure and the raw key is available just as we have knew and proved. We also presented a new idea in analyzing the protocol security in noise channel.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom