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Security Enhancement of Quantum Noise Stream Cipher Based on Probabilistic Constellation Shaping

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arxiv 2305.09152 v1 pith:JNH77Z7W submitted 2023-05-16 cs.CR quant-ph

Sheng Liu , Shuang Wei , Wei Wang , Chao Lei , Tianhe Liu , Yajie Li , Yunbo Li , Dawei Ge
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Dong Wang Yongli Zhao Dechao Zhang Han Li Jie Zhang
This is my paper · ORCID
classification cs.CRquant-ph
keywords cipherprobabilisticschemesecurityshapingbasisbitsciphertext
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We propose a QNSC pre-coding scheme based on probabilistic shaping of the basis, to reduce the probability of ciphertext bits that are easier to be intercepted. Experiment results show this scheme can improve the security performance by 100% in terms of Eve's cipher text BER.

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