Information leakage via side channels in freespace BB84 quantum cryptography

Details Information leakage via side channels in freespace BB84 quantum cryptography Information leakage via side channels in freespace BB84 quantum cryptography

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11f5001n&link_type=abstract

New Journal of Physics, Volume 11, Issue 6, pp. 065001 (2009).

Physics

8

Scientific paper

While the BB84 protocol is in principle secure, real implementations suffer from imperfections. Here, we analyse a free space BB84 transmitter, operating with polarization encoded attenuated pulses. We report on measurements of all degrees of freedom of the transmitted photons in order to estimate potential side channels of the state preparation at Alice.

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