Estimates for practical quantum cryptography

Norbert Lütkenhaus
1999 Physical Review A. Atomic, Molecular, and Optical Physics  
In this article I present a protocol for quantum cryptography which is secure against attacks on individual signals. It is based on the Bennett-Brassard protocol of 1984 (BB84). The security proof is complete as far as the use of single photons as signal states is concerned. Emphasis is given to the practicability of the resulting protocol. For each run of the quantum key distribution the security statement gives the probability of a successful key generation and the probability for an
more » ... per's knowledge, measured as change in Shannon entropy, to be below a specified maximal value.
doi:10.1103/physreva.59.3301 fatcat:wv5zbpf3fbclbhmocdjowxggf4