- Tytuł:
- Fundamental limit and trade-off between security and secure key generation rate in quantum key distribution
- Autorzy:
- Iwakoshi, Takehisa
- Powiązania:
- https://bibliotekanauki.pl/articles/221832.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
Quantum Key Distribution
Quantum Cryptography
Privacy Amplification
Leftover Hash Lemma - Opis:
- Many researchers have contributed to creating Quantum Key Distribution (QKD) since the first protocol BB84 was proposed in 1984. One of the crucial problems in QKD is to guarantee its security with finite-key lengths by Privacy Amplification (PA). However, finite-key analyses show a trade-off between the security of BB84 and the secure key rates. This study analyses two examples to show concrete trade-offs. Furthermore, even though the QKD keys have been perceived to be arbitrarily secure, this study shows a fundamental limitation in the security of the keys by connecting Leftover Hash Lemma and Guessing Secrecy on the QKD keys.
- Źródło:
-
Metrology and Measurement Systems; 2019, 26, 1; 125-137
0860-8229 - Pojawia się w:
- Metrology and Measurement Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł