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| Main Author: | |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.05882 |
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| _version_ | 1866912526995816448 |
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| author | Hua, Yingbo |
| author_facet | Hua, Yingbo |
| contents | Secret-message transmission by echoing encrypted probes (STEEP) is discussed as an alternative to quantum key distribution (QKD). The former only needs classic or non-quantum channels while the latter needs both quantum and classic channels for secret-key generation. STEEP is shown to yield a secrecy rate sufficient for one-time pads encryption in many practical situations including in-air channels or undersea optical cables. Other advantages of STEEP over QKD include cost, complexity, compatibility, and robustness against constant eavesdropping. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_05882 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | STEEP -- An Alternative To Quantum Key Distribution Hua, Yingbo Signal Processing Secret-message transmission by echoing encrypted probes (STEEP) is discussed as an alternative to quantum key distribution (QKD). The former only needs classic or non-quantum channels while the latter needs both quantum and classic channels for secret-key generation. STEEP is shown to yield a secrecy rate sufficient for one-time pads encryption in many practical situations including in-air channels or undersea optical cables. Other advantages of STEEP over QKD include cost, complexity, compatibility, and robustness against constant eavesdropping. |
| title | STEEP -- An Alternative To Quantum Key Distribution |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2508.05882 |