Search
Abstract
We present how the mechanisms of quantum Darwinism allow for information leakage in the standard BB84 quantum key distribution protocol, a paradigmatic prepare-and-measure quantum cryptography scenario. We work within the decoherence theory framework and employ the model of measurements provided by quantum Darwinism. We investigate how much of the information about the results crucial for the cryptographic key to be kept secret is leaked during the quantum measurement process and subsequently how much of that information might be later obtained by an eavesdropper using a type of so-called Van Eck side-channel wiretapping. We also show how security can be affected by different ways of organizing the surrounding environment into layers, e.g., rooms or other divisions affecting the spread of quantum information in the environment and its interaction, paving a venue for potential enhancements, and insight into proper engineering of shieldings for cryptographical devices.
Citations
-
0
CrossRef
-
0
Web of Science
-
0
Scopus
Authors (2)
Cite as
Full text
full text is not available in portal
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Quantum Information Processing
no. 24,
ISSN: 1570-0755 - Language:
- English
- Publication year:
- 2025
- Bibliographic description:
- Okuła R., Mironowicz P.: How decoherence affects the security of BB84 quantum key distribution protocol// Quantum Information Processing -Vol. 24,iss. 2 (2025),
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s11128-025-04650-8
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
seen 0 times
Recommended for you
Generic emergence of classical features in quantum Darwinism
- F. Brandão,
- M. Piani,
- P. Horodecki
Quantum key distribution based on private states: Unconditional security over untrusted channels with zero quantum capacity
- K. Horodecki,
- M. Horodecki,
- P. Horodecki
- + 2 authors